Thermal insulation bottle type B1-level light fireproof cable

A fireproof cable, warm bottle technology, applied in the direction of insulated cables, cables, circuits, etc., can solve problems such as hidden dangers of cable fire, achieve compact structure, improve compression coefficient and cross-section utilization, and improve reliability.

Inactive Publication Date: 2020-08-14
ANHUI PACIFIC CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a thermos bottle-type B1-level light fireproof cable to solve the problem of potential fire hazards in cables in rail transit in the prior art

Method used

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  • Thermal insulation bottle type B1-level light fireproof cable

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] Such as figure 1As shown, a thermos bottle-type B1-level light fireproof cable includes a composite insulated cable core group composed of multiple cable cores stranded, and each cable core is respectively covered by a profiled wire stranded aluminum alloy conductor 1, The mineral insulating layer 2 on the outside of the stranded aluminum alloy conductor 1 is composed of a double-insulation irradiation cross-linked composite insulating layer 3 coated on the outside of the mineral insulating layer from the inside to the outside, wherein the stranded aluminum alloy conductor 1 is composed of It is composed of round aluminum alloy monofilament and multiple aluminum alloy shaped wires twisted outside the round aluminum alloy monofilament. The aluminum alloy shaped wire is trapezoidal or SZ, and the basic structure of twisting is 1+5+10 or 1+6+12 wai...

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Abstract

The invention discloses a thermal insulation bottle type B1-level light fireproof cable, which comprises a composite insulation cable core group formed by twisting a plurality of cable cores. Each cable core is formed by twisting a molded line with an aluminum alloy conductor, a mineral insulation layer and a double-insulation irradiation crosslinking composite insulation layer; the whole composite insulated cable core group is wrapped with a first low-smoke halogen-free belt, gaps in the first low-smoke halogen-free belt are filled with inorganic mineral fillers to form a cooling fireproof layer, and a B1-level isolation layer, an armored metal sleeve, a flame-retardant fire-blocking layer, a second low-smoke halogen-free belt and a B1-level sheath are arranged outside the first low-smokehalogen-free belt. The cable provided by the invention has reliable mineral insulated cable fireproof characteristic, B1-level flame retardant property and low-smoke halogen-free environment-friendlycharacteristic.

Description

technical field [0001] The invention relates to the field of rail transit protective cables, in particular to a temperature-insulated bottle-type B1-level light fireproof cable. Background technique [0002] In recent years, my country's subway and light rail transportation key projects have developed rapidly. In view of the dense population and congestion of subway stations, once a fire occurs, it will not only cause the loss of national property, but more seriously, it will threaten the lives of many people. The Ministry of Housing and Urban-Rural Development On May 14, 2018, the State Administration for Market Regulation and the State Administration of Market Regulation jointly issued the mandatory national standard GB51298-2018 "Subway Design Fire Protection Standard", which was officially implemented on December 1, 2018. In order to prevent subway fires, reduce the hazards of subway fires, and protect the safety of people and property, this invention combines the relevan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/29H01B7/17H01B7/18H01B7/20H01B7/22H01B7/295
CPCH01B7/17H01B7/18H01B7/205H01B7/228H01B7/29H01B7/295
Inventor 黄晓宝田鸣王泽元朱为坤肖俊林汪晓林
Owner ANHUI PACIFIC CABLE CO LTD
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