Power cable with function of early warning and detection

Technical Field

The present invention relates to the technical field of power cable, in particular to a with early warning detection function of the power cable.

Background Art

Cable usually is composed of several or several groups of the leads (each group of at least two) formed by the twist of the rope is similar to cable, each group of leads are insulated with each other, and often the weight of around a center, and the height of the whole is covered outside the insulating cover. The cable has in the energization, the outer insulating characteristic; wherein the power cable is an important part of; power cable is used for transmitting and distributing electric energy of the cable, the power cable is usually used for urban underground network, power station lead-out line, industrial enterprises of the internal power supply and have Jianghai underwater transmission line. In the electric power line, the cable is gradually increase in proportion. The power cable is in trunk circuit of the electric power system to large power electric energy transmission and distribution cable products, including 1 - 500KV above and various voltage levels, various insulated power cable; but in the ordinary in the power cable, do not have the fuse alarm, the alarm function of the broken, on the market of the need for a new occurrence of the power cable.

Content of the invention

The purpose of this invention is to provide a have early warning detection function of the power cable, in order to solve the above-mentioned background technical issues raised in the.

To achieve the above object, the present invention provides the following technical solution: a with early warning detection function of the power cable, and comprises an insulating layer a; said insulating layer a is covered with insulating layer b; said insulating layer b is arranged on the inner protective layer; the interior of the protection layer comprises an insulating layer c, the elastic line, cores, core, breaking of warning, fusing of warning; said insulating layer c is covered with two auxiliary core; the auxiliary core is arranged on one side of the core; the core is arranged in the inside of the insulating layer c; said insulating layer c is arranged on one side of the elastic line; the elastic line of the other side of the break warning is provided; the broken warning of the other side of the fuse warning is provided.

Preferably, the insulating layer is made of a butyl rubber; said insulating layer b is made of ethylene-propylene rubber; said insulating layer c is made of polyvinyl chloride.

Preferably, the insulating layer and the outer surface of the inner side of the c is arranged between the damage warning; the damage of the outer side of the warning covered on the surface of the isolation layer; wherein the protective layer is a metal net.

Preferably, the outer surface of the auxiliary core is wrapped with a wrapping layer is provided with a; the main core mounted on the outside surface coating layer b.

Preferably, the outer side of the break warning break warning covered on the surface of the insulating layer; the outer surface of the fuse warning fuse warning is provided with the insulating layer.

Preferably, the main core and an auxiliary core filled between the cable and the inner filling; the broken with the fuse warning of the warning, the elastic line is filled between the filler line; said line filler is set up in the interior of the protection layer.

Preferably, the one terminal of power supply are respectively connected to the fusing of warning, a wire; the wire a is provided with a warning lamp, alarm a; of the lead a one end of a alarm indicator lamp; said caution light a and the other terminal of alarm a; of the lead a, the other end of the fuse warning of the security resistor is connected a circuit; the safety resistor a and the other end of the other end of the power supply circuit is connected.

Preferably, the another power warning are respectively connected with the two ends of the broken, the two ends of the wire b; the wire b is provided with a warning lamp b, alarm b, protective resistance; of the lead a is connected with one end of the protection resistance; the resistance of the protection of the other is connected with one end of a warning lamp b; the other of said warning light b is connected with the alarm b; the wire b, the other end of the broken warning of the security resistor is connected to one end of the b circuit; the safety resistor b and the other end of the other end of the power supply circuit is connected.

Compared with the prior art, this invention has the advantages of: this invention adopts the protective layer, the protective layer is a metal mesh, a protective layer provided in the insulating layer, the insulating layer and the interior of the b, the protective layer may be a protective insulating layer c, the elastic line, cores, core, breaking of warning, fusing of warning, enhance the power cable of the toughness and tensile stretching, extension of the service life of the cable; the elastic line, the elastic line has high flexibility and elasticity, the power cable when bending occurs, the elastic line can protect the main core and an auxiliary core, prevents the cable from bending when relatively small angle, with the auxiliary core break core, thus affecting the power of the transmission function, the protection of the cable; the breaking of warning, broken with the warning lamp b warning, alarm with b, the cable small angle bent or subjected to shear, but the main core and an auxiliary core is not broken, the breaking of the first broken warning, thus warning lamp flicker b, b the alarm sound, thereby realizing the function of the break early warning; employing fuse warning, fuse with the warning lamp a warning, alarm with a, when the cable because the resistance loss of the excessive heat or when a plurality of short circuit, cable temperature is too high, the temperature of the fuse is fused by warning is far lower than the main core and an auxiliary core, the core and an auxiliary core in the accident of excessive heat under the condition of high, fuse link first warning, thereby realizing the fuse early warning.

Description of drawings

Figure 1 is a structure diagram of the invention;

Figure 2 is the invention fusing of warning the wiring diagram;

Figure 3 is the invention broken warning the wiring diagram.

In the Figure: 1, the insulating layer a; 2, the insulating layer b; 3, protective layer; 4, the insulating layer c; 5, a wrapped layer; 6, damage warning; 7, the coating layer b; 8, a main core; 9, an isolation layer; 10, in-line filler; 11, the auxiliary core; 12, line filler; 13, the elastic line; 14, fusing of warning; 15, the insulating layer fusing warning; 16, breaking of warning; 17, breaking the insulating layer warning; 18, wire a; 19, a warning lamp; 20, alarm a; 21, a safety resistor; 22, wire b; 23, warning lamp b; 24, alarm b; 25, safety resistance b, 26, a protective resistor; 27, power supply.

Mode of execution

The combination of the lower portion of the embodiment of the invention in the Figure, in the present embodiment of the invention the technical proposal a clear, and complete description, obviously, the embodiment described is only a portion of the embodiment of this invention, not all of the embodiments. In this invention based on the embodiment of the, ordinary skill in the art in the creative work did not obtained under the premise of all other embodiments, all belong to the scope of protection of this invention.

Please refer to fig. 1 - 3, the present invention provides a technical proposal: including insulating layer a1; said insulating layer a1 is covered with insulating layer b2; said insulating layer b2 the inner side of the protective layer 3; the protective layer 3 comprises an insulating layer inside the c4, elastic line 13, the auxiliary core 11, core 8, broken warning 16, fuse warning 14; said insulating layer c4 wrapped with two auxiliary core 11; the auxiliary core 11 is arranged on one side of the core 8; the core 8 is provided on the insulating c4 internal; said insulating layer c4 arranged at one side of the elastic line 13; the elastic line 13 the other side of the break warning is provided with 16; the broken warning 16 is arranged on one side of the other fuse warning 14; said insulating layer a1 is made of butyl rubber; said insulating layer b2 is made of ethylene-propylene rubber; said insulating layer c4 is made of polyvinyl chloride; said insulating layer c4's inner side and the outer side surface of the damage warning is set between the 6; the damage warning of 6 covered on the surface of the outer side of the insulating layer 9; the protective layer 3 is a metal net; the auxiliary core 11 is provided with the outer surface of the wrapped with a wrapping layer a5; the core 8 mounted on the outside surface of the coated layer b7; broken warning 16 outside of the break warning covered on the surface of the insulating layer 17; the fuse warning 14 mounted on the outside surface of the fuse warning insulating layer 15; the core 8 with the auxiliary core 11 is filled between the cable and the inner filling 10; the broken warning of 16 fuse warning with 14, elastic line 13 is filled between the filler line 12; the line filler 12 is arranged in the protective layer 3 internal; the power supply 27 is connected with one end of the fuse warning respectively 14, wire a18; of the lead a18 is provided with a warning lamp a19, alarm a20; of the lead a18 alarm indicator lamp a20 one end; said caution light a20 the other terminal of the alarm a20; of the lead a18, fuse warning 14 the other end of the safety resistor a21 circuit connected; the safety resistor a21 the other end of the power supply 27 and the other end is connected with a; said another power supply 27 are respectively connected with the two ends of the broken warning 16, wire b22 two ends of; the wire b22 is provided with a warning lamp b23, alarm b24, protective resistor 26; the lead wire a18 is connected with the protective resistor 26 one end of; the protective resistor 26 and the other terminal of warning lamp b23 one end; said caution light b23 the other terminal of the alarm b24; of the lead b22, broken warning 16 the other end of the safety resistor b25 circuit connected to one end of the; the safety resistor b25 the other end of the power supply 27 is connected to the other end of the circuit.

The invention in the specific implementation, break warning 16 with the warning lamp b23, alarm b24 matching, in cable small angle bent or subjected to shear, but core 8 with the auxiliary core 11 when not rupture, break warning 16 first fracture, warning lamp b23, alarm b24 will not be short-circuit, thus warning lamp b23 flicker, alarm b24 sound, thereby realizing the function of the break early warning; fuse warning 14 with the warning lamp a19, alarm a20 fit, when the cable because the resistance loss of the heating excessive or short-circuit when the, cable temperature is too high, the fuse warning 14 of the fusing temperature is far lower than the main core 8 with the auxiliary core 11, thus in the main core 8 with the auxiliary core 11 in the accident of excessive heat under the condition of high, fuse warning 14 link first, warning lamp a19, alarm a20 no longer is short circuited, the warning lamp a19 flicker, alarm a20 sound, thereby realizing the fuse early warning; elastic line 13 can be within a certain angle range for the protection of the power cable is not affected by the influence of the bending angle, the protection of the cable.

Although have already shown and described the embodiment of the invention, the field for the ordinary technical personnel, can understand without departing from the principle of the invention and the spirit of the these under the situation of the embodiment of a plurality of changes, modifications, replacement and modify, the scope of the invention by the attached claims and their equivalent limit.