The Difference Between Power Cable and Control Cable


The power cable is generally used for transmitting electric energy. The voltage connected to the cable and the current passing through it are relatively large. Generally, the insulation level is relatively high, the conductor cross section is large, and the inner part of one cable contains at most 5 core wires.

Control cable, mainly transmitted by small current electric signal: such as connecting drive control contactor, relay operation, transmitting audio signal, etc., the wire transmits less power load, lower voltage level, and controls the number of core wires inside the cable There are many, and it is possible that the wires will have a separate shield.

The power cable is used to transmit and distribute large functional power in the main line of the power system, and the control cable directly transfers the electric energy from the power distribution point of the power system to the power connection line of various electrical equipment appliances. The rated voltage of the power cable is generally 0.6/1kV and above, and the control cable is mainly 450/750V. In the production of power cables and control cables of the same specification, the insulation and sheath thickness of the power cables are thicker than the control cables.

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