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Analysis of the difference between power cables and control cables

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Analysis of the difference between power cables and control cables

作者: Release Date: 2018-07-21 Author: Click:

Power cables are used to transmit electrical energy, that is, the voltage and current passing through the cable are large, the general insulation level is high, the cross-section of the wire is large, and a cable includes 5 core wires.

As a control cable , the secondary transmission of low-current electrical signals is mainly: for example, the task of driving and controlling contactors and relays, transmitting audio and video signals, etc., the power load transmitted by the wires is small, the voltage level is low, and the control The number of external core wires of the cable is large, and the conductor can be provided with a separate shielding layer.

Overhead lines

Talking about the difference between power cables and control cables

Power cables are 0.6 / 1kv such as VV, YJV

Control cables are 450 / 750v such as KVV, KVVP

Ordinary power cables are generally used within 5 cores for strong electricity

There are more control cable cores, and sometimes there are different requirements from customers, ranging from 37 cores, but there are more cores.

Overhead lines

Power cables are used to transmit and distribute high-power electrical energy in the main branch line of power fragmentation. The control cables indirectly transmit electrical energy from the power distribution points to the power connection lines of various electrical equipment. The extra voltage of the power cable is usually 0.6 / 1kV and above, and the control cable is mainly 450 / 750V. When the power cables and control cables of different specifications are consumed, the thickness of the insulation and sheath of the power cables is thicker than that of the control cables.


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Keywords: overhead line

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