Power cables are used to transmit and distribute the large power energy in the main line of the power system, and to control the power transmission line of the cable from the distribution point of the power system directly to the power supply connecting lines of various electrical equipment. The rated voltage of power cable is 0.6/1kV and above, the control cable is 450/750V. The same specifications of the power cable and control cable in production, the power cable insulation and sheath thickness than the control cable thickness.
(a) control cables are used in electrical equipment cable, and power cable is the five major categories of cable in the 2.
(two) the standard of control cable is 9330, the standard of power cable is GB12706
(three) control cable insulation wire color is generally black and white printing, low voltage power cable is usually color.
(four) the cross section of the control cable shall not be more than 10 square meters. The power cable is mainly used to transmit electricity.
As we mentioned above, the specification of power cable can be large, to 500 square (range of conventional manufacturers can produce), and then a big section can do like manufacturers is relatively small, and the control cable section is generally small, the largest is generally not more than 10 square.
From the cable core number, power cable according to the requirements of power grid, the most general for the 5 core control cable transmission control signal, core number, according to the standard in terms of more than 61 core, but also can be produced according to user requirements.