Dielectric optical fiber cable having improved installation features
Номер патента: EP1664876A1
Опубликовано: 07-06-2006
Автор(ы): A. Pirelli C.&S. Telecom Holding SpA GINOCCHIO, G. Pirelli C.&S. Telecom Holding SpA BRANDI, M. Pirelli C.&S. Telecom Holding SpA PIZZORNO
Принадлежит: Prysmian Cavi e Sistemi Energia SRL
Опубликовано: 07-06-2006
Автор(ы): A. Pirelli C.&S. Telecom Holding SpA GINOCCHIO, G. Pirelli C.&S. Telecom Holding SpA BRANDI, M. Pirelli C.&S. Telecom Holding SpA PIZZORNO
Принадлежит: Prysmian Cavi e Sistemi Energia SRL
Реферат: A telecommunication optical fiber cable and in particular a reduced diameter optical cable with improved installation features for use in the end part of an access telecommunication network. The optical fiber cable has a number of optical fibers; at least a core tube containing the optical fibers; a jacket surrounding the core tube; and at least one strength rod spaced from the central axis, the cable having a twisting stiffness G*J<SUB>p</SUB>, wherein G is the elastic shear modulus; and J<SUB>p </SUB>is the polar moment of inertia of a cable section, wherein the twisting stiffness G*J<SUB>p </SUB>is lower than or equal to 0.10 Nm<SUP>2</SUP>, preferably lower than or equal to 0.05 Nm<SUP>2</SUP>, and more preferably lower than or equal to 0.02 Nm<SUP>2</SUP>. The cable is profitably installable by a blown method.
Optical fiber cable with components having improved compatibility with waterblocking filling compositions
Номер патента: EP1214619A1. Автор: Antonio Zaopo,Mauro Maritano,Claudio Bosisio,Antonio Campana. Владелец: Pirelli Cavi e Sistemi SpA. Дата публикации: 2002-06-19.