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How to identify inferior cables(4)?

Latest company news about How to identify inferior cables(4)?

4. Wire and cable with unqualified conductor resistance
Conductor resistance is an important indicator for evaluating the compatibility of wire and cable conductor materials and cross-sections. When the conductor resistance exceeds the standard, the loss of the current passing through the line is increased, and the heating of the wire and cable is aggravated. The main reason for the unqualified conductor resistance is that some companies shrink the copper material, which accounts for 80% of the raw material cost, in order to reduce the cost, reduce the cross-sectional area of the conductor or use recycled copper with too high impurities, which causes the conductor resistance of the wire and cable to seriously exceed the standard. , In the process of use, in addition to easily causing fire, it will also accelerate the aging of the insulating layer covering the wire.

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