Distinguish between power cables and control cables

Power cable and control cable are widely used in people’s production and life, but many people do not know the difference between the two. Power cables are used in power system mains to transmit and distribute large functional electric energy, while control cables transmit electric energy directly from power distribution points of the power system to power connection lines of various electrical equipment and appliances. Let me show you six tips for distinguishing power cables from control cables:
Rated voltage: The rated voltage of power cable is generally 0.6/1kV and above, and the control cable is mainly 450/750V.
Ii. Insulation and sheath thickness: when producing power cables and control cables of the same specification, the insulation and sheath thickness of power cables are thicker than that of control cables.


Three, look at the implementation of the cable standard. Control cables belong to electrical equipment cables, and power cables are two of the five categories of cables. The standard of power cable is GB12706, and the standard of control cable is GB/T 9330. The flame retardant cable should also meet the technical conditions of IEC337-8 standard.
Four, look at the color of the insulation core: the insulation sleeve of each inner core of low-voltage power cable is generally color-coded; And the color of the control cable insulation core is generally black printed in white.
Five, look at the cable section. Power cable is mainly to transmit power, generally is a large section, control cable section is generally not more than 10 square. Power cable specifications can generally be large, up to 500 square; The control cable section is generally small, the maximum is generally not more than 10 square.
The above is the introduction of the method to distinguish power cable and control cable, hoping to help you better complete the selection of cable.

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