Shielding Of Power Cables

Conductor shielding:

According to relevant industry standards, cables with rated voltage exceeding 2KV need conductor shielding. Conductor shielding, also known as inner shielding, is used to form a smooth layer on the relatively rough surface of the stranded conductor to reduce the concentration of electric field at the insulation interface.

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What are the Product Types of Cables? What is the Basic Knowledge of Cables?

custom kinds of cables

Bare Conductor Wire
Bare wire and bare conductor products refer to the conductive wire without insulation and sheath. It mainly includes three series of products: bare single wire, bare stranded wire and profile wire.

Copper and aluminum single wire: including soft copper single wire, hard copper single wire, soft aluminum single wire, hard aluminum single wire. Mainly used as a variety of wire and cable semi-products, a small amount of communication wire and motor appliances manufacturing.

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Performance Of Power Cables

  1. Electrical Properties Of Power Cables
    Electrical conductivity — Most products require good electrical conductivity, and individual products require a certain resistance range.
    Electrical insulation performance — insulation resistance, dielectric coefficient, dielectric loss, electrical resistance characteristics, etc.
    Transmission characteristics — refers to high-frequency transmission characteristics, anti-interference characteristics, etc.

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Do You Know the Reason for Multiple Layers of Power Cables?

The following description is for the 10kV power cable.

The outermost layer of the 11kv power cable is generally rubber or rubber composite sheath. The function of this layer is firstly to insulate, but also to protect the cable from damage.

Power cables are divided into high voltage and low voltage cables. If it is high voltage, there will be a layer of resin-like filler inside, which serves as insulation. In high-voltage cables, this layer is the most important part of the insulation. The low voltage does not have this layer, and then there will be something like a ribbon wrapped inside, which is to fix each core of the cable and fill the gap in the middle.

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