Power cable (power cord) in the main trunk of the power system for the transmission and distribution of the electrical energy of the major functions, control cables from the distribution point of the power system electrical energy directly transmitted to the power connection line in a variety of electrical equipment and apparatus. Rated voltage of the power cable is generally 0.6/1kV and above, the control cable 450/750V. Power cables and control cables of the same specifications as in the production of power cable insulation and sheath thickness thicker than the control cable.
First, the control cables are electrical equipment cable and power cable 2 cable in five categories.
Control cable standard is 9330, the standard of the power cable is GB12706
Control cables insulated cores color is usually black print on white, there are power cables low voltage are generally color separation.
Cross-section of the control cables are generally not more than 10 square feet, the power cable is the transmission of electricity, are generally large cross-section.
Due to the above mentioned specifications of the power cable can generally be as large as 500 square feet (conventional manufacturers can produce the range), and then a big cross section as do the manufacturers is relatively small, while the control cable cross-section is generally smaller, the maximum is generally not more than 10 square feet.
From the cable core number sense, the power cable according to the grid up to the general five core, the transmission control signal and control cables, core number, according to the standard terms of 61 core, but can also be produced according to user requirements |
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