Double-metal armored high temperature-resistant fireproof cable

Abstract

The invention relates to the field of cables and particularly provides a double-metal armored high temperature-resistant fireproof cable, which comprises cable cores, wherein the cable cores are aluminum alloy conductors; a crosslinked polyethylene insulation layer is extruded outside each aluminum alloy conductor; an aluminum tape fireproof shielding tape is extruded outside the crosslinked polyethylene insulation layers; an oil-proof and flame-retardant nitrile rubber flame-retardant layer is extruded outside the aluminum tape fireproof shielding tape; a glass fiber flame-retardant wrappingtape coats the outside of the nitrile rubber flame-retardant layer; a thick steel wire-armored flame-retardant layer is extruded outside the glass fiber flame-retardant wrapping tape; and a polyvinylchloride outer sheath is extruded outside the thick steel wire-armored flame-retardant layer. Air pollution is not caused by adopting double metal armoring instead of a chemical or physical additive;the melting point of the cable is improved through the aluminum tape fireproof shielding tape; the flame-retardant effect is good; and the aluminum tape fireproof shielding tape is uniform in internalstress; and meanwhile, the nitrile rubber flame-retardant layer is oil-proof and high-temperature resistant, so that the security of the inside of the cable cores can be fully protected.

Description

technical field [0001] The invention relates to the field of cables, in particular to a double-layer metal armored high-temperature resistant fireproof cable. Background technique [0002] In order to ensure data security, people hope that after a fire, there will be enough time to return all data before the entire network is paralyzed, and transfer them to a safe place to minimize the possibility of data loss. Therefore, in the cable standard, there is also a kind of fire protection standard, which is called the "line integrity" standard. Its goal is that the cable can still keep the line open in the fire scene, so that power and information can still be transmitted normally. Therefore, cables that meet the series integrity requirements are also called fireproof cables. With the increase of the scope of use of cables, the safety of cables is also extremely important. When a fire occurs, the cables need to be resistant to high temperature and flame retardant so that people...

AI Technical Summary

Problems solved by technology

With the increase of the scope of use of cables, the safety of cables is also extremely important. When a fire occurs, the cables need to be resistant to high temperature and flame retardant so that people can escape successfully. Now more minerals are added to obtain flame retardant effects, but minerals bend Low strength, still needs improvement

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