Environment protection high flame resistance fire control type cable

Abstract

A cable of high flame-retardant environmental protection and fire-fighting is composed of a single core or multiple cores wrapped with an XLPE insulation layer separately to become an insulation conductor filled with inorganic filling materials of asbestos base, the insulation conductor beam is covered with a betting layer, an oxygen-isolation layer, s steel belt layer and an outer protection layer orderly, among which, the belting layer is a lap-wound one bound by alkali-free glass silk belt layer is a galvanized one of double-layer gap winding, the oxygen-isolation layer and outer protection layer are high-molecular compounds with the olefine polymer as the basis mixed with hydra-hydroxide by a coupler.

Description

Technical field: [0001] The invention relates to a cable, in particular to a highly flame-retardant, environment-friendly and fire-fighting cable. Background technique: [0002] According to the information of the fire department, among the fires in our country, the fires caused by electricity account for about half. In electrical fires, fires caused by aging and overloading of wires and cables account for a large proportion. At the same time, flammable insulation and sheath materials in wires and cables are ignited during fires, resulting in further expansion of fire accidents. The toxic gases emitted by the burning of wire and cable insulation and sheathing materials will cause a large number of casualties and hinder firefighters from extinguishing the fire. [0003] At present, most plastic insulated cables in my country use polyvinyl chloride insulation and sheath materials. The cables of the prior art have the following defects. First, the light transmittance of the sm...

AI Technical Summary

Problems solved by technology

Toxic gases emitted by the burning of wire and cable insulation and sheathing materials can cause a large number of casualties and hinder firefighters from extinguishing the fire

[0003] At present, most plastic insulated cables in my country use polyvinyl chloride insulation and sheath materials. The cables of the prior art have the following defects. First, the light transmittance of the smoke emitted by the polyvinyl chloride material is below 15%. In the smog, the naked-eye distance is only about 2m, and the visibility is low, which seriously affects the evacuation and rescue of the fire scene.

At the same time, the smoke produced by the burning of polyvinyl chloride materials contains a large amount of corrosive and toxic gases such as hydrogen chloride and dioxin, which causes great harm to the personnel at the fire site and important facilities, causing the so-called "secondary public hazards", and it Low flame retardant grade, only C grade

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