СПОСОБ ДИНАМИЧЕСКОГО КОНТРОЛЯ ВНУТРЕННИХ ПАРАМЕТРОВ СИСТЕМ ЭЛЕКТРОДВИГАТЕЛЯ

Изобретение относится к области электротехники и предназначено для проведения измерений и осуществления динамического контроля соответствующих данных, к примеру, таких, как температура и вибрация, в электродвигателе. Сущность изобретения состоит в том, что оно предусматривает использование волоконно-оптического кабеля (5), заделанного в электроизоляцию (4), по меньшей мере, одного провода (3) обмоток электродвигателя, причем такой кабель (5) образует собой, по существу, растянутый термометр и/или вибродатчик. Технический результат от использования данного изобретения состоит в упрощении и в удешевлении предлагаемого способа, а также в повышении его надежности. 4 з.п. ф-лы, 3 ил.

Силовой кабель-жгут

Полезная модель относится к области электротехники, а именно к электрическим кабелям. Технический результат заключается в обеспечении работоспособности нагрузки во время короткого замыкания и отсутствии необходимости срочной замены предохранителей. Предлагается силовой кабель, представляющий собой жгут изолированных проводов, при этом каждый провод имеет предохранители в начале и конце. Для работы в цепях постоянного тока предохранители на дальнем от источника конце изолированных проводов могут быть заменены на диоды, что позволяет разместить предохранители в одном месте, при этом параллельно предохранителям могут быть поставлены светодиоды вместе с ограничивающими ток сопротивлениями, что позволяет идентифицировать перегоревший предохранитель.

АДРЕСНЫЙ ЛИНЕЙНЫЙ ТЕПЛОВОЙ ИЗВЕЩАТЕЛЬ

Полезная модель относится к области пожарной безопасности различных объектов и может быть использована в составе системы пожарной сигнализации для объектов транспортной инфраструктуры (автомобильные и ж/д тоннели), для объектов большой площади (парковки, производственные цеха, склады), а также большой протяженности (кабельные коллектора, приямки), где применение стандартных методов детекции пожара затруднительно и/или связано с частым техническим обслуживанием и быстрым выходом из строя оборудования. Технический результат вышеприведенной задачи решается за счет разработки адреснного линейного теплового извещателя (термокабель), включающий в себя блок обработки и чувствительный элемент, где последний представляет собой заключенные в два слоя оболочки и металлического экрана гибкий кабель и смонтированные на гибком кабеле температурные датчики, где к каждому концу чувствительного элемента подключен блок обработки, и совместно с ним выступает цифровым каналом связи, при этом внутри гибкого ...

КАБЕЛЬ ИЗ СИНТЕТИЧЕСКИХ ВОЛОКОН С ИНДИКАЦИЕЙ УДЛИНЕНИЯ И НАГРЕВА

Группа изобретений относится к конструктивным особенностям кабелей. Кабель выполнен с возможностью отслеживания его нагрева и удлинения и содержит отрезок кабеля-сердечника и полый плетеный усиливающий элемент, содержащий синтетические волокна. При этом отрезок кабеля-сердечника содержит оптоволоконные проводники, каждый из которых имеет спиральную форму, и твердый гибкий термопластичный материал, внутри которого полностью заключены оптоволоконные проводники. Причем один из оптоволоконных проводников используется для передачи длин волн комбинационного обратного рассеяния, а другой из оптоволоконных проводников используется для передачи длин волн рассеяния Бриллюэна. Также заявлена комбинация кабеля и опрашивающего устройства, выполненного с возможностью считывания и интерпретирования комбинационного обратного рассеяния, соединенного и сообщающегося с оптоволоконным проводником. Также заявлен способ определения удлинения несущего нагрузку кабеля. Технический результат заключается в уменьшении ...

ПОЛИФУНКЦИОНАЛЬНЫЙ ДАТЧИК

Изобретение относится к измерительной технике и может быть использовано в системах противопожарной безопасности, для контроля и регулирования температуры в реакторах, сигнальных и противопожарных системах, а также в конструкциях катализаторов с автотермическим подогревом. Термочувствительный кабель содержит металлическую внешнюю оболочку и центральный электрод, разделенные полупроводниковым наполнителем. Между центральным электродом и внешней оболочкой размещены по меньшей мере две внутренние оболочки, между которыми последовательно расположены слои полупроводниковых наполнителей с положительным или отрицательным температурным коэффициентом сопротивления, обеспечивающие фиксацию температуры или интервала температур по совпадениям температурных коэффициентов электросопротивления слоев. Повышается надежность сигнала аварийного нагрева путем его дублирования. В системах контроля и регулировки температуры осуществляется фиксация не только температуры, но и заданного интервала температур. 5 ...

Устройство для контроля состояния изоляции сети оперативного постоянного тока

Гибкий кабель

Starkstromkabel mit Wassersensor

Telecommunications cable for compressed-gas monitoring

Provided inside the cable (KA) in addition to the actual conductor cores is at least one pipe (RO) which is provided with openings and is used for transporting the compressed gas. This pipe (RO) is surrounded by external sheathing (FO, AH) which runs at a distance from the surface of the pipe (RO) and is likewise constructed to be permeable for the compressed gas. ...

Cable having test conductors

In the case of a cable having a sheath and conductors which are located underneath the sheath, which cable is provided with a filling and contains strain-relief elements, as well as test conductors for indicating leakage points in the cable, it is provided that the test conductors are embedded in a hose (3) having constrictions (5), and that the test conductors consist of two stranded wires (1, 2) whose insulation (9) is perforated (Figures 1-3). ...

SICHERHEITSVORRICHTUNG MIT LEITFÄHIGEN POLYMERSENSOR

Verfahren und Vorrichtung zum Schutz eines Leiters bei Auftreten eines Lichtbogens

Um bei einem 42 V-Bordnetz in einem Kraftfahrzeug einen Lichtbogen (L) erkennen und geeignete Schutzmaßnahmen einleiten zu können, ist vorgesehen, zum Schutz einer stromführenden Versorgungsleitung (6) an dieser zumindest teilweise eine Detektionsleitung (18) entlang zu führen, wobei mittels eines infolge eines Lichtbogens (L) über die Detektionsleitung (18) fließenden Detektionsstroms (I¶D¶) der Stromfluss (I¶V¶) über die Versorgungsleitung (6) zumindest reduziert wird.

ELEKTRISCHE SENSORLEITUNG ZUR LECKAGEERKENNUNG

WASSERDETEKTORDRAHT UND ENERGIEKABEL MIT EINEM WASSERDETEKTORDRAHT

Verfahren und Einrichtung zur Ortung von Teilentladungen in elektrischen Kabeln

Die Erfindung betrifft Verfahren und Einrichtungen zur Ortung von Teilentladungen in elektrischen Kabeln mit einer an das zu prüfende Kabel gekoppelten Hochspannungsquelle, einer an ein Ende des Kabels angeschlossenen Auskoppeleinheit und einem über eine Sensoreinheit mit der Auskoppeleinheit verbundenen und aus den Sensorsignalen bei Vorhandensein eine Teilentladung oder Teilentladungen ermittelnden Datenverarbeitungssystem. Die Verfahren und Einrichtungen zeichnen sich insbesondere durch eine kurze Auswertedauer der Ortung aus. Das erfolgt durch Erkennung von Ereignissen, Parametrisierung der als Impulse erkannten Ereignisse, Paarbildung der als Impulse erkannten und parametrisierten Ereignisse, Klassifikation der Ereignispaare, Zuordnung einer Teilentladung aus der Klassifikation und Bestimmung des Ortes der Teilentladung/en aus der Laufzeitdifferenz zwischen der jeweiligen Teilentladung und ihrer zugehörigen Reflexion.

ELEKTRISCHES KABEL MIT SCHIRM ODER KONZENTRISCHEM MITTEL- BZW. SCHUTZLEITER.

Cable including monitoring strand

A monitoring cable 200 extending in an elongate direction comprises: an elongate protective jacket 210; transport conduits or cables 220; and a monitoring strand 248. The physical relationships between the components, placed in a helical arrangement, reduces relative movement and twisting of the cable. The monitoring strand has a solid casing carrying optical fibres, spaced apart in a plane orthogonal to the cables longitudinal direction. The monitoring stand casing 240 maintains the spacing of the monitoring optical fibres whilst its outer surface is shaped or moulded to prevent movement/twisting of the monitoring strand relative the cable. Also claimed is an umbilical power cable, a cable shape monitoring system having a laser source and detector and a monitoring strand suitable for strain sensing, its outer surface shaped to prevent twisting relative to the cable in which it is installed. The cable may be a submarine cable for power delivery, communication or transport of hydraulics ...

An Improved Apparatus for Ascertaining the Position of a Core within a Body

... 1,198,031. Measuring eccentricity of cable cores. DAVO G.m.b.H. & CO. K.G. July 29, 1968 [July 29, 1967], No.36117/68. Heading G1N. Apparatus for measuring the eccentricity of a cable core comprises an inductive probe 1 which is driven round the periphery of the cable and an alternating current generator 81 which is driven synchronously with the probe 1 to provide reference signals for two phase sensitive rectifier circuits which derive from the output of the probe signals representing the position of the core in two co-ordinate directions. As shown in Figs. 1 and 2, the cable 97 is guided by rollers 98 past a test head 114 which is rotated about the cable by a motor 80 which also drives the A.C. generator 81. The power supply for and the output signal from the rotating measuring head 114 is coupled through transformer 14, 21 to the stationary parts of the apparatus, further coupling transformers 15, 12 being provided in the head 114 to allow radial adjustment of the probe. The pick-up ...

Improvements in and relating to multi-core power cables

... 385,564. Cables. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Felten & Guilleaume Carlswerk Akt.-Ges.; Mulheim, Cologne, Germany.) Aug. 12, 1932, No. 22605. [Class 36.] In order to det e c t penetration o moisture through the outer sheath of a multicore electric cable to measure the temperature of the cable, there are arranged in the space between the m a i n conductors two conductors c with highly hygroscopic dry paper insulation d. The conductors c are connected to a bridge device r2, r3 r4 to which the sheath b of the cable is also connected, to indicate leakage of moisture by failure of the insulation d, and to a bridge device r21>, r31>, r41> including a temperature-measuring device R.

THREE-PHASE ELECTRICAL POWER CABLE

ELECTRICAL CABLE MONITORING CIRCUITRY

... 1469314 Protective arrangements SIEMENS AG 11 June 1974 [29 June 1973] 25937/74 Heading H2K In a combination of a length of electric cable and monitoring circuitry connected thereto for detecting short circuiting between the conductors in the length of cable which comprises main current conductors 2 each surrounded by a screen conductor 4 and all contained within a protective conductor 7 together with control conductors 5, the main current conductors are connected via inductors 12, a D.C. supply 13 and a relay 14 to the protective conductor 7, the screen conductor 4 is connected via a D.C. supply 21 and a relay 22 to the protective conductor 7 and the control conductors 5 are connected at one end via an A.C. supply and relay 17 to the protective conductor 7 and at their other ends via rectifiers 16 to protective conductor 7. The relays control a circuit breaker 11 in the main conductors. If a short circuit occurs between the main current conductors or the control conductors and the protective ...

Monitoring internal parameters of electrical motorsystems.

ELECTRICAL SENSOR LINE FOR LEAKAGE RECOGNITION

POWER CABLE WITH ELECTRO-CHEMICAL ONE AND CHEMICAL ONE ANALYTSENSOR

CABLES FOR POWER INSTALLATION FOR LOCALVARIABLE CONSUMERS

THREE-PHASE HIGH-VOLTAGE CABLE ARRANGEMENT WITH SCREEN FROM CROSSING AND AUSKREUZUNG THE WATER DETECTION WIRES

HIGH VOLTAGE CABLE, IN PARTICULAR FOR TENSIONS FIBRE OPTICS INSERTED FROM 6 TO 60 KV, WITH.

SENSOR CABLE.

Method for measuring the length of an electric cable that uses an optical fibre element as a sensor

The present invention relates to a method of measuring the length of an electric cable, the method comprising: providing an electric cable having a cable length and including a cable neutral axis, and a fibre unit longitudinally extending along the cable and including an optical fibre arranged substantially along the neutral axis, wherein the optical fibre is mechanically coupled with the cable; injecting an optical signal into the optical fibre; detecting back-scattered light from the optical fibre responsive to said injected optical signal; analysing the detected back-scattered light as a function of time so as to determine the length of the optical fibre, and deriving the cable length from the length of the optical fibre.

Multi-function security sensor cable with fiber-optic security sensor and system with integrated secure data transmission and power cables

WATER ALARM AND FAULT-LOCATING FOR AIR CORE PLASTIC-INSULATED TELEPHONE CABLE

SENSORS FOR DETECTING AND LOCATING LIQUID LEAKS

A sensor cable for detecting and locating liquid chemicals, especially hydrocarbons and/or water leaks without interruption of the system, wherein three conductors and appropriate insulation are arranged in a configuration that provides circuits for detecting and locating liquid chemicals and for detecting and locating liquid water.

MONITORING INTERNAL PARAMETERS OF ELECTRICAL MOTOR SYSTEMS

A process and system for measuring and monitoring data, such as temperature and vibrations, in an electrical motor comprises a fibre optical cable (5) embedded in the electrical insulation (4) of at least one wire (3) of the motor windings which cable thus forms an elongate thermometer and/or vibration sensor.

DEFORMATION MONITORING SYSTEM FOR ELECTRIC CABLES

... ²A deformation monitoring system for measuring at least the tensile strain of ²at ²least one electric cable comprising: an electric cable comprising a strain ²sensor ²longitudinally extending along the cable and including a strain optical fibre ²having ²proximal and distal ends arranged within a bending neutral region surrounding ²and ²including a bending neutral longitudinal axis of the electric cable, and at ²least two ²longitudinal structural elements, at least one of the at least two ²longitudinal structural ²elements being a core comprising an electrical conductor, wherein the strain ²sensor is ²mechanically coupled with at least one of the at least two longitudinal ²structural ²elements at least in a strained condition, and a sampling apparatus for ²measuring ²spectral changes of Brillouin scattered light in the strain optical fibre, the ²sampling ²apparatus being optically coupled with at least the proximal end of the strain ²optical ²fibre for injecting light into the strain optical ...

Electrical seilförmiger conductor for cable purposes

Installation pour la détermination indirecte de la température d'un câble aérien de transport de l'électricité

Elektrisches Kabel

Mehrleiter-Starkstromkabel mit zur Überwachung des Kabels bestimmten Prüfleitern.

Einrichtung zum elektrischen Beheizen von flächenhaft ausgedehnten Baukörpern

Elektrisch erwärmbare Decke mit einer Sicherheitsvorrichtung

KABEL MIT KUNSTSTOFFISOLIERTEN ADERN.

Starkstromkabel mit Metallmantel

Sicherheitskabel, insbesondere für elektromotorisch betriebene Rasenmäher

Vorrichtung zur Ermittlung der Lage des Kerns eines aus Kern und Mantel bestehenden Körpers

Internally-cooled high-voltage power cable

Cable installation having an internally-cooled high-voltage power cable

Telephone cable provided with a fault-locating wire having an insulated central conductor

Detection system cable break.

Linvention concerne un système de détection (1) de rupture de câble comprenant un dispositif de surveillance (2) émettant en continu un signal de surveillance et étant conçu pour alerter en temps réel un service dintervention en cas de rupture dau moins un câble à surveiller (4) soutenu par une pluralité de supports de câble (11) espacés les uns des autres, le système de détection (1) comprend en outre un dispositif de contrôle (3) comportant au moins un câble de contrôle (5) dans lequel passe le signal de surveillance, ledit câble de contrôle (5) étant conçu pour se rompre, dans une zone prédéterminée de rupture, sous une contrainte inférieure à une contrainte de rupture prédéterminée du câble à surveiller (4). Linvention concerne également un collier de liaison (6) conçu dun câble de contrôle (5) sur un support de câble (11).

Detection system cable break.

L’invention concerne un système de détection (1) de rupture de câble comprenant un dispositif de surveillance (2) émettant en continu un signal de surveillance et étant conçu pour alerter en temps réel un service d’intervention en cas de rupture d’au moins un câble à surveiller (4) soutenu par une pluralité de supports de câble (11) espacés les uns des autres, le système de détection (1) comprend en outre un dispositif de contrôle (3) comportant au moins un câble de contrôle (5) associé au câble à surveiller (4) dans lequel passe le signal de surveillance, ledit câble de contrôle (5) étant conçu pour se rompre, dans une zone prédéterminée de rupture, sous une contrainte inférieure à une contrainte de rupture prédéterminée du câble à surveiller (4). L’invention concerne également un collier de liaison (6) conçu pour le montage d’un câble de contrôle (5) sur un support de câble (11).

Power line element and system for insulation monitoring.

Die Erfindung betrifft ein Stromleitungselement (2), aufweisend einen elektrischen Leiter (8) und eine Isolierung (14) des elektrischen Leiters (8). Die Isolierung weist eine Lichtwellenleitungseinheit auf. Weiterhin betrifft die Erfindung ein System und ein Verfahren zur Isolationsüberwachung.

Stromleitungselement und System zur Isolationsüberwachung.

Die Erfindung betrifft ein Stromleitungselement, aufweisend einen elektrischen Leiter (8) und eine Isolierung (14) des elektrischen Leiters (8). Die Isolierung (14) weist eine Lichtwellenleitungseinheit auf. Weiterhin betrifft die Erfindung ein System und ein Verfahren zur Isolationsüberwachung.

ПРОВОД ИЗОЛИРОВАННЫЙ ЗАЩИЩЕННЫЙ

Изобретение относится к электротехнике, в частности к кабельной технике, и может быть использовано при конструировании и изготовлении гибких, защищенных кабелей. Провод изолированный защищенный состоит из нескольких металлических проводников, центральный проводник изолирован и является фазой, а остальные проводники все вместе являются нулем и состоят из металлической ленты, размещенной вокруг центрального проводника коаксиально к нему, и трех проводников разного диаметра, размещенных параллельно центральному проводнику, и плотно прилегают к металлической ленте. Из трех проводников разного диаметра два проводника меньшего диаметра служат несущими тросами.

PROTECTED INSULATED CABLE

Heat-sensitive alarm fire-resistant mica tape and application thereof

Rare-earth aluminum alloy fireproof alarming cable for high speed rail

Flexible mineral insulation cable

The utility model discloses a flexible mineral insulation cable, include the conductor and be located the outer copper sheath of conductor, the conductor is circular copper stranded conductor, and single the equal cladding in the conductor outside has an inorganic mineral insulation layer, glass fiber tape around the package in the outside on inorganic mineral insulation layer, it has the glass silk to restrict to pack between the inorganic mineral insulation layer and glass fiber tape and inorganic mineral insulation layer, is provided with the supervision sinle silk between glass fiber tape and copper sheath. This practicality enough improves the compliance and the resistant electricity stability of conductor.

High -speed cable is used to many functional type elevator

The utility model relates to a cable field. High -speed cable is used to many functional type elevator, including the cable main part, the cable main part includes the sheath, has buried two at least cable cores in the sheath underground, and two at least adjacent cable core groups that arrange in the sheath, are buried underground side by side to the cable core parallel in the sheath, and every cable core group comprises two stranding opposite direction's cable core, and the diameter difference of two cable cores of every cable core group is not more than 2mm, be equipped with two kind at least sinle silks in video line sinle silk, optic fibre sinle silk, net twine sinle silk, the power cord sinle silk in the cable core. The utility model discloses be equipped with two kind at least sinle silks in video line sinle silk, optic fibre sinle silk, net twine sinle silk, the power cord sinle silk in the cable core. Be convenient for realize the not of the same race functional of cable core.

Termite-proof mildew-proof moisture-proof steel belt armored sheath power cable

Novel display screen data line

Device for monitoring cable is prevented destroying

High-voltage power transmission power cable

Power supply system for theft-proof high-voltage power transmission power cable

Automobile-used non-shielding high-voltage ignition cable with temperature sensing and alarming functions

Novel high voltage power cable and equipment for manufacturing same

Power cable with function of early warning and detection

Improvements with the processes and electromagnetic instruments of checking of end products

INSULATION OF THE WIRE OF LOCALIZATION AND CABLES TELEPHONE

SHEATH FOR PROTECTING AN ELECTRICAL HARNESS TO PREVENT ITS DAMAGE

ELECTRICAL CABLE WITH ANTI-THEFT DEVICE

CONDUCTIVE COMPONENT AND METHOD FOR TESTING AN ELECTRICAL LINE

An Improved Apparatus for Ascertaining the Position of a Core within a Body

FLUID PRESSURIZED ELECTRICAL CABLES HAVING MEANS INCORPORATED THEREWITH FOR LOCATING LEAKS

DETECTOR OF the OVERHEATING Of a CABLE OF TRANSPORT Of ENERGY

New process of protection against the risks of electrocution and accidents caused by certain short-circuits

DEVICE FOR DETECTING MALFUNCTION OR FLIGHTS OF ELECTRIC CABLES, SENSOR SYSTEM AND DETECTION METHOD USING SUCH A SYSTEM

Ce dispositif (10) de détection de disfonctionnements ou de vols de câbles électriques comprend un anneau (12) adapté pour être fixé de façon irréversible autour d'un câble électrique (1). Cet anneau (12) comprend en outre des moyens de détection (14, 16, 18) du passage du courant électrique dans le câble électrique (1), des moyens de détection (24) d'un échauffement, des moyens de localisation de l'anneau (12) de manière visuelle (28) et/ou sonore (30), des moyens de détection (22) d'un déplacement du câble (1), et des moyens d'émission (20) de signaux d'alarme à destination d'un récepteur, ces signaux d'alarme incluant un code d'identification du dispositif de détection (10).

SETT FOR LOKALISERING AV LEGET FOR ETT INDIKERAT LECKAGE I EN TRYCKMEDIUMFYLLD KABEL OCH KABEL FOR ANVENDNING VID GENOMFORANDE AV SETTET

Intelligent leakage current detection and interruption device for power cord

An intelligent leakage current detection and interruption device for a power cord, including a switch module configured to control electrical connection of first and second power lines between input and output ends; a leakage current detection module, including first and second leakage current detection lines coupled in series, configured to detect a leakage current on the first and second power lines, respectively; a detection monitoring module, coupled in series to the first and second leakage current detection lines and to the first and second power lines, configured to detect an open circuit condition in the first or second leakage current detection line; and a drive module, coupled to the switch module, the leakage current detection module and the detection monitoring module, configured to drive the switch module to cut off power to the output end in response to any detected leakage current or open circuit condition.

WATER SENSING WIRE AND POWER CABLE USING A WATER SENSING WIRE

The invention relates to a water sensing wire (WSW) for a cable (PCA) wherein the water sensing wire (WSW) comprises a conductor (WC), a water permeable insulation (WI) surrounding said conductor (WC) and wherein said conductor (WW) is formed by a plurality of metal wires (WW). The water sensing wire (WSW) may also comprise a plurality of filaments (WRFI) contained inside the water permeable insulation (WI). Therefore, longitudinal and/or radial application of stresses cannot cause a damage of the water sensing wire (WSW) because damages can be avoided by the deformable cross section of the sensor conductor and by the reinforcement provided through the filaments (WRFI). The water sensing wire (WSW) in accordance with the invention is particularly useful in power cables but may also be used in telecommunication cables or optical fibres.

ELECTRIC CABLE HAVING A COOLANT LINE

OPTICAL FIBER CABLE

PURPOSE: To easily spot a fault point by measuring capacitance in case of the rupture of a cable by forming the 1st conductor layer of aluminum, etc., outside an optical fiber core, forming an insulating layer outside the 1st conductor layer, and further forming the 2nd conductor layer outside it. CONSTITUTION: The 1st conductor layer 4 is formed of aluminum, etc., outside the optical fiber core consisting of a core 1 and a clad 2 and its outside is coated with the insulating layer 6; and the 2nd conductor layer 5 is further formed outside it and the whole body is protected by an external coating 7. If the optical fiber ruptures, the capacitance between the 1st conductor layer 4 and the 2nd conductor layer 5 is measured to know the distance to the rupture point. COPYRIGHT: (C)1986,JPO&Japio ...

STRAND CONDUCTOR FOR AERIAL INSULATED WIRE

PURPOSE: To prevent breaking of a wire due to corrosion cracking by stranding in a corrosion cracking detection copper strands which are more liable to stress corrosion cracking than other copper strands. CONSTITUTION: Stress corrosion cracking detection copper strands 2 consist of copper wires which are added with several times larger amounts of impurities (e. g. Pb, Sn) than normal copper strands. The strands 2 are more liable to stress corrosion cracking than other copper strands 1 by a factor of about 1.5 to 3. As a result, a crack occurs in the detection copper strands 2 before stress corrosion cracking occurs in the copper strands 1 so that the crack can be detected beforehand, countermeasures can be taken, and the breaking of the wire can be prevented. COPYRIGHT: (C)1979,JPO&Japio ...

VERFAHREN UND VORRICHTUNG ZUR PERFORIERUNG DER ISOLIERUNG KUNSTSTOFFISOLIERTER MELDEADERN

Verfahren zum Lokalisieren eines Unterseekabels und Energieversorgungsschaltkreis für dieses Kabel

Verfahren zur Überwachung einer Leitung auf veränderte Umgebungsbedingungen sowie Messanordnung zur Überwachung einer Leitung auf veränderte Umgebungsbedingungen

Das Verfahren dient zur Überwachung einer Leitung auf Veränderung der Umgebungsbedingungen, wobei die Leitung eine Messleitung mit einer vorbestimmtem Länge aufweist, die einen von einer Isolierung mit bekannter Dielektrizitätskonstante umgebenen Messleiter aufweist. Bei dem Verfahren wird ein analoges Signal mit vorgegebener Frequenz erzeugt und an einem Einspeiseort eingespeist. Das Signal wird an einem vorbestimmten Reflexionsort reflektiert und eine resultierende Signalamplitude wird an einem vorgegebenen Messort gemessen. Aus der Signalamplitude wird ein Maß für die Umgebungsbedingung, insbesondere Temperatur, ermittelt.

FLUIDGEFUELLTES ELEKTRISCHES KABEL

DREI- ODER MEHRADRIGE ISOLIERTE FLEXIBLE LEITUNG.

PRUEF- BZW. STEUERADER MIT POLYESTERFOLIE.

Schutzvorrichtung für ein Stromkabel in einem Kraftfahrzeug

Improvements in or relating to a method and apparatus for the measurement of the temperature of electric cables

... 170,728. Fawssett, E. Aug. 23, 1920. Thermometers.- In apparatus for measuring the core temperature of an electric cable, the temperature of the lead or other covering or sheath of the cable is directly measured, and the difference between the temperatures of the core and the sheath is indirectly measured, these measurements being added to give the required temperature of the core. The difference between the temperature of the core and sheath. is reproduced in an artificial cable comprising a heater E, of material having a temperature coefficient similar to that of the core, ,and a bath F consisting of layers of paper impregnated with grease or other semi-solid mixture, the thermal constants of which are such as to give the, same temperature gradient between the heater E and the container G as that existing in the real cable. Alternatively the heater may form the core of a short length of miniature cable, having the same thermal constants as the cable under observation. For alternating ...

A SOLVENT RESPONSIVE SIGNAL-CARRYING DEVICE

Conductive path structure and wire harness

A conductive path structure includes a conductor that includes a first conductive portion and a second conductive portion which are connected to each other through a cut-off facilitating portion, and an insulation member that covers the cut-off facilitating portion directly or indirectly. When the cut-off facilitating portion is cut off so as to separate the first conductive portion and the second conductive portion to each other due to an impact applied to the cut-off facilitating portion, the insulation member is configured so as to cover the separated first conductive portion and the separated second conductive portion.

SENSOR TAPE FOR SECURITY DETECTION AND METHOD OF FABRICATION

A sensor in the form of an elongated flexible tape has a plurality of signal paths made from electrical wire or optical fiber which extend between one end and another end of the tape. The electrical wires or optical fibers are disposed in spaced relation across the width and along the length of the tape, and are terminated in connectors at the endpoints of the tape. One connector includes a multiplexer to which an input signal is applied for propagation along the signal paths, The other connector includes an AND gate which provides an output signal which changes in the event of a break in any one or more of the signal paths, thereby indicating an alarm condition. The connectors may be integrated into a signal detector to interface with communication links. The tape is a material that is non-conductive and in which the wires or optical fibers may be woven, disposed or embedded in some manner. 1. A sensor security detector tape , comprising:a material strip having a predetermined width and a predetermined length and first and second ends;a plurality of separate and parallel signal paths arranged along the predetermined length of the material strip, each signal path having a first end and a second end and operative in a non-alarm condition to carry a signal;a first circuit coupled to each first end of the plurality of signal paths and cooperative to couple signals from a signal source to each of the plurality of signal paths; anda second circuit coupled to each second end of the plurality of signal paths and operative to provide an alarm signal in the event of a break in any of the plurality of signal paths.2. The sensor security detector tape of claim 1 , wherein the second circuit includes an AND gate for receiving signals from the plurality of signal paths claim 1 , and a processor for providing an alarm signal in the event of the loss of signals in one or more of the plurality of signal paths.323. The sensor security detector tape of claim claim 1 , wherein the ...

SECURE JACKET

A secured cable system for protecting an inner cable is disclosed. The secured cable system includes a cable security system having a first security tape including a tape portion upon which a plurality of detection lines are arranged. The security system may also include a detection box in electrical or optical communication with each of the detection lines in the first security tape. In one embodiment, the security tape is spiral wrapped about the inner cable in a first direction along a length of the inner cable, the security tape being overlapped upon itself at a predetermined overlap factor. The secured cable system may also include a second security tape including a tape portion upon which a plurality of detection lines are arranged in a pattern wherein the second security tape is wrapped about the first security tape in a second direction opposite the first direction. 1. A secured cable system comprising:(a) an inner secured cable; i. a first security tape including a tape portion upon which a plurality of detection lines are arranged; and', 'ii. a detection box in electrical or optical communication with each of the detection lines in the first security tape;', 'iii. wherein the security tape is spiral wrapped about the inner cable in a first direction along a length of the inner cable, the security tape being overlapped upon itself., '(b) a cable security system comprising2. The secured cable system of claim 1 , wherein the detection lines are arranged in a parallel relationship onto the tape portion.3. The secured cable system of claim 2 , wherein a spacing between the detection lines is up to about 5 millimeters.4. The secured cable system of claim 1 , wherein the detection lines are electrical conductors.5. The secured cable system of claim 1 , wherein the detection lines are fiber optic cables.6. The secured cable system of claim 1 , wherein the detection box is a time domain reflector.7. The secured cable system of claim 1 , wherein the overlap factor ...

ELECTRICAL LINE FOR A MOTOR VEHICLE

An electrical line () for electrically conductively connecting two units arranged in a motor vehicle, where the units have insulated electrical conductors surrounded by a common electrically effective screen. Over the entire length of the line () the construction of the line includes at least one light conductor () which is connected in the operating position to an evaluating unit () coupled to a switching element (), and is integrated in the screen () of the line (), or is arranged directly underneath the screen () of the line () while being in contact with the line (), so that damage to the line () leads with certainty at least to a deformation of the light conductor () which leads to a signal which can be recognized by the evaluating unit (). 1at least one light conductor is present in the construction of the line over the entire length of the line, and, in the position of operation is connected to an evaluating unit and is integrated in a screen of the line or directly underneath the screen while contacting the screen, so that damage to the line produces with certainty at least a deformation of the light conductor which results in a signal to be recognized by the evaluating unit.. Electrical line for electrically conductively connecting two units arranged in a motor vehicle, where the units have insulated electrical conductors surrounded by a common electrically effective screen, said electrical line comprising: This applications claims the benefit of priority from European Patent Application No. 12 306 308.3, filed on Oct. 23, 2012, the entirety of which is incorporated by reference.1. Field of the InventionThe invention relates to an electrical line for electrically conductively connecting two units arranged in a motor vehicle, wherein the line includes insulated electrical conductors which are surrounded by a common, electrically effective screen. Such a line is disclosed in EP 1 921 635 B1.2. Description of the Related ArtSuch a line can be used in a motor ...

CABLE WITH SHEATH ARRANGEMENT FOR DETECTING BENDING

The disclosure relates to a cable, which is adapted to extend in an initial configuration according to a predetermined initial state and in a deformed configuration to assume a deformed state compared with the initial state, wherein the cable has a sheath arrangement, which extends along a longitudinal axis of the cable at least in sections, wherein the sheath arrangement is adapted to change its impedance according to the initial or deformed configuration of the cable. The disclosure likewise relates to an arrangement comprising a cable and a measuring unit as well as a method for detecting a deformed configuration of a cable. 1. A cable ,which is adapted to extend in an initial configuration according to a predetermined initial state and in a deformed configuration is adapted to assume a deformed state compared with the initial state,wherein the cable has a sheath arrangement, which extends at least in sections along a longitudinal axis of the cable,wherein the sheath arrangement is adapted to change its impedance according to the initial configuration or the deformed configuration of the cable.2. A cable according to claim 1 ,wherein the initial configuration corresponds to a linear configuration, in which the cable extends substantially in a straight line, and the deformed configuration corresponds to a bent configuration, in which the cable has a predetermined bending radius, at least in sections.3. A cable according to claim 1 ,wherein the initial configuration corresponds to an unstretched configuration, in which the cable has an initial length, and the deformed configuration corresponds to the stretched configuration, in which the cable is stretched and lengthened to a predetermined extent, at least in sections.4. A cable according to claim 1 ,wherein the sheath arrangement is adapted to increase its impedance on assuming the deformed configuration as compared to the initial configuration.5. A cable according to claim 1 ,wherein the sheath arrangement is ...

LCDI Power Cord

A power cord with leakage current detection function includes an insulated neutral wire and aluminum foil wrapping or surrounding the neutral wire insulator. The neutral wire aluminum foil has a conductive side and a non-conductive side, wherein the non-conductive side is adjacent to the outside of the neutral wire insulator and the conductive side is facing outwards. The power cord also includes an insulated line wire surrounded by aluminum foil where the conductive side is facing outwards and in contact with the conductive side of the aluminum foil surround the neutral wire. The power cord also includes a copper braid surrounding an insulated ground wire, wherein the copper braid is in simultaneous electrical contact with the conductive sides of the line and neutral aluminum foil wraps. 1. A power cord with leakage current detection function , comprising:a neutral wire;a neutral wire insulator surrounding the neutral wire; a first conductive side; and', 'a first non-conductive side, wherein the non-conductive side is adjacent to the outside of the neutral wire insulator;, 'a first aluminum foil surrounding the neutral wire insulator, wherein the first aluminum foil comprisesa line wire;a line wire insulator surrounding the line wire; a second conductive side; and', 'a second non-conductive side, wherein the second non-conductive side is adjacent to the outside of the line wire insulator;, 'a second aluminum foil surrounding the line wire insulator, wherein the second aluminum foil comprisesa ground wire;a ground wire insulator surrounding the ground wire; anda copper braid surrounding the ground wire insulator, wherein the copper braid is in simultaneous electrical contact with the first and second conductive sides of the first and second aluminum foil, respectively.2. The power cord as in further comprising a Leakage Current Detector Interrupter (LCDI) circuit connected to the copper braid.3. The power cord as in wherein the copper braid further comprises claim 1 ...

Underground Layable Power Cable, In Particular, a Submarine Cable

An underground layable power cable, in particular a submarine cable, having at least one phase conductor and at least one optical fiber conductor. The optical fiber conductor is integrated in the phase conductor. The optical fiber conductor may include at least one optical fiber. Further, the optical fiber may be surrounded by at least one protective layer, which may be formed from a plastic-gel combination. The gel may at least one of a silicone gel, a glass fiber material, or a carbon fiber material. 1. An underground layable power cable , wherein the power cable is a submarine cable , and wherein the power cable is a medium voltage cable or a high voltage cable , comprisingat least one phase conductor, andat least one optical fiber conductor formed as a temperature sensor,wherein the optical fiber conductor is integrated in the phase conductor,wherein the optical fiber conductor comprises at least one optical fiber,wherein the optical fiber is surrounded by at least one protective layer,wherein the protective layer is formed from a plastic-gel combination, wherein the gel is a silicone gel, and/or a glass fiber material and/or a carbon fiber material.2. The power cable according to claim 1 , wherein the phase conductor comprises a substantially circular cross-section and the optical fiber conductor is arranged in the center of the phase conductor.3. The power cable of claim 1 , wherein the phase conductor is a phase conductor selected from the group consisting of:a segment manager with at least two segments,a stranded phase conductor,a pressed phase conductor,a profiled phase conductor, anda compressed phase conductor.4. The power cable according to claim 1 , wherein the optical fiber is surrounded by at least one protective layer in form of a protective tube.5. The power cable according claim 1 , wherein the protective layer is formed from a plastic-gel combination and the plastic material is high density polyethylene.6. The power cable according to claim 1 , ...

MULTI-CORE CABLE

A multi-core cable includes a heat detection line including a twisted pair wire composed of a pair of heat detecting wires being twisted together, each of which includes a first conductor and a first insulator covering a periphery of the first conductor, a plurality of electric wires spirally twisted around the heat detection line, each of which includes a second conductor and a second insulator covering a periphery of the second conductor, and a sheath covering the heat detection line and the plurality of electric wires together. A melting point of the first insulator is lower than a melting point of the second insulator. The second conductor has a shape in a cross-section perpendicular to a cable longitudinal direction in which a width along a circumferential direction is gradually increased from a radially inward portion to a radially outward portion.

INDICATOR ACTIVATION OVER AN ALTERNATIVE CABLE PATH

A method is disclosed to identify a port that is associated with a faulty cable. In one embodiment, such a method identifies a cable to replace. The cable provides a path between a first port, residing on a first component, and a second port, residing on a second component. The method further identifies whether an alternative path, bypassing the first cable, exists between the first component and the second component. In the event the alternative path exists, the method sends, over the alternative path, from the first component to the second component, a command to activate an indicator on the second port. This command is received and executed by the second component to activate the indicator. A corresponding apparatus and computer program product are also disclosed. 1. A method to identify a port that is associated with a faulty cable , the method comprising:identifying a first cable to replace, the first cable providing a path between a first port and a second port, the first port residing on a first component and the second port residing on a second component;identifying whether an alternative path exists between the first component and the second component, the alternative path bypassing the first cable;in the event the alternative path exists, sending, over the alternative path, from the first component to the second component, a command to activate an indicator on the second port; andreceiving, by the second component, the command and executing the command to activate the indicator.2. The method of claim 1 , wherein the alternative path extends between a third port on the first component and a fourth port on the second component.3. The method of claim 1 , wherein the alternative path is provided by a second cable.4. The method of claim 1 , wherein the indicator is a light associated with the second port.5. The method of claim 1 , wherein the first component is a processor complex.6. The method of claim 5 , wherein the second component is an I/O enclosure.7. ...

OPTICAL FIBER BASED SENSING FOR SMART ELECTRICAL CABLES AND DISTRIBUTED RADIATION DETECTION

A cable device includes a sheath member, a number of electrical cables provided within the sheath member, and an optical fiber sensing member provided within the sheath member. The optical fiber sensing member includes a ftmctionalized optical fiber based sensor device structured to exhibit a change in one or more optical properties in response to changes in a parameter of interest. Also, a method of sensing radiation includes introducing a source light into an optical fiber sensing member provided within a structure, wherein the optical fiber sensing member comprises a functionalized optical fiber based sensor device structured to exhibit a change in one or more optical properties in response to radiation, detecting sensing light generated in response to the source light, and determining a radiation level at a plurality of locations within the structure using the detected sensing light and a distributed sensing scheme. 1. A cable device , comprising:a sheath member;a number of electrical cables provided within the sheath member; andan optical fiber sensing member provided within the sheath member, wherein the optical fiber sensing member comprises a functionalized optical fiber based sensor device structured to exhibit a change in one or more optical properties in response to changes in a parameter of interest.2. The cable device according to wherein the parameter of interest is a physical parameter.3. The cable device according to claim 2 , wherein the physical parameter is one of radiation claim 2 , temperature claim 2 , strain claim 2 , pressure and liquid level.4. The cable device according to claim 1 , wherein the parameter of interest is a chemical parameter.5. The cable device according to claim 1 , wherein the one or more optical parameters change responsive to gamma radiation.6. The cable device according to claim 5 , wherein the one or more optical parameters change responsive to gamma radiation from 1 Gy to greater than 10 claim 5 ,000 Gy.7. The cable ...

SYSTEMS AND METHODS FOR DETECTING LEAKAGE IN A CABLE NETWORK SYSTEM

Systems and methods for detecting leakage in a cable network system are disclosed. In at least some illustrative embodiments, a system may include a digital tagger operable to generate a digital tag including a chirp signal configured to be placed on a downstream signal path of the cable network system, and a cable network test instrument configured detect the digital tag in wireless signal data received from the cable network system when a point of ingress is presented in the cable network system. The network test instrument may be operable to provide a user-perceptible indication when the digital tag is detected to inform a technician or other user that a flaw in the cable network system is nearby.

OVERLAYER INTENDED TO COVER AN OBJECT, IN PARTICULAR A CABLE, IN ORDER TO DETECT AND/OR LOCATE A DEFECT ON THE SURFACE OF SAME

An overlayer intended to cover an object in order to detect a defect on a surface of the object, comprises an assembly made up of a plurality of current-conducting wire elements of different mechanical resistances and a means for insulating the conducting wire elements, each conducting wire element being arranged such as to at least partially cover a surface of the object when the overlayer covers the object, each conducting wire element being arranged to allow the connection thereof to a test device for detecting a defect affecting the conducting element. 1. An overlayer intended to cover an object in order to detect a defect on a surface of said object , comprising an assembly made up of a plurality of current-conducting wire elements of different mechanical resistances and a means for insulating said conducting wire elements , each conducting wire element being arranged such as to at least partially cover a surface of said object when the overlayer covers said object , each conducting wire element being arranged to allow the connection thereof to a test device for detecting a fault affecting said conducting element.2. The overlayer as claimed in wherein said assembly comprises at least a pair of current-conducting wire elements which are connected at one of the ends thereof by a short circuit or an electric load claim 1 , and are arranged such that a test signal can be injected at the other end of one of said elements of the pair.3. The overlayer as claimed in wherein the accuracy for detecting a defect at the surface of the overlayer is configured according to the spacing between two adjacent spires of the pair of conducting wire elements.4. The overlayer as claimed in wherein the mechanical resistance of a conducting wire element is configured according to the diameter of said element or to the thickness of the insulating means or to the type of material from which the conducting wire element is made up.5. The overlayer as claimed in wherein a conducting wire ...

Device for Detecting a Short Circuit, Protection Device and Associated Method for a High-Voltage Dc Network

A detection device for detecting a short circuit current in an electrical power transmission cable having an electrical power transmission cable for a high-voltage DC network. The network includes a central core, an insulating sheath, a metal screen arranged around the insulating sheath, at least one optical fibre, arranged between the electrically conductive central core and the metal screen by forming windings around the central core in a detection region, two optical transmitters arranged at the ends of the electrical power transmission cable, two optical detectors arranged at ends of the electrical power transmission cable, two interruption devices arranged at the ends of the electrical power transmission cable when a change in the angle of polarisation with respect to a reference angle greater than a predetermined value is detected by the first optical detector. 21921211717. The detection device () as claimed in claim 1 , wherein the first (A) or the second (B) switching device respectively is also configured to switch the connection of the electrical power transmission cable in the absence of receipt of an optical signal by the first optical detector (A) or by the second optical detector (B) respectively.3191515. The detection device () as claimed in claim 1 , wherein the first optical transmitter (A) is configured to transmit a signal at a first wavelength claim 1 , and the second optical transmitter (B) is configured to transmit a signal at a second wavelength different from the first wavelength.419. The detection device () as claimed in claim 1 , also comprising:{'b': 23', '1', '1', '1, 'a first current detector (A) arranged at the first end (A) of the electrical power transmission cable () and configured to detect an electrical fault signal transmitted by the electrical power transmission cable (),'}{'b': 27', '1', '1', '17', '23, 'a first processing unit (A) arranged at the first end (A) of the electrical power transmission cable () and coupled to the ...

IN-VEHICLE POWER SUPPLY STRUCTURE

An in-vehicle power supply structure, in which a vehicle is divided into a plurality of zones and a power supply hub for connecting an electronic device is provided in each of the zones, includes a break detection wire routed along a power supply wire, for detecting damage to the power supply wire caused by an external force acting on the vehicle by its own damage. Both ends of the break detection wire are connected to power supply hubs placed adjacent to each other. 1. An in-vehicle power supply structure in which a vehicle is divided into a plurality of zones , a power supply hub for connecting an electronic device is provided in each of the zones , and the power supply hubs are connected through power supply wires , the structure comprising:a break detection wire routed along the power supply wires, for detecting damage to the power supply wires caused by an external force acting on the vehicle by its own damage, whereinthe break detection wire is configured to connect the power supply hubs placed adjacent to each other.2. The in-vehicle power supply structure of claim 1 , whereinthe break detection wire is provided along a ring-shaped power supply wire formed by connecting the power supply wires in a ring.3. The in-vehicle power supply structure of claim 1 , whereinthe break detection wire is formed to be more brittle than the power supply wires. The technology disclosed herein belongs to a technological field related to an in-vehicle power supply structure in which power supply hubs are connected through a power supply wire.In recent years, motorization of in-vehicle equipment is prominent: a number of electronic devices are placed in a vehicle. With this situation, the configuration of power supply to such electronic devices has been examined.For example, Patent Document 1 discloses an in-vehicle communication system in which a gateway ECU for relaying communications between ECUs in different networks is provided, and only a network including a target ECU to ...

Cable Comprising an Element Indicating Water Infiltration and Method Using Said Element

A cable includes an indicating element for detecting the infiltration of water into the cable and a method using such indicating element.

POWER CORD FOR USE WITH A LEAKAGE CURRENT DETECTION AND INTERRUPTION DEVICE

A power supply cord for use with a leakage current detection and interruption device, including at least two power supply lines, at least two insulating layers respectively covering the at least two power supply lines, at least two shield lines respectively covering the at least two insulating layers, and at least one insulating structure covering at least one of the at least two shield lines to electrically insulate the at least two shield lines from each other. By providing the insulating structure outside of at least one of the shield lines, the shield lines of different power supply lines are independent of each other, so that the shield lines can better detect leakage currents in the power supply lines. 1. A power supply cord for use with a leakage current detection and interruption device , comprising:at least two power supply lines;at least two insulating layers respectively covering the at least two power supply lines;at least two shield lines respectively covering the at least two insulating layers; andat least one insulating structure covering at least one of the at least two shield lines to electrically insulate the at least two shield lines from each other.2. The power supply cord of claim 1 , wherein the at least one insulating structure and the corresponding at least one of the at least two shield lines are formed of a one-sided insulating material claim 1 , which is a sheet material that is electrically conductive on one side and electrically insulating on an opposite side.3. The power supply cord of claim 1 , wherein the at least two shield lines are formed of woven structures made of a conductive material.4. The power supply cord of claim 1 , wherein the at least two shield lines are formed of metal foil covers.5. The power supply cord of claim 1 , wherein the at least two shield lines are wound structures formed of one or more metal wires.6. The power supply cord of claim 1 , wherein the at least one insulating structure is made of a plastic ...

Covered Wire, Covered Wire With Terminal, Wire Harness And Method Of Manufacturing Covered Wire

A covered wire includes a wire including a metal, a covering layer provided at a periphery of the wire, and inclusions including at least one of a metal and a metal oxide. The inclusions are provided between the wire and the covering layer or in the covering layer, and an average size of each of the inclusions is less than a thickness of the covering layer. 1. A covered wire comprising:a wire comprising a metal;a covering layer provided at a periphery of the wire; andinclusions comprising at least one of a metal and a metal oxide, the inclusions being provided between the wire and the covering layer or in the covering layer, an average size of each of the inclusions being less than a thickness of the covering layer.2. The covered wire according to claim 1 , wherein the average size of each of the inclusions in a thickness direction of the covering layer is less than or equal to ½ of the thickness of the covering layer.3. The covered wire according to claim 1 , wherein a number density of the inclusions is 1 particle/mmto 3000 particles/mm.4. The covered wire according to claim 1 , wherein the inclusions comprises a metal material that is the same as that of the wire.5. The covered wire according to claim 1 , wherein the inclusions have an average reflectivity of greater than or equal to 70% for visible light.6. The covered wire according to claim 1 , wherein the wire is a stranded wire comprising a plurality of individual wires stranded together.7. The covered wire according to claim 1 , wherein the wire is a compressed stranded wire.8. A covered wire with terminal claim 1 , comprising:a covered wire; anda terminal fitted to an end portion of the covered wire,the covered wire including a wire comprising metal, a covering layer provided on a periphery of the wire, and inclusions comprising at least one of a metal and a metal oxide, the inclusions being disposed between the wire and the covering layer or in the covering layer, an average size of each of the inclusions ...

Protection and fault detection for high voltage power lines on aircraft

A high voltage conductor for transmitting high voltage is provided. The high voltage conductor includes a power wire, a fault detection unit, and a monitoring unit. The power wire is configured for transmission of electrical energy. The fault detection unit is configured for detecting an electromagnetic field emanated by the power wire, and the monitoring unit is configured for detection of degradation in an isolation of the high voltage conductor. The monitoring unit is connected to the fault detection unit and is configured to receive an electrical signal induced in the fault detection unit, which electrical signal is induced as a result of a degradation of the isolation of the high voltage conductor. Thus, degradation of the isolation of the high voltage conductor may be recognized at an early stage.

Leading/lagging cable referencing platform for monitoring the health of underground cable networks

A system for detecting water trees in branching underground electrical cables includes a pulse generator configured to inject a pulse into a first underground cable that branches into a second underground cable and a third underground cable. The system includes a first sensor associated with the first cable, a second sensor associated with the second cable, and a third sensor associated with the third cable. The system includes a control device configured to obtain a first, second, and third signal associated with the first, second and third sensors, respectively. The control device determines a lead-lag relationship between the second and third signals and determines presence of a water tree within at least one of the second and third cable based on the lead-lag relationship. When presence of a water tree is determined, the control device generates a control action associated with repairing or replacing the second and/or third cable.

LEAKAGE DETECTION CABLE AND METHOD FOR MANUFACTURING SAME

The present invention provides a leakage detection cable and a method for manufacturing the same, and the leakage detection cable detects a leaking liquid and includes: an electric wire core which includes one or more conductive wires, and a sheath layer that covers the one or more conductive wires; a detection unit which is coupled in a longitudinal direction of a surface of the electric wire core; and a first braided layer which is braided with non-conductive fibers and covers the detection unit, in which the detection unit has a predetermined resistance value that is proportional to a length, and reacts with the liquid such that an output electric current value is changed. 1. A leakage detection cable which detects a leakage of a liquid , the leakage detection cable comprising:an electric wire core which includes one or more conductive wires, and a sheath layer that covers the one or more conductive wires;a detection unit which is coupled in a longitudinal direction of a surface of the electric wire core; anda first braided layer which is braided with non-conductive fibers and covers the detection unit,wherein the detection unit has a predetermined resistance value that is proportional to a length, and reacts with the liquid such that an output electric current value is changed.2. The leakage detection cable of claim 1 , further comprising:a second braided layer which is braided with a fiber made of a conductive material and surrounds the one or more conductive wires to shield the one or more conductive wires.3. The leakage detection cable of claim 1 , wherein the sheath layer is braided with the non-conductive fibers.4. The leakage detection cable of claim 1 , further comprising:a non-woven fabric which is made of a material having absorptiveness in respect to the detection target liquid and surrounds the detection unit.5. The leakage detection cable of claim 1 , wherein the detection unit includes one or more detection lines manufactured by cutting a film made ...

SYSTEMS AND METHODS FOR DETECTING LEAKAGE IN A CABLE NETWORK SYSTEM

Systems and methods for detecting leakage in a cable network system are disclosed. In at least some illustrative embodiments, a system may include a digital tagger operable to generate a digital tag including a chirp signal configured to be placed on a downstream signal path of the cable network system, and a cable network test instrument configured detect the digital tag in wireless signal data received from the cable network system when a point of ingress is presented in the cable network system. The network test instrument may be operable to provide a user-perceptible indication when the digital tag is detected to inform a technician or other user that a flaw in the cable network system is nearby. 1. A system for detecting leakage in a cable network system , the system comprising:a digital tagger operable to generate a digital tag including a chirp signal configured to be placed on a downstream signal path of the cable network system, anda cable network test instrument configured detect the digital tag in wireless signal data received from the cable network system when a point of ingress is presented in the cable network system,wherein the network test instrument is operable to provide a user-perceptible indication when the digital tag is detected to inform a technician or other user that a flaw in the cable network system is nearby.2. The system of claim 1 , wherein the cable network test instrument includes a signal level meter operable to detect the chirp signal.3. The system of claim 1 , wherein the user-perceptible indication includes a visual indication or audible indication.4. A cable network test instrument comprising:circuitry operable to detect a chirp signal present in wireless signal data received from the cable network system when a point of ingress is presented in the cable network system, andcircuitry operable to provide a user-perceptible indication when the digital tag is detected to inform a technician or other user that a flaw in the cable ...

SYSTEMS AND METHODS FOR TAMPER PROOF CABLES

Systems and methods for tamper proof cables are described herein. In certain implementations, a system includes one or more pieces of equipment and one or more tamper proof cables connecting the equipment within a network. A tamper proof cable includes a core that provides a transmission medium through the cable; an insulator enveloping the core; a first conductive braid encircling the insulator; a dielectric enveloping the first conductive braid; and a second conductive braid encircling the dielectric, the first and second conductive braids, and the dielectric forming a capacitor. The system includes one or more detectors, each detector coupled to the tamper proof cables, each detector and an associated capacitor forming a tuned circuit, the detectors providing a signal when an associated portion of the tamper proof cables is tampered with; a monitor coupled to the detectors that notifies an infrastructure management system when the signal is received. 1. A tamper proof cable , the tamper proof cable comprising:a core, the core providing a transmission medium through the cable;an insulator enveloping the core;a first conductive braid encircling the insulator;a dielectric enveloping the first conductive braid; anda second conductive braid encircling the dielectric.2. The tamper proof cable of claim 1 , wherein the first conductive braid is oriented in a first direction and the second conductive braid is oriented in a second direction claim 1 , the second direction being orthogonal to the first direction.3. The tamper proof cable of claim 1 , wherein the first conductive braid claim 1 , the dielectric claim 1 , and the second conductive braid form a capacitor in a tuned circuit.4. The tamper proof cable of claim 3 , further comprising one or more detectors claim 3 , wherein the tuned circuit is connected to the one or more detectors.5. The tamper proof cable of claim 3 , wherein the tuned circuit is coupled to a first side of the tamper proof cable claim 3 , wherein ...

CABLE WITH INTEGRAL SENSING ELEMENTS FOR FAULT DETECTION

Disclosed herein are cable systems that include a cable defining a sensing path and comprising a working strand and one or more sensing strands, a signal source to impart a test signal between a first terminal and a second terminal, a sensor to detect the test signal, a transmitter to transmit the test signal to a receiver, and an indicator to generate a display indicative of the test signal. Certain preferred embodiments describe sensing strands that are arranged in alternating concentric layers and/or extend lengthwise in loops. Such configurations facilitate the detection of breakage, insults, excess tension, or excess bending in the cable. The sensing strands may include a fixed resistor to establish a known resistance and facilitate the detection of small resistive changes.

INTELLIGENT LEAKAGE CURRENT DETECTION AND INTERRUPTION DEVICE FOR POWER CORD

An intelligent leakage current detection and interruption device for a power cord, including a switch module configured to control electrical connection of first and second power lines between input and output ends; a leakage current detection module, including first and second leakage current detection lines coupled in series, configured to detect a leakage current on the first and second power lines, respectively; a detection monitoring module, coupled in series to the first and second leakage current detection lines and to the first and second power lines, configured to detect an open circuit condition in the first or second leakage current detection line; and a drive module, coupled to the switch module, the leakage current detection module and the detection monitoring module, configured to drive the switch module to cut off power to the output end in response to any detected leakage current or open circuit condition. 1. An intelligent leakage current detection and interruption device for a power cord , comprising:a first power line and a second power line, each having a power input end and a power output end;a switch module, configured to control an electrical connection of the first and second power lines between the power input end and the power output end;a leakage current detection module, including a first leakage current detection line and a second leakage current detection line coupled in series, and configured to detect whether a leakage current is present on the first power line and the second power line, respectively;a detection monitoring module, coupled in series to the first and second leakage current detection lines and to the first and second power lines, and configured to detect whether an open circuit condition is present in the first or second leakage current detection line; anda drive module, coupled to the switch module, the leakage current detection module and the detection monitoring module, and configured to drive the switch module to cut ...

A method and a device for preparing a cylindrical body unter wihch cables for detceting braeage were layed

본 발명은 파손감지 케이블이 매설된 원통체의 제조 방법 및 그 제조 장치에 관한 것으로, 보다 상세하게는 소정 두께의 수지 원통체의 내부에 파손감지 케이블을 보다 용이하게 매설할 수 있을 뿐만 아니라 파손감지 케이블의 저항을 줄여 원통체의 길이를 길게 할 수 있는 파손감지 케이블이 매설된 원통체의 제조 방법 및 그 제조 장치에 관한 것이다. The present invention relates to a method for manufacturing a cylindrical body in which a damage sensing cable is embedded, and to a device for manufacturing the same. More particularly, the damage sensing cable can be easily embedded in a resin cylindrical body having a predetermined thickness. The present invention relates to a method for manufacturing a cylindrical body in which a failure detecting cable is embedded, which can reduce the resistance of a cable and lengthen the length of the cylindrical body. 본 발명에 따른 파손감지 케이블이 매설된 원통체의 제조 방법은, 수지를 압출하여 단면으로 보아 원형의 외주면을 갖는 제1수지피복층을 압출 성형하는 제1압출성형단계와, 상기 제1수지피복층의 외주면에 길이 방향으로 길게 연장되어 서로 평행하고 원주방향으로 일정한 간격을 갖도록 복수의 파손감지 케이블을 배열하는 케이블배열단계와, 상기 제1수지피복층과 열융착되는 수지를 압출하여 상기 파손감지 케이블을 덮을 수 있는 두께로 상기 제1수지피복층의 외주면을 감싸 상기 제1수지피복층과의 접촉되는 면이 열융착되도록 제2수지피복층을 압출하여 성형하는 제2압출성형단계를 포함하는 것을 특징으로 한다. According to the present invention, there is provided a method of manufacturing a cylindrical body in which a damage detecting cable is embedded, the first extrusion molding step of extruding a resin and a first resin coating layer having a circular outer circumferential surface in a cross-sectional view, and the first resin coating layer. A cable arrangement step of arranging a plurality of breakage detection cables so as to extend in the longitudinal direction on the outer circumferential surface so as to be parallel to each other and have a constant distance in the circumferential direction, and to extrude the resin that is thermally fused with the first resin coating layer to cover the breakage detection cable; And a second extrusion molding step of extruding and molding the second resin coating layer to surround the outer circumferential surface of the first resin coating layer to a thickness that may be in contact with the first resin coating ...

Universal electrical cable

FIELD: electricity.SUBSTANCE: present invention relates to electric cables for various purposes, in which cable length measurement is required. Universal electric cable comprises main current conductor (1), additional current conductor (3, 3a, 3b) and insulating layer (2, 4, 5). As additional conductive conductor there used is conductor with resistance at least by one order higher than resistance of main current-conducting conductor, namely from 0.1 to 2 Ohm/m.EFFECT: higher accuracy, simplification of measurement of cable length, including in laid position in curvilinear plane for considerable distance.8 cl, 1 tbl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 727 180 C1 (51) МПК H01B 7/32 (2006.01) G01R 27/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК H01B 7/32 (2020.02) (21)(22) Заявка: 2020105263, 05.02.2020 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ГаммаСвисс СА (CH) Дата регистрации: 21.07.2020 Приоритет(ы): (30) Конвенционный приоритет: 16.08.2019 EP 19192170.9 (45) Опубликовано: 21.07.2020 Бюл. № 21 2 7 2 7 1 8 0 R U (54) УНИВЕРСАЛЬНЫЙ ЭЛЕКТРИЧЕСКИЙ КАБЕЛЬ (57) Реферат: Настоящее изобретение относится к используется проводник с сопротивлением, по электрическим кабелям различного назначения, меньшей мере, на порядок выше сопротивления в которых требуется измерение длины кабеля. основного токопроводящего проводника, а Универсальный электрический кабель содержит именно от 0,1 до 2 Ом/м. Достигается повышение основной токопроводящий проводник (1), точности, упрощение измерения длины кабеля, в дополнительный токопроводящий проводник (3, том числе в уложенном положении в 3а, 3b) и изоляционный слой (2, 4, 5). В качестве криволинейной плоскости на значительное дополнительного токопроводящего проводника расстояние. 3 н. и 5 з.п. ф-лы, 1 табл., 5 ил. Стр.: 1 C 1 C 1 Адрес для переписки: 141008, Московская обл., г. Мытищи, Проектируемый пр-д 5274, стр. 7, для ...

Insulation for monitoring sign of electrical fire and manufacturing method thereof

본 발명은 주재료인 합성수지를 포함하고, 부재료인 부취제 또는 열변색 고분자를 포함하는 것을 특징으로 하는 전기화재 징후 감시용 절연재 및 그 제조방법을 개시한다. The present invention discloses an insulating material for monitoring electrical fire signs, characterized in that it contains a synthetic resin as a main material, and an odorant or thermochromic polymer as an auxiliary material, and a method for manufacturing the same.

A kind of high voltage power cable comprehensive state amount monitoring technology method

本发明公开了一种高压电力电缆综合状态量监测技术方法，包括GIS端、电力电缆、架空线端、电流传感器、信号调理单元、信号滤波及A/D转换单元、单片机数据采集处理单元、显示器、RS485通信和后台微机处理诊断系统，所述电力电缆的两端分别与所述GIS端以及所述架空线端电性连接，所述GIS端通过所述电流传感器接地，所述电流传感器与所述信号调理单元电性连接，所述信号调理单元与所述信号滤波及A/D转换单元电性连接，信号滤波及A/D转换单元与单片机数据采集处理单元电性连接，所述单片机数据采集处理单元与所述显示器电性连接，所述单片机数据采集处理单元通过所述RS485通信与所述后台微机处理诊断系统双向电性连接，实现对电力电缆的综合状态的实时监测。

Power cord with a leakage current detection conductor

A power cord with leakage current detection function includes three copper wires for carrying power and at least one leakage current detection conductor for detecting leakage current. Each copper wire is surrounded by an insulating layer. At least two of the insulating layers are each surrounded by a metal conductive layer. The leakage current detection conductor is adjacent and in electrical contact with the two metal conductive layers. An outer insulating layer encloses the three wires and the leakage current detection conductor. The metal conductive layers are made of a thin copper foil, tin foil, aluminum foil, or conductive rubber. The leakage current detection conductor may be formed of copper wires or aluminum wires. Such a power cord provides low cost and reliability, and can quickly and accurately detect leakage current in the cord.

Power cord with a leakage current detection conductor

A power cord with leakage current detection function includes three copper wires for carrying power and at least one leakage current detection conductor for detecting leakage current. Each copper wire is surrounded by an insulating layer. At least two of the insulating layers are each surrounded by a metal conductive layer. The leakage current detection conductor is adjacent and in electrical contact with the two metal conductive layers. An outer insulating layer encloses the three wires and the leakage current detection conductor. The metal conductive layers are made of a thin copper foil, tin foil, aluminum foil, or conductive rubber. The leakage current detection conductor may be formed of copper wires or aluminum wires. Such a power cord provides low cost and reliability, and can quickly and accurately detect leakage current in the cord.

Twisted leak detection cable

Disclosed is a leak detection cable that has an outer jacket layer and a four wire construction in a flat wire configuration that is twisted in a helix. Detection cables are disposed on the exterior surface adjacent openings of the jacket to allow for detection of aqueous fluids. The wire is twisted in a helix to allow adjacent detector wires to easily detect aqueous fluids. Disparate materials are used for the jacket and the coatings of the wires, to allow the jacket to be easily removed from the wires without affecting the integrity of the coatings of the wires. The four flat wire configuration is sized and spaced for easy connection to an insulation displacement connector.

Alarm device to prevent accidental excavation of buried power cables

本発明に係る埋設電力ケーブルが間違って掘削されることを防止する警報装置は、モード識別機能を備える光ファイバー振動センサー、信号処理ユニット、無線通信ユニットおよび給電ユニットを含み、前記信号処理ユニットは、光ファイバー振動センサー、無線通信ユニットおよび給電ユニットにそれぞれ接続されており、前記光ファイバー振動センサーは、電力ケーブル周囲の振動信号をリアルタイムでモニタリングできるように電力ケーブルから一定の範囲内に設置されており、電力ケーブルの安全を脅かす行為があった途端、すばやく警報でき、送変電事故を減らせる。従来の技術と比べると、本発明は、誤警報が少なく、応答が早く、区間の定位が正確である利点を有する【選択図】図１

Superconducting power-cable capable of quench detection and quench detection apparatus using the same

본 발명은 퀀치 검출이 가능한 초전도 전력 케이블 및 이를 이용한 퀀치 검출 장치에 관한 것이다. 본 발명에 따른 퀀치 검출이 가능한 초전도 전력 케이블은, 포머; 초전도 선재로 구성되어 상기 포머를 둘러싸는 초전도 도체층; 상기 포머와 상기 초전도 도체층 사이에 개재되어 상기 포머를 둘러싸는 광섬유로 이루어진 도체층 퀀치 검출 코일; 상기 초전도 도체층을 둘러싸는 절연층;및 상기 절연층을 둘러싸는 차폐층;을 포함한다. 본 발명에 따르면, 초전도 전력 케이블의 운용중에 발생하는 퀀치를 실시간으로 검출할 수 있다. 퀀치, 초전도 전력 케이블, 코일, 차폐층

Supply line and method for monitoring a supply line

In order to create a supply line (K), where the reliability and availability of a supply connection to a corresponding consumer is increased relative to the prior art, at least one optical sensor (S1) is integrated in the supply line (K), by means of which sensor at least one variable representing a physical state in the vicinity of the optical sensor (S1) can be determined.

Corrosion-resistant resistance to compression type high strength deep sea cable

本发明公开了一种耐腐蚀的抗压型高强度深海电缆，包括外防护层、固定件、电缆内芯、预设气腔、输气通道、抵触块和导向槽，所述外防护层的内侧开设有第一限位槽，且外防护层的内端粘接连接有耐腐蚀层，所述耐腐蚀层的外表面固定连接有安装块，且安装块与第一限位槽的内端相连接，所述耐腐蚀层的内端贯穿安装有固定件。该耐腐蚀的抗压型高强度深海电缆，通过组合嵌套安装的3层耐腐蚀层、外防护层和粘接层支撑结构，有效的加强了电缆的厚度与支撑强度，同时待电缆长期使用受磨损时，根据色差不同的耐腐蚀层、外防护层和粘接层的颜色展露状态，让使用者及时得知单段电缆的磨损程度，从而及时对损坏的部分电缆进行更换工作。

Antitheft alarming cable based on Internet of Things

本发明公开了一种基于物联网的防偷报警电缆线，包括电缆线本体，电缆线本体包括内护套层、编制加强层和外护套层，内护套层内包括两两互为紧靠的A相线、B相线和C相线，A相线、B相线和C相线均包括铜线、铜线外包裹的绝缘层和绝缘层外包裹的半导电层，A相线和B相线之间设有零线、A相线和C相线之间设有低压切断报警线以及低压切断报警线外包裹的绝缘层，B相线和C相线之间设有一股光纤以及光纤外包裹的绝缘层，通过增加一股低压电线，低压电线与整个线路组织成回路，无论是在通电情况下还是断电情况下都可以监测电缆是否被偷盗，无论距离多远都可以监测到电缆是否被偷盗，解决了现有电缆线远距离无法监测或者必须通电才可监测的缺陷。

Method of manufacture of thermal responsive sensor cables

FIELD: test and measurement equipment.SUBSTANCE: invention relates to a method of manufacturing thermal responsive sensor cables with semiconductor oxide fillers, used for temperature monitoring in aviation emergency systems and for monitoring and protecting various power plants of industrial enterprises. Method includes filling the coaxial metal preform with polycrystalline fillers, cold mechanical pressing, multiple drawing of the billet through a series of spinnerets with periodic heat treatments, while the oxide phases of solid solutions or complex oxides capable of decaying during process heat treatments with increasing number of polycrystals are used as fillers.EFFECT: invention provides an increase in the uniformity of the electrophysical characteristics of fillers of sensor cables and reduces the proportion of rejects that occur when there are significant deviations in the electrophysical characteristics from the specified ones.5 cl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 662 790 C1 (51) МПК H01B 7/32 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК H01B 7/324 (2006.01) (21)(22) Заявка: 2017112745, 13.04.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 31.07.2018 (45) Опубликовано: 31.07.2018 Бюл. № 22 Адрес для переписки: 119454, Москва, пр-т Вернадского, 78, РТУ МИРЭА, отдел защиты интеллектуальной собственности (73) Патентообладатель(и): Федеральное государственное бюджетное образовательное учреждение высшего образования "МИРЭА - Российский технологический университет" (RU) (56) Список документов, цитированных в отчете о поиске: SU 1072109 A1, 07.02.1984. SU 2 6 6 2 7 9 0 R U (54) СПОСОБ ИЗГОТОВЛЕНИЯ ТЕРМОЧУВСТВИТЕЛЬНЫХ КАБЕЛЕЙ-ДАТЧИКОВ (57) Реферат: Изобретение относится к способу фильер с периодическими термообработками, изготовления термочувствительных кабелейпри этом в качестве наполнителя используются датчиков с полупроводниковыми оксидными оксидные фазы твердых ...

Cable with abnormality sign detection function and electric wire abnormality sign detection device

【課題】電線に断線が生じる予兆を、電線の軸線方向に沿った位置によらず、同様の感度で検知することができる異常予兆検知機能付ケーブル、および電線異常予兆検知装置を提供する。【解決手段】電線導体２１Ａ～Ｄと、前記電線導体２１Ａ～Ｄの外周を被覆する電線被覆２２と、を有する１本または複数の対象電線２Ａ～Ｄと、検知線導体３１Ａ～Ｃと、前記検知線導体３１Ａ～Ｃの外周を被覆する検知線被覆３２と、を有する１本または複数の検知線３Ａ～Ｃと、前記対象電線２Ａ～Ｄおよび前記検知線３Ａ～Ｃを含む電線群Ｇの外周を被覆するシース５と、を有し、前記検知線導体３１Ａ～Ｃは、前記電線導体２１Ａ～Ｄよりも、耐屈曲性が低く、前記シース５は、前記電線群Ｇの外周に直接密着するか、前記電線群Ｇの外周に密着して前記電線群Ｇを被覆する内周層４の表面に密着した、押出成形体として形成されている、異常予兆検知機能付ケーブル１とする。【選択図】図１

Improvements to heat sensitive electric cables

Patent FR2529373B1

FLEXIBLE ELECTRIC CABLE, PARTICULARLY FOR THE ELECTRICAL SUPPLY OF HARVESTERS.

Cable for transporting medium- and high-voltage energy with device for detecting that a temperature has been exceeded, and use of such a cable

La présente invention concerne un câble de transport d'énergie à moyenne et haute tension permettant la détection de dépassements de température dans une liaison câblée. Ce câble comporte au moins un conducteur central (10), au moins une couche d'isolant (13) coaxiale à ce conducteur central, au moins un écran métallique (31) coaxial à la couche d'isolant, une gaine extérieure (19) entourant cet écran métallique et éventuellement une protection mécanique. L'écran métallique (31) est réalisé en fils de cuivre nu (32) en forme de méplats juxtaposés pour constituer une couche continue. Une fibre optique à seuil de température (21) est incrustée à cet écran et placée entre deux fils ronds disposés de part et d'autre de cette fibre. Des coussins (30, 34) assurent l'étanchéité longitudinale et la protection mécanique et thermique de cette fibre (21). Ce câble permet de prévenir les défaillances inopinées dans des liaisons câblées et de renforcer la sécurité dans l'exploitation des réseaux électriques.

Electric cable with temperature control device

Flexible electric cable especially for the power supply of shearers.

a) Câble électrique souple notamment pour l'alimentation électrique de haveuses. b) Câble caractérisé en ce que la gaine intérieure (9) est conductrice et les autres brins (3) sont munis d'un câblage de cordons de cuivre (conducteurs, protecteurs) et d'une gaine conductrice appliquée sur cette tresse et en ce que de manière connue, entre le conducteur d'énergie et la gaine isolante (12) des brins conducteurs d'énergie (2) on a comme séparateur une toison (12a) reliée par une liaison par la matière à la matière de la gaine isolante (12) et/ou la matière de la gaine intérieure (9) est en un élastomère polymérisé et ayant une plasticité résiduelle lui permettant de se déformer, la tresse (10) pouvant pénétrer dans la gaine intérieure (9) sous l'effet de contraintes d'écrasement ou de choc. a) Flexible electric cable, in particular for supplying power to shearers. b) Cable characterized in that the inner sheath (9) is conductive and the other strands (3) are provided with a cabling of copper cords (conductors, protectors) and a conductive sheath applied to this braid and in this that in a known manner, between the energy conductor and the insulating sheath (12) of the energy conducting strands (2) there is as separator a fleece (12a) connected by a connection by the material to the material of the insulating sheath (12) and / or the material of the inner sheath (9) is in a polymerized elastomer and having a residual plasticity allowing it to deform, the braid (10) being able to penetrate into the inner sheath (9) under the effect of crushing or impact stresses.

Measuring arrangement and temperature-measuring method, and sensor cable for such a measuring arrangement

为了能够利用尽可能简单地构造的传感器缆线(4)实现温度测量，构造出测量装置(2)，其具有第一信号导体(10a)、用于将测量信号(S)馈入信号导体(4)的馈入单元(6)以及评估单元(8、8ˊ)，其被构造成用于获知和评估由于依赖于温度的第一介电常数的由温度导致的变化造成的测量信号(S)的信号传输时间的变化以及用于从所获知的信号传输时间推导出温度信号(T)。此外，第一信号导体(10a)与第二信号导体(10b)形成传感器缆线(4)，这两个信号导体(10a、10b)分别由绝缘件(16)包围，其在第一信号导体(10a)中由具有第一介电常数的第一材料(14a)制成，而在第二信号导体(10b)中由具有第二介电常数的不同于第一材料(14a)的第二材料(14b)制成。此外，馈入单元(6)被构造成用于将测量信号(S)并行馈入两个信号导体(10a、10b)中，并且评估单元(8、8ˊ)被构造成用于评估馈入两个信号导体(10a、10b)中的测量信号(S)的传输时间差(Δt)。具有评估单元(8、8ˊ)和传感器缆线(4)的测量装置(2)在用于保护尤其是车载电网内的缆线的方法中得到使用。

CABLE AND ITS MONITORING SYSTEM

CABLE COMPRISING DETECTION MEANS FOR DETECTING THE PRESENCE OF AN ELECTRICALLY CONDUCTIVE BODY OUTSIDE THE CABLE

La présente invention concerne un câble comprenant une gaine extérieure (3) électriquement isolante, et des moyens de détection comprenant au moins un premier et un deuxième éléments électriquement conducteurs (4a, 5a ; 4b, 5b), lesdits moyens de détection étant aptes à détecter la présence d'un corps électriquement conducteur extérieur au câble en contact avec les deux éléments électriquement conducteurs, caractérisé en ce qu'au moins un des éléments électriquement conducteurs (4a, 5b) est en contact avec la surface externe de la gaine extérieure (3). The present invention relates to a cable comprising an electrically insulating outer sheath (3), and detection means comprising at least a first and a second electrically conductive element (4a, 5a; 4b, 5b), said detection means being able to detect the presence of an electrically conductive body outside the cable in contact with the two electrically conductive elements, characterized in that at least one of the electrically conductive elements (4a, 5b) is in contact with the outer surface of the outer sheath (3 ).

Apparatus for sensing vehicles battery cable breakage

본 발명은 차량용 배터리 케이블에 관한 것으로서, 전류를 도통시키는 심선, 심선을 감싸는 내피, 배터리 케이블을 감싸면서 파손 감지장치와 연결되는 도체 및 도체를 감싸는 외피를 포함하는 것을 특징으로 한다. The present invention relates to a battery cable for a vehicle, characterized in that it comprises a core wire for conducting current, an inner shell surrounding the core wire, a conductor wrapped around the battery cable and an outer shell surrounding the conductor connected to the breakage detection device.

Insulated electric cable

Surveillance system for telecommunication cable includes module integrated into cable, deriving power from cable and transmitting monitoring data

The cable includes surveillance devices (4) distributed along its length. Each surveillance device includes a sensor (7) for collecting data (D) from the cable, and a circuit (8) for transmitting this data by radio. A supply circuit (9) derives power from an inductive coupling with the cable. The signal transport cable includes several surveillance devices (4) distributed along the length of the cable (1). Each surveillance device is miniaturized on a substrate and integrated into the cable. It includes a sensor (7) for collecting at least one item of data (D) which is intrinsic to the cable, and a circuit (8) for transmitting this data, combined with identifying data (ID) relating to the specific device, by radio. A supply circuit (9) provides a direct voltage (Vd) for both the sensing component and the transmitting component. This may derive power from an inductive coupling with at least one conductor element included within the cable and carrying an alternating current.

ELECTRIC CABLE EQUIPPED WITH ANTI-THEFT DEVICE

L'invention concerne un câble électrique comportant au moins un conducteur (1A, 1 B) entouré d'une couche isolante (7). Selon l'invention, au moins un capteur inductif (3A, 3B) est disposé autour de ladite couche isolante (7) et est connecté électriquement à au moins un module électronique de gestion et de communication (4A, 4B). The invention relates to an electric cable comprising at least one conductor (1A, 1B) surrounded by an insulating layer (7). According to the invention, at least one inductive sensor (3A, 3B) is arranged around said insulating layer (7) and is electrically connected to at least one electronic management and communication module (4A, 4B).

INSULATED CABLE FOR THE TRANSPORT OF ELECTRICAL ENERGY, PARTICULARLY AT HIGH VOLTAGE

IL COMPORTE, NOYE DANS LE CABLE ET SUR TOUTE SA LONGUEUR, AU MOINS UN ELEMENT 9, 10 SENSIBLE A UNE VARIATION D'UN PARAMETRE TEL QUE LA TEMPERATURE ET LE DEGRE D'HUMIDITE ET QUI EST RACCORDABLE, AUX EXTREMITES DU CABLE, A UN MOYEN DE DETECTION OU DE MESURE DU PARAMETRE. L'ELEMENT 9, 10 SENSIBLE AU PARAMETRE EST, PAR EXEMPLE, UNE FIBRE OPTIQUE. IT CONTAINS, FLOODED IN THE CABLE AND OVER ITS LENGTH, AT LEAST ONE ELEMENT 9, 10 SENSITIVE TO A VARIATION OF A PARAMETER SUCH AS THE TEMPERATURE AND THE DEGREE OF HUMIDITY AND WHICH IS CONNECTED, AT THE ENDS OF THE CABLE, TO A MEANS OF DETECTION OR MEASUREMENT OF THE PARAMETER. PARAMETER SENSITIVE ELEMENT 9, 10 IS, FOR EXAMPLE, AN OPTICAL FIBER.

Conductive via structure and wire harness

导电通路结构（81）包括：导体（82），该导体包括通过易切断部（84）而彼此连接的第一导电部和第二导电部；和绝缘构件（83），该绝缘构件直接或间接地覆盖易切断部（84）。当由于施加到易切断部（84）的冲击，易切断部（84）被切断以便将第一导电部与第二导电部彼此分开时，绝缘构件（83）构造成覆盖分开的第一导电部和第二导电部。

High-strength high voltage transmission power cable

本发明公开了高强度高压输电电力电缆，包括3根导体、导体屏蔽层、绝缘层、保护层；导体屏蔽层设置在导体的外部，绝缘层设置在导体屏蔽层的外部，3根导体设置于保护层内；还包括圆柱形固定装置，圆柱形固定装置位于保护层内；所述的圆柱形固定装置的侧面等间距设置有3个圆弧形凹槽；所述的3根导体分别位于圆弧形凹槽；所述的导体、圆柱形固定装置、保护层之间形成的空腔填充绝缘填充物；还包括远端断点检测单元、N个终端断点检测单元；所述的N个终端断点检测单元等间距设置于高强度高压输电电力电缆线路上。本发明的电力电缆不会出现摩擦导致的短路问题；电力电缆一旦出现断路问题，可以很快判断出断路点，并且线芯硬度高，电阻率低。

Cable comprising an element indicating water infiltration and method using said element

The present invention relates to a cable comprising an indicating element for detecting the infiltration of water into the cable and to a method using such indicating element.

Superconducting power cable capable of quench detection and quench detection system using the same

本発明は、クエンチ検出が可能な超伝導電力ケーブル及びこれを用いたクエンチ検出システムに関するものである。本発明によるクエンチ検出が可能な超伝導電力ケーブルは、フォーマー、超伝導線材から構成され上記フォーマーを包む超伝導導体層、上記フォーマーと上記超伝導導体層との間に介在され上記フォーマーを包む光ファイバーからなる導体層クエンチ検出コイル、上記超伝導導体層を包む絶縁層、及び上記絶縁層を包む遮蔽層を含む。本発明によると、超伝導電力ケーブルの運用中に発生するクエンチをリアルタイムで検出することができる。 【選択図】 図４

Electric cable for a motor vehicle

The line (5) has a set of insulated electrical conductors (6-8) surrounded by a common electrically effective screen (9). A light conductor (10) is presented in construction of the line over entire length of the line. The light conductor is connected to an evaluating unit that is connected to a switching element in an operating position and integrated in the screen or directly underneath the screen while contacting the screen such that damage to the line produces with certainty of deformation of the light conductor that results in a signal to be recognized by the evaluating unit.

High-strength low-resistivity high-voltage transmission power cable

本发明公开了高强度低电阻率高压输电电力电缆，包括3根导体、导体屏蔽层、绝缘层、保护层；导体屏蔽层设置在导体的外部，绝缘层设置在导体屏蔽层的外部，3根导体设置于保护层内；还包括圆柱形固定装置，圆柱形固定装置位于保护层内；所述的圆柱形固定装置的侧面等间距设置有3个圆弧形凹槽；所述的3根导体分别位于圆弧形凹槽；所述的导体、圆柱形固定装置、保护层之间形成的空腔填充绝缘填充物；还包括远端断点检测单元、N个终端断点检测单元；所述的N个终端断点检测单元等间距设置于高强度低电阻率高压输电电力电缆线路上。本发明的电力电缆不会出现摩擦导致的短路问题；电力电缆一旦出现断路问题，可以很快判断出断路点，并且线芯硬度高，电阻率低。

A kind of LSOH anti-flaming surpass five class netting twines

本发明公开了一种无卤低烟阻燃的超五类网线，包括LSZH外护套，所述LSZH外护套的外侧安装有热敏感单元，所述LSZH外护套与防水层之间设置有皱纹钢带，所述防水层与LSZH内护套之间安装有LSZH内衬层，且LSZH内护套安装在防水层的内部，所述LSZH内护套与内衬防护网之间安装有铝箔屏蔽层，且内衬防护网安装在LSZH内护套的内部，所述内衬防护网内安装有十字架，且十字架的周围均匀的安装有导线，所述十字架的上方安装有排流线，且排流线安装在导线与导线之间，所述十字架的右侧安装有数据传输线，且十字架的下方安装有撕裂绳，所述热敏感单元与数据传输线之间通过传感线连接。本发明防护层采用LSZH材料，解决了磷系阻燃剂在燃烧时产生大量有毒气体的问题。

Flexible hoisting cable and preparation method thereof

本发明公开了一种柔性吊装电缆及其制备方法，其中电缆包括由内至外依次设置的缆芯、内护套、金属编织层、外护套和外护套半导电屏蔽层；所述缆芯包括中心加强填充条以及均匀环绕在中心加强填充条外周面上的绝缘线芯；所述相邻两个绝缘线芯与内护套之间的间隙填充设有边隙加强填充条；所述金属编织层包括均匀排列设置在内护套外的金属编织防控线芯；所述相邻金属编织防控线芯之间均匀分布有金属编织加强线。本发明在保证电缆结构的柔软性的同时提高了电缆垂直安装敷设的抗拉性能，同时对电缆接地保护线芯的连续性进行监控，对电缆护套的完好性进行检测，提高电缆的安全性及稳定性，保证电缆供电的连续性。

Cable structure with damage detection means

본 발명은 손상 검출수단이 구비된 케이블구조에 관한 것으로서, 케이블 열화 또는 성능저하등을 초래할 수 있는 케이블 자켓의 손상여부를 지금까지는 육안에 의한 식별에만 의존하여 왔으나, 본 발명은 케이블의 자켈(4)와 연결된 외부 검출장치에서 검출하여 케이블의 손상유무를 인식하는 방법으로 케이블의 손상이 외부에서 간편히 검출될 수 있도록 한 것이다.

SECURE POWER SUPPLY SYSTEM AND METHOD, AND ELECTRIC CABLE IMPLEMENTED IN THIS SYSTEM

Cable including reinforcement elements

The present invention relates to a cable including reinforcement elements. The cable according to the present invention includes at least one power conductors, at least one ground conductors, a semi-conducting layer configure to surround at least part of the power conductors and the ground conductors, and at least one ground check conductor insulated from the ground conductors and configured to check the ground state of the ground conductors. The ground check conductor includes a plurality of conductors, at least one reinforcement elements provided along the outer circumference of the conductors, and an insulator configured to surround the conductors and the reinforcement elements. 14o 130

Conductive path structure and wire harness

导电通路结构（81）包括：导体（82），该导体包括通过易切断部（84）而彼此连接的第一导电部和第二导电部；和绝缘构件（83），该绝缘构件直接或间接地覆盖易切断部（84）。当由于施加到易切断部（84）的冲击，易切断部（84）被切断以便将第一导电部与第二导电部彼此分开时，绝缘构件（83）构造成覆盖分开的第一导电部和第二导电部。

A kind of cable radiator with temperature alarm

本发明涉及电缆的热扩散技术领域，公开了一种具有过热报警功能的电缆散热装置，包括环套固定于电缆外皮的卡箍，卡箍由卡箍组件通过连接螺栓拼合而成，至少一个卡箍组件外部设置有散热翅片并连接有散热器托架；散热器托架的内部空间设置有散热风扇，散热风扇包括分别设置于散热器托架两端的吸风风扇和送风风扇；散热器托架本体内设置有电源安装槽和温度监测模块安装槽，分别安装有电源和温度监测模块，温度监测模块与扇热风扇和声光报警器通过导线连接，根据检测到的温度情况分别启动扇热风扇和声光报警器。本发明专门针对电缆设计，不仅能够通过对电缆进行散热而有效减缓电缆过热老化，还能够及时通过声光报警预防烧毁电缆及连接设备。

Monitoring device for electric power cable

Electric automobile large current charge cable

本发明揭示了一种电动汽车大电流充电电缆，包括至少一股导线，导线设置在电缆内，还至少包括一根用于传输冷却媒介的第一流入管、一根流出管；所述第一流入管穿设于所述导线内部，所述第一流入管在所述导线的一端与所述流出管的一端导通连接，所述流出管临近所述导线布置。本发明的有益效果：本发明提供的充电电缆自带冷却管道，制冷效果好，采用特制的孔套结构转接头，在保护第一流入管的同时增大了转接头与导线的接触面积，极大的降低了转接头的接触电阻。

Security system and signal carrying member thereof

A security system comprising a signal-carrying member and a detector for detecting a change in the resistance of the conductive path surrounding a core of the signal-carrying member. The conductive path comprises inner and outer layers of semi-conductive tape separated by an insulating layer but interconnected at one end. The semi-conductive tape of at least the outer layer is made of fibrous material such as carbon-leaded PTFE such that when a sharp object pierces the outer layer and the insulating layer, semi-conductive fibers are dragged from the outer layer into contact with the inner layer and form a conductive bridge between the layers.

System for notifying fault section of underground power distribution line

The present invention relates to a system for notifying a fault position for each section in an underground distribution line. The system for notifying a fault position for each section in an underground distribution line notifies a management center server, patrol vehicle terminal, and patrol terminal of a fault section while blocking first and second cables by a connector and a connector driving means to quickly recover the fault when a fault occurs in a distribution line, notifies a distribution box terminal of a customer of the occurrence of outage and scheduled recovery time to allow the customer to cope with the situation, and forms an insulating coating around end parts of the blocked second cable to prevent fire due to an arc between the first cable and the second cable.

Distributed optical fiber temperature measurement power cable

本发明公开了一种分布式光纤测温电力电缆，包括金属丝铠装层，在依次排列的铠装钢丝中至少插排有一测温光纤；该测温光纤包括有测温纤芯，以及包覆于测温纤芯外侧的光纤包层，在光纤包层上包覆有导热层，在导热层外周间隔地套装有金属外管，在导热层和金属外管之间填充有导热填充膏；该导热填充膏的重量百分比组份为：胶凝剂18%—20%，分油抑制剂3%—5%，抗氧化剂1%—2%，吸水剂2%—2.5%，消泡剂0.0015%—0.002%，余为导热油；所述屏蔽层由导热屏蔽带绕包而成，该导热屏蔽带包括有石墨膜片，在石墨膜片的一侧面上镀覆有金属镀层，石墨膜片的另一侧面上设有导热胶层。该电力电缆能够对电缆运行情况实时并准确监测。

Electric cable with strain-gage and control system and method for strain detection in at least one electric cable

Изобретение относится к электрическому кабелю с встроенным датчиком деформации, пригодным, в особенности, для измерения статических и динамических деформаций, в частности деформаций изгиба. Способ контроля деформации изгиба электрического кабеля содержит этапы снабжения кабеля периферийным механически несимметричным несущим элементом, обладающим более высокой стойкостью к растягивающим нагрузкам, чем к сжимающим, и волоконно- оптическим датчиком. Изобретение обеспечивает для кабелей, пригодных для тяжелых условий эксплуатации, в частности, для подвижных установок, возможность контроля и определение местоположения деформации изгиба. 8 з.п. ф-лы, 15 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 510 904 C2 (51) МПК H01B 7/32 (2006.01) G01L 1/24 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012115445/07, 18.09.2009 (24) Дата начала отсчета срока действия патента: 18.09.2009 (43) Дата публикации заявки: 27.10.2013 Бюл. № 30 (45) Опубликовано: 10.04.2014 Бюл. № 10 (73) Патентообладатель(и): ПРИЗМИАН С.П.А. (IT) 038839 A1, 30.10.2002 . WO 2007/104915 A1, 20.09.2007. RU 2295033 C2, 10.03.2007 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 18.04.2012 (86) Заявка PCT: IT 2009/000425 (18.09.2009) 2 5 1 0 9 0 4 (56) Список документов, цитированных в отчете о поиске: GB 2368921 A , 04.08.1998 . WO 2003/ R U Приоритет(ы): (22) Дата подачи заявки: 18.09.2009 (72) Автор(ы): КЕМНИЦ Карстен (IT), САРКИ Давиде (IT), КНЮПФЕР Бернд (IT), КОЛЕТТА Джакомо (IT), КАРЛ Арнд-Гюнтер (IT), КИТТЕЛЬ Томас (IT), ЭВАЛЬД Райнер (IT) 2 5 1 0 9 0 4 R U WO 2011/033539 (24.03.2011) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) ЭЛЕКТРИЧЕСКИЙ КАБЕЛЬ С ДАТЧИКОМ ИЗГИБА И СИСТЕМОЙ КОНТРОЛЯ И СПОСОБ ОБНАРУЖЕНИЯ ИЗГИБА В ПО МЕНЬШЕЙ МЕРЕ ОДНОМ ЭЛЕКТРИЧЕСКОМ КАБЕЛЕ (57) Реферат: Изобретение относится к электрическому стойкостью к растягивающим нагрузкам ...

A cable assembly

Liquid leakage induction cable and manufacturing method thereof

本发明提供感应液体泄漏的漏液感应电缆及其制造方法，所述漏液感应电缆包括：电线芯，包括一个以上的导线与覆盖所述一个以上的导线的覆盖层；感应部，沿着所述电线芯的表面的长度方向结合；第一编织层，由非导电性纤维编织而成，并且覆盖所述感应部；其中，所述感应部具有比例于长度的电阻值，并且与所述液体反应改变输出电流值。

Circuit arrangement for monitoring a power cable and power cable with monitoring conductor

LIQUID SMOKE CONCENTRATE, METHOD FOR PREPARING THIS CONCENTRATE, METHOD FOR PREPARING A SMOKE FLAVOR AND METHOD FOR CONVERSING A SMOKE FLAVOR AND / OR FLAVOR TO A FOOD.

Hazardous Electromagnetic Waves

본 고안은 유해 전자파방지 전열선에 관한 것으로, 본 고안의 목적은 열선에서 발생되는 열잡음성 전자기파를 넓은영역 범위내에서 중화, 감쇠되도록하여 효율성을 향상시키고, 이에 인체에 해로운 유해전자파의 발생을 원초적으로 억제되도록하며, 특히 내구성을 갖는 구조로서 외부영향에 의한 에나멜선의 파손으로 부터 제품이 손실되는 등의 문제점을 해결되도록 한 유해 전자파 방지 전열선을 제공함에 있다. 따라서, 상기 목적을 달성하기 위한 본 고안의 구체적인 수단으로는; 열선을 적어도 복수가닥의 절연사로 꼬운다음 그 둘레에 온도감지선을 일정간격으로 권선하고, 다시 권선된 온도감지선의 외둘레에 일정두께의 절연피를 피복한 전열선에 있어서, 상기 절연피의 외둘레 열선의 길이방향으로 다수가닥의 에나멜선을 망상체로 엮어 연속 꼬임되게 권선한후, 2차로 절연피를 피복하며, 또 다르게는 절연피의 외둘레, 즉 열선의 길이방향으로 도체성 박막지인 알루미늄띠를 밀착되게 권회한후, 2차 절연피로 피복하므로서 달성된다.

Improvements in and relating to Stranded Electrical Conductors for Overhead Power Transmission.

1234. H÷chstõdter, M. Jan. 26. Cables and compound conductors.-A stranded aerial conductor for overhead power transmission comprises a main conductor consisting of a number of wires 1 in contact, and an auxiliary protective conductor 2 embedded in and insulated from the main conductor. The auxiliary conductor 2 and insulating-material 3 are preferably surrounded by a metallic protecting-cover 4, which may be in contact with the wires 1 and participate in carrying the main current. The cover 4 may, however, be surrounded by a layer 5 for protecting it against chemical influences. Specifications 21,992/14, [Class 38 (v), Electric Switches &c.], and 22,045/14 are referred to.

Electric wire, electric wire system and vehicle

本申请提供一种电线、电线系统及车辆，其中，电线包括光纤、检测件、线皮和线芯。线皮包裹线芯，光纤设于线皮中，检测件设于线皮外，检测件对光纤的光通量进行检测，并输出检测结果。本申请实施例中，通过将光纤设于线皮中，检测件设于线皮外，利用检测件对光纤的光通量进行检测，并输出检测结果。检修人员可以根据检测结果确定电线的线皮有无破损故障，并在电线的线皮破损时对电线进行检修，例如更换电线等，降低起火的风险，提高安全性。

Electric cable for a motor vehicle

Cable eléctrico para la conexión eléctricamente conductora de dos unidades dispuestas en un vehículo de motor que presenta conductores eléctricos aislados rodeados por un blindaje común eléctricamente activo, caracterizado por que en toda la longitud del cable (5), en la estructura del mismo, está disponible un conductor de luz (10) que, en posición de trabajo, se conecta a una unidad de evaluación (12) acoplada a un elemento de conmutación (11) y que se integra en el blindaje (9) del cable (5) o se dispone directamente por debajo del blindaje (9) del cable (5), entrando en contacto con el mismo de manera que un deterioro del cable (5) genere con seguridad al menos una deformación del conductor de luz (10) que dé lugar a una señal detectable por la unidad de evaluación (12). Electric cable for the electrically conductive connection of two units arranged in a motor vehicle that has isolated electrical conductors surrounded by an electrically active common shield, characterized in that the entire length of the cable (5), in its structure, is available a light conductor (10) that, in the working position, is connected to an evaluation unit (12) coupled to a switching element (11) and that is integrated into the shield (9) of the cable (5) or is disposes directly below the shield (9) of the cable (5), coming into contact with it so that a deterioration of the cable (5) safely generates at least one deformation of the light conductor (10) that results in a signal detectable by the evaluation unit (12).

Deterioration sensing method of power line connecting pant

The present invention relates to a method for detecting the deterioration of a power line connection part. The method for detecting the deterioration of a power line connection part includes the following steps: a temperature sensor attachment step for radially attaching multiple temperature sensors (20) to a power line connection part (10), and also for attaching a single reference temperature sensor (40), which is separated from the temperature sensors (20) in a lengthwise direction, to the power line connection part; a temperature measurement step for individually measuring the temperature of the power line connection part (10) by using the multiple temperature sensors (20), and also for measuring a reference temperature by using the reference temperature sensor (40); and a measurement value calculation step for calculating a measurement value of each temperature sensor (20) and a measurement value of the reference temperature sensor (40), and then determining whether the power line connection part (10) is deteriorated. The reference temperature sensor (40) and each of the multiple temperature sensors (20), which are radially formed at the power line connection part (10), are integrally formed at a second insulation layer (11) of a power line when the second insulation layer (11) is produced. Since multiple temperature sensors are integrally formed at a power line connection part, the present invention can accurately and quickly detect the deterioration of the power line connection part, enables the temperature sensors to be used for a long time without being damaged or separated, and can reduce maintenance costs.

System of protection against short circuits and fulminations

ABSTRACT OF THE DISCLOSURE The present invention provides a system of pro-tection against electric current, short circuits and ex-plosions, able to be used with any installation comprising an electric apparatus and a polyphase feed cable connecting the apparatus to a socket through a connection such as a conventional plug. According to the invention, the in-stallation comprises a screening of the electric apparatus and/or of the feeding cable, formed by a pair of spaced wire nets electrically insulated one from the other. There is two-phase electric line with each phase connected to one of the wire nets. A cutout circuit is associated with the connection means for disconnecting the electric feed in response to a short circuit between the two wire nets.

A kind of can the cable of accurate temperature measurement

本实用新型公开了一种可精确测温的电缆，包括包带，以及包覆在包带内的导体，导体环形的分布在包带内，其中心形成测温通道，测温通道内设有测温光纤。本实用新型所测温度即为导体温度，无需转换，不受外界环境影响；随电缆一起敷设，无需二次安装，操作简单；光纤所处位置电场几乎为零，不会影响光纤测温信号的传输；光纤接续无需引出，不会对电缆主绝缘产生不良影响；与电缆主绝缘位置不重叠，即便发生损坏，亦不会影响电缆的安全运行。

Protective device for lines

The invention relates to a protective device (1) for lines (2), in particular for cable harnesses, comprising a material for sheathing the lines (2), to an application method, and to another potential use. The invention is characterized in that the material for sheathing the lines (2) is designed such that a sensor function is provided.

Electric cable with bending sensor and monitoring system and method for detecting bending in at least one electric cable

A method for monitoring at least the bending strain of at least one electric cable provided with at least one peripheral mechanically non-symmetric strength member is provided.

Temperature detection and control device

Improved metal shielding monitoring type flame resistant cable for coal mine

本发明公开了一种改进型金属屏蔽监视型煤矿用耐火电缆，包括缆芯，所述的缆芯是由三根绝缘线芯和一根监视线芯绞合而成；其特征在于，在缆芯的空隙处填充玻璃丝，缆芯外挤包厚度为2.65‑3.65mm的耐火层，耐火层外挤包厚度为2‑4mm的金属导电管，金属导电管外设有厚度为3‑6mm的外护套；所述的外护套内还设有备用监视线芯。本发明具有很强的耐火性，外径小，重量轻，体积小，歪曲半径小、自承载性能强、弯曲性好等优点。

Composite return line

本发明提供了一种复合回流线，沿径向方向由内向外依次包括：回流导线、主绝缘和外护套，还包括：低压供电线和/或通讯线；复合回流线在需要供电处设置有取电口；复合回流线通过所述低压供电线和所述取电口为与电缆配套使用的在线监测装置提供电源；所述复合回流线在与电缆配套使用的在线监测装置需要提供信息和信号传输的端口处设置有转换接口；所述复合回流线通过所述通讯线和所述转换接口为与电缆配套使用的在线监测装置提供信号和信息的传输。本发明在作为单芯电缆外金属护层感应电流回流线使用的基础上，融合了提供电源与通信的功能，将回流接地线、供电线和通讯线结合于一体，降低了工程费用，解决了电力电缆网的监测电源和通信问题。

Superconducting power cable capable of quench detection and quench detection system using the same

Disclosed is a superconducting power cable capable of quench detection, and a quench detection system using the superconducting power cable. The superconducting power cable capable of quench detection includes a former; a superconducting conductor layer composed of a superconducting wire and surrounding the former; a conductor layer quench detection coil interposed between the former and the superconducting conductor layer and surrounding the former; an insulating layer surrounding the superconducting conductor layer; and a shielding layer surrounding the insulating layer. This superconducting power cable may detect quench generated during its operation in real time.

Continuously transposed conductor with embedded optical fiber

Continuously transposed conductor cables include a plurality of electrically insulated strands that are formed into two interposed stacks. Each of the plurality of strands may successively and repeatedly taking on. each possible position with a cross-section of the CTC cable. Additionally, an optical fiber may be incorporated into the continuously transposed conductor cable.

Electric cable for thermocouple

The cable has at least three conductors (2,4a,4b) and an insulating covering. The conductors are mechanically connected together essentially over their entire length, whereby the material of at least one conductor is different from the material of at least one other conductor if it is to be connected (5) to the other conductor. The resulting conductor pair can be used as a thermoelement. The cable is a strip cable (1) consisting of adjacent conductors, whereby the insulating coverings of the adjacent conductors are joined together.

Electrical line for a motor vehicle

An electrical line ( 5 ) for electrically conductively connecting two units arranged in a motor vehicle, where the units have insulated electrical conductors surrounded by a common electrically effective screen. Over the entire length of the line ( 5 ) the construction of the line includes at least one light conductor ( 10 ) which is connected in the operating position to an evaluating unit ( 12 ) coupled to a switching element ( 11 ), and is integrated in the screen ( 9 ) of the line ( 5 ), or is arranged directly underneath the screen ( 9 ) of the line ( 5 ) while being in contact with the line ( 5 ), so that damage to the line ( 5 ) leads with certainty at least to a deformation of the light conductor ( 10 ) which leads to a signal which can be recognized by the evaluating unit ( 12 ).

Leakage detection cable and method for manufacturing same

The present invention provides a leakage detection cable and a method for manufacturing the same, and the leakage detection cable detects a leaking liquid and includes: an electric wire core which includes one or more conductive wires, and a sheath layer that covers the one or more conductive wires; a detection unit which is coupled in a longitudinal direction of a surface of the electric wire core; and a first braided layer which is braided with non-conductive fibers and covers the detection unit, in which the detection unit has a predetermined resistance value that is proportional to a length, and reacts with the liquid such that an output electric current value is changed.

Superconducting power cable capable of quench detection and quench detection system using the same

Disclosed is a superconducting power cable capable of quench detection, and a quench detection system using the superconducting power cable. The superconducting power cable capable of quench detection includes a former; a superconducting conductor layer composed of a superconducting wire and surrounding the former; a conductor layer quench detection coil interposed between the former and the superconducting conductor layer and surrounding the former; an insulating layer surrounding the superconducting conductor layer; and a shielding layer surrounding the insulating layer. This superconducting power cable may detect quench generated during its operation in real time.

High voltage power transmission power cable

本发明公开了一种高压输电电力电缆，包括第一线芯、第二线芯、第一绝缘层、第二绝缘层、屏蔽层、保护层；所述的第一线芯截面呈圆环形，所述的第二线芯截面呈圆形；所述的第二线芯设置于第一线芯内部；第一线芯与第二线芯之间设置第一绝缘层；第二线芯的外部由内向外依次设置第二绝缘层、屏蔽层、保护层；还包括第一导线、第二导线、第三导线；所述的第一导线、第二导线、第三导线的外径两两相切；所述的第一导线、第二导线、第三导线设置于保护层内；所述的第一导线、第二导线、第三导线分别与线芯平行；本发明提供的高压输电电力电缆，当盗贼盗窃电力电缆防护层的那一刻就能够立马知道盗窃的地点。

Improvements in or relating to electric cables

747,288. Cables. FULGOR SOC. PER AZIONI. Feb. 26, 1954 [March 9, 1953], No. 5783/54. Class 36. A cable comprises at least one service conductor f, insulation e, a carrier conductor d of high resistivity, an additional conductor c of known and uniform resistivity, an insulating layer b and a conductive sheath a. Damage to the sheath a resulting in the penetration of moisture to the conductor c may be detected and located while the cable is in service by a measuring instrument connected to the conductor c and sheath a. When the cable is out of service the two lengths of conductor c between the damaged point and the cable ends are incorporated in the arms of a bridge-type measuring instrument, the sheath a being used in the current supply path of the bridge.

Thermal overload protection for LV cable - has fuse wire installed inside cable which is monitored for continuity

The thermal overload protection, for a low voltage cable, consists of a length of fuse wire, (2) laid inside the cable next to the current carrying conductor or conductors. The far end of the fuse wire is connected to the conductor and the continuity of the so-formed circuit is monitored. Excessive heat developed in the cable at any point causes the fuse wire to melt locally and to break continuity. In a three-phase three-core cable the fuse wire is located along the axis in contact with all three insulated wires. The end of the fuse wire may be connected to one or to all three cable wires.

Longitudinal cable for transport of data or electric energy in harness of aircraft, has elementary areas having sensor elements, where each sensor element performs measurement of health parameter of cable in respective elementary area

The cable (10) has an inner functional core (3), an outer protective sheath (2), an elementary area (Zi) having a sensor element (Ci), and another elementary area (Zi plus 1) having another sensor element (Ci plus 1). Each sensor element is intended to perform a measurement of a health parameter e.g. temperature, of the cable in the respective elementary area, where the sensor elements are intended to communicate with each other. The sensor elements are connected by a communication link that extends along the length of the cable. Independent claims are also included for the following: (1) a harness of an aircraft (2) a method for monitoring a longitudinal cable (3) a method for monitoring a harness of an aircraft.

Method and apparatus for a sensor wire

A cable includes a conductor (112) having an insulation layer (114) wrapped substantially about the conductor. A foamable polymer layer (116) is applied substantially about the insulation layer. A cross-section of the foamable polymer layer has a substantially uneven outer surface. An armor shell (118) is applied exterior to the foamable polymer layer. The armor shell is substantially concentric to the conductor.

Water alarm and fault-locating for air core plastic-insulated telephone cable

High-strength low-resistance-rate high-voltage transmission power cable

本发明公开了高强度低电阻率高压输电电力电缆，包括3根导体、导体屏蔽层、绝缘层、保护层；导体屏蔽层设置在导体的外部，绝缘层设置在导体屏蔽层的外部，3根导体设置于保护层内；还包括圆柱形固定装置，圆柱形固定装置位于保护层内；所述的圆柱形固定装置的侧面等间距设置有3个圆弧形凹槽；所述的3根导体分别位于圆弧形凹槽；所述的导体、圆柱形固定装置、保护层之间形成的空腔填充绝缘填充物；还包括远端断点检测单元、N个终端断点检测单元；所述的N个终端断点检测单元等间距设置于高强度低电阻率高压输电电力电缆线路上。本发明的电力电缆不会出现摩擦导致的短路问题；电力电缆一旦出现断路问题，可以很快判断出断路点，并且线芯硬度高，电阻率低。