accompanying cable

Abstract

The invention discloses a trailing cable. The trailing cable comprises a plurality of conductive cores and a sheath. Each conductive core comprises a plurality of copper coated aluminum conductors and a plurality of copper covered steel conductors. The copper coated aluminum conductors and the copper covered steel conductors are twisted. By applying the trailing cable, it is ensured that the DC resistance and tensile strength of the trailing cable accord with GB / T3956 correlation prescriptions, at the same time, the cost and weight of the trailing cable are substantially reduced.

Description

technical field [0001] The invention relates to an elevator cable, in particular to an accompanying cable. Background technique [0002] Copper conductors have excellent electrical conductivity, thermal conductivity and processability, good corrosion resistance and mechanical properties, low contact resistance, good weldability, etc., and are widely used as accompanying cable conductors. However, copper conductor resources are limited, the unit price is high, and the density is high, resulting in high manufacturing costs and heavy weight of copper conductor accompanying cables. [0003] The aluminum conductor has good electrical conductivity, thermal conductivity and processing performance; it is rich in resources, low in unit price, and low in density. However, aluminum conductors have low tensile strength, are easy to oxidize, are more likely to corrode than copper, have high contact resistance, and cannot be soldered and other defects, which lead to faults in cable opera...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a traveling cable in order to overcome the defects of high manufacturing cost and heavy weight of the prior art accompanying cable

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