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Briefly describe the difference between cable core and quality?

Briefly describe the difference between cable core and quality?

A multi-core cable is called a multi-core cable. Common multi-core wires are: 10 cores, 12 cores, 16 cores, 24 cores, 32 cores, etc. The multi-core cable is an upgraded version of the single-core cable. Due to the fact that there are more and more occasions for three-phase four-wire power supply, three-phase five-wire power supply and multi-circuit power supply in actual use

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Will the current-carrying capacity of the cables be reduced when a large number of cables are laid in groups?

Will the current-carrying capacity of the cables be reduced when a large number of cables are laid in groups?

When the cable is close to other loaded cables or heat sources, or when the ambient temperature exceeds the ambient temperature that specifies the cable's current-carrying capacity, the rated current-carrying capacity of the cable must be reduced. The normal ambient temperature of a cable installation is the temperature at which the cable is installed when the cable is not under load

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What are the advantages of single-core and multi-core cables?

What are the advantages of single-core and multi-core cables?

The advantages of single-core cables are that the cross-sectional area ratio is small, it is not easy to be oxidized by air, it is resistant to short-circuit capacity impact, and has a long service life. The defect of single-core wire is that the wire is relatively hard, and it is inconvenient to pull the wire in some areas, so it is difficult to straighten it after bending, and it is very easy to damage the wire after continuous bending.

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Test method for dielectric strength of insulated wire and cable

Test method for dielectric strength of insulated wire and cable

The insulation strength of a wire and cable refers to the ability of the insulating structure and insulating material to withstand the action of an electric field without breakdown damage. In order to check the quality of wire and cable products and ensure the safe operation of the product, all insulation types of wires and cables are generally subject to insulation strength tests. .

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