What causes cable aging?

What causes cable aging?

During overload operation, due to the thermal effect of the current, when the load current passes through the cable, it inevitably causes the conductor to heat up. At the same time, the skin effect of charges and the eddy current loss and insulation loss of steel armor will also generate additional heat, causing the cable temperature to rise.

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What is wire aging? How to distinguish

Circuit aging is a problem that we need to pay special attention to in our daily lives. After the aging of wires, the insulation performance decreases, making it easy to cause short circuits. Especially in humid weather, although the appearance of the wire is intact, the insulation performance has decreased. When moisture penetrates into the metal conductor, a short circuit occurs and a fire occurs. So, what is wire aging? How to identify the degree of aging of wires? Next, Huaqiang Cable will take you to learn more.

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Types of cable accessories for 35kV and below

In the cable industry, cable terminals are installed at the end of the cable line, which has certain insulation and sealing properties, so that the cable can be connected to other electrical equipment. And cable joints are installed between cables to connect cable conductors, forming a continuous circuit and having certain insulation and sealing properties. The main function of power cable accessories is to ensure the insulation and sealing of cable terminals and joints through the connection and splicing of cables. So it is widely used in the power system, and the types of products are also diverse.

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What is "insulation" and what are the safety functions of insulation products?

Insulation can usually be divided into three categories: gas insulation, liquid insulation, and solid insulation. In practical applications, solid insulation is still the most widely used and reliable insulation material.

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You must know these cable knowledge

Selection of wire and cable models: When choosing wires and cables, consideration should be given to their intended use, installation conditions, and safety. For example, according to different purposes, power cables, overhead insulated cables, control cables, etc. can be selected;

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