Why wire and cable choose copper conductor?

June 23, 2022

High-voltage cable manufacturers Introduction The conductors in wire and cable are generally copper. The appearance of pure copper is purple, which is called copper. The density of copper is 8.89g/cm. It has good conductivity and is suitable for wire conductors. Secondly, the conductivity of copper is second only to silver. The purer the copper, the better the electrical conductivity in the wire.

The main properties of copper are as follows:

(1) Electrical conductivity is good, and the electrical conductivity is 91.3% of that of silver.

(2) Good thermal conductivity, thermal conductivity is 73% of silver.
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(3) Good plasticity, easy forming and processing.

(4) Strong corrosion resistance. Hydrochloric acid and dilute sulfuric acid have little effect on copper. It has strong corrosion resistance in dry air and is prone to poisonous patina (basic copper carbonate) in humid air containing CO.

(5) Various alloys with different properties can be made with other non-ferrous metals.

Conductive copper used in wire and cable is usually made of copper with a copper purity of 99.9%. Under special conditions, oxygen-free copper or non-magnetic highly pure copper can be used as the conductor of the wire.

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