Novel environment-friendly intrinsic safety cable for explosion-proof place

Abstract

The invention discloses a novel environment-friendly intrinsic safety cable for an explosion-proof place and belongs to the technical field of cable application. The novel environment-friendly intrinsic safety cable for the explosion-proof place comprises three cable cores. Each cable core is internally provided with two groups of twisted wire cores. Each group of wire cores comprises a copper conductor, a first semi-conductive nylon tape wrapping the outer side of the copper conductor, and a cross-linked polyethylene insulating layer wrapping the outer side of the first semi-conductive nylontape in an extruded manner. Compared with the prior art, the cable has the advantages of simple structure, low cost, good insulation and shielding performance, effective electromagnetic interference prevention, small external magnetic field interference force, excellent fireproof and explosion-proof performance, good safety performance, high strength, good compression resistance and good pressureresistance. The cable solves the problems of poor physical performance, large smoke amount during combustion and generation of a large amount of toxic and harmful gas during combustion of the existingcable. Compared with the traditional intrinsic safety cable, each performance can reach or even exceed the national standard requirement, and is superior to the existing similar cable.

Description

technical field [0001] The invention relates to the technical field of cable applications, and more specifically relates to a novel intrinsically safe cable for use in environment-friendly and explosion-proof places. Background technique [0002] A cable is a rope-like cable twisted by several or groups of conductors (at least two in each group). Each group of conductors is insulated from each other and is often twisted around a center. overlay. The cable has the characteristics of internal electrification and external insulation. [0003] With the rapid development of science and technology and the widespread application of electronic control technology, there are more and more electrical components, and there will be more and more wires, especially in chemical and petroleum industries, which have higher and higher requirements for the explosion-proof characteristics of cables. This is a big problem that needs to be solved. How to make a large number of wiring harnesses m...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the prior art, the object of the present invention is to provide a new type of intrinsically safe cable for use in environment-friendly explosion-proof places, which can achieve better insulation and shielding performance, can effectively prevent electromagnetic interference, and is less affected by external magnetic field interference. Moreover, it has excellent fireproof and explosion-proof performance, good safety performance, high strength, good pressure resistance and pressure resistance performance, which solves the problems of poor physical properties of existing cables, large amount of smoke during combustion, and a large amount of toxic and harmful gases produced by combustion.

Images