An explosion-proof flame-retardant computer cable used in explosive places

Abstract

The invention relates to the technical field of computer cables, in particular to an explosion-proof flame-retardant computer cable used in an explosive place, comprising an inner core of the cable, an inner shield layer, a flame-retardant layer, an outer shield layer and a fire-retardant sheath layer. The inner core of the cable is provided with a plurality of cores, wherein, any one of the coresis arranged at the center of the cable, and the remaining cores are evenly distributed around the inner core of the cable arranged at the center of the cable; The cable inner core comprises a cable core, an insulation layer wrapped outside the cable core, and an insulation filler filled between the insulation layer and the cable core. The cable core is composed of a plurality of conductors and aplurality of insulating separators, wherein the insulating separators are arranged between two adjacent conductors; Several cable cores are enclosed externally by an internal shield. The invention solves the problems that the flame retardant effect of the existing explosion-proof computer cable is poor, the cable will continue to burn when the cable is combusted and withdrawn from the open fire, and the cable can not be automatically extinguished and the electromagnetic leakage is caused by the unreasonable shielding layer design.

Description

technical field

[0001] The invention relates to the technical field of computer cables, in particular to an explosion-proof and flame-retardant computer cable used in explosive places. Background technique

[0002] In some explosive hazardous places, such as gas stations, gas stations, ammunition factories, etc., the computer cables used generally must avoid the formation of dangerous sparks that are easy to ignite explosive mixtures. For this reason, the cables need to be designed with intrinsic safety. The existing conventional explosion-proof Computer cables add refractory mica tape structure or magnesium oxide to the outside of the conductor, but these conventional explosion-proof cables have poor moving effect and high temperature resistance, and will produce a lot of dense smoke during the combustion process to pollute the environment; silicone cables It also has a certain explosion-proof performance. The silica produced by the cable during the explosion and combustion...

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