Light and cold-proof screening control cable

Abstract

The invention belongs to the field of a cable, and particularly relates to a light and cold-proof screening control cable. An insulating cable core is formed by a stranded copper conductor of the screening control cable and a polyethylene insulating layer outside the stranded copper conductor; the insulating cable core is divided into an inner layer of the insulating cable core, a middle layer of the insulating cable core, and an outer layer of the insulating cable core; the middle layer of the insulating cable core is separated from the outer layer of the insulating cable core through a polyamide yarn loose lapping and tight bundling layer; a polytetrafluoroethylene thin film or a polytetrafluoroethylene lapping cushion layer is arranged outside the outer layer of the insulating cable core; a composite aluminum-plastic tape is arranged outside the polytetrafluoroethylene thin film or the polytetrafluoroethylene lapping cushion layer; a non-absorbent material isolation belt is arranged outside the composite aluminum-plastic tape; a high-permeability alloy belt is arranged outside the non-absorbent material isolation belt; the non-absorbent material isolation belt is arranged outside the high-permeability alloy belt; and a polyurethane jacket is arranged outside the non-absorbent material isolation belt. With the adoption of the light and cold-proof screening control cable provided by the invention, the problems that the conventional cable can not meet the requirement of cold resistance in special industries can be solved; and the light and cold-proof screening control cable is applicable to a condition with a temperature in a range from minus 70 DEG C to minus 100 DEG C in a metallurgy industry, an electric industry, a petrochemical industry and the like.

Description

technical field [0001] The invention belongs to the field of cables, in particular to a light, cold-proof and shielded control cable. Background technique [0002] Shielded control cables are suitable for connection lines of electrical instruments with AC rated voltage of 450 / 750V and below and transmission lines of automatic control systems. Performance, suitable for metallurgy, electric power, petrochemical and other industries. [0003] The existing shielded control cables are composed of conductors, insulating layers, shielded grounding wires, copper tape shielding layers and sheath layers. When the current flows through the ground wire, the shielding layer will be melted, resulting in the loss of the effect of the shielding layer, and the interference signal will affect the normal operation of the equipment, and even the cable will be burned in severe cases. When used in a low-temperature environment, the anti-interference ability of the cable is not strong, which may...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a light, cold-proof and shielded control cable to solve the problem that the existing cables cannot meet the cold-resistant needs of special industries.

Images