Flame retardant optical cable

A fire-retardant and flame-retardant, optical cable technology, applied in the direction of light guide, optics, optical components, etc., can solve the problems of difficult to pass, poor performance, poor mechanical properties of flame-retardant optical cables, achieve good bending, excellent flame retardant fire resistance, reduce The effect of weight

Inactive Publication Date: 2016-10-12
TONGDING INTERCONNECTION INFORMATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual burning test, although a single vertical burning test can be passed, it is difficult for ordinary flame-retardant optical cables to pass the fire resistance test under strict conditions.
The poor performance of the material itself leads to poor insulation and mechanical properties

Method used

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  • Flame retardant optical cable

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Embodiment Construction

[0023] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0024] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention Creation and simplification of description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should no...

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Abstract

The invention provides a flame retardant optical cable which comprises a cable core and also comprises a first water blocking belt layer, a metal composite belt layer, a flame retardant inner protective layer, a second water blocking belt layer, a ceramic flame retardant composite belt layer, a steel plastic composite layer and a flame retardant outer protective layer which are orderly arranged outside the cable core. In order to prevent the cracking of a low smoke halogen free flame retardant polyolefin outer sheath, when the flame retardant optical cable is laid, the laying speed should be slowed down appropriately. The optical cable has excellent bending and compression performance and excellent flame retardant and fire resistant performance. The ceramic flame retardant composite belt arranged in the outer sheath is soft in a normal state, the bending performance of the optical cable is not affected, after the optical cable is laid, a hard ceramic shell can be formed to protect the optical cable. The smoothness of a line in a fire is ensured, the system failure of optical cable transmission is prevented, and the safety of life and property is protected to the maximum.

Description

technical field [0001] The invention belongs to the technical field of optical cable design and manufacture, and in particular relates to a fire-resistant and flame-retardant optical cable. Background technique [0002] In some important places, such as: large shopping malls, theaters, airports, high-rise buildings, hotels, central computer rooms, etc., in order to ensure the integrity of communication lines, it is generally necessary to use optical cables with high flame retardant properties. Once a fire breaks out, the optical cables used in these places will burn quickly, resulting in the failure of the optical fiber cable transmission system, and then fire-resistant optical cables have begun to be widely used. Moreover, when the traditional fire-resistant optical cable is on fire, the outer protective layer of the optical cable emits toxic gas during the burning process, which will increase casualties and property losses, and is not conducive to environmental protection ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
CPCG02B6/4427G02B6/4432G02B6/4436G02B6/44384
Inventor 沈小平施双宝杜华雪朱宇杭计忠华李伟刚肖旭阳
Owner TONGDING INTERCONNECTION INFORMATION CO LTD
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