A light non-metallic flame-retardant and fire-resistant optical cable

Abstract

The invention discloses a light-weight nonmetal flame-retardant fireproof optical cable. The light-weight nonmetal flame-retardant fireproof optical cable comprises a flame-retardant fireproof layer,wherein the outer side of the flame-retardant fireproof layer is fixedly connected with a jacket, the inner side of the flame-retardant fireproof layer is provided with a casing pipe, the inner side of the flame-retardant fireproof layer is provided with a center reinforcing member arranged on the inner side of the casing pipe, the inner side of the flame-retardant fireproof layer is provided witha sliding groove arranged on the outer side of the casing pipe, and the inner side of the flame-retardant fireproof layer is provided with filling colloid arranged between the casing pipe and the center reinforcing member. By arranging a limiting groove and a combination groove, the relative position between the casing pipe and the center reinforcing member is changed, so that the traction of a limiting rod is used for performing the dragging sliding effect, the relation between the casing pipe and the center reinforcing member is ensured, the greater friction caused by the position deviationcan be reduced, an effect for prolonging the service life by ensuring the relative position of the structure can be achieved, and the long-term use effect is facilitated.

Description

technical field [0001] The invention relates to the technical field of flame-retardant and fire-resistant optical cables, in particular to a light non-metallic flame-retardant and fire-resistant optical cable. Background technique [0002] Optical cables are manufactured to meet optical, mechanical or environmental performance specifications. It is a communication cable assembly that uses one or more optical fibers placed in a sheath as a transmission medium and can be used individually or in groups. Optical cables It is mainly composed of optical fiber (glass filament as thin as hair), plastic protective sleeve and plastic sheath. There is no metal such as gold, silver, copper and aluminum in the optical cable, and generally has no recycling value. [0003] With the rapid development of society, more and more light-weight non-metallic flame-retardant and fire-resistant optical cables are used, and the quality requirements for light-weight non-metallic flame-retardant and fi...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings in the prior art, such as: the position of the light-weight non-metallic flame-retardant fire-resistant optical cable is easy to shift and wear because there is no traction connection structure between the sleeve and the central reinforcement, and the existing sleeve There is no mutual traction structure between them, so the position is easy to shift and affect the normal service life, and a light non-metallic flame-retardant fire-resistant optical cable is proposed

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