Power cable and control cable are two common cable categories in power system, but do you know the difference between them? Next, I will discuss with you.
Power cables are used to transmit and distribute high-power electric energy in the trunk line of the power system, and the rated voltage is generally 0.6/1kV and above. The control cable belongs to the cable for electrical equipment, which is mainly used to directly transmit electric energy from the distribution point of the power system to the power connection lines of various electrical equipment and appliances, and the rated voltage is 450/750V. During the production of power cables and control cables of the same specification, the insulation and sheath thickness of power cables are thicker than that of control cables. This is a common difference between the two. In addition, the following aspects can be distinguished:
Control cable
1. The standard of control cable is GB/T9330.
2. The color of the insulated core of the control cable is generally black and white.
3. The section of control cable generally does not exceed 10 square meters.
4. In terms of cable section, the control cable is generally 1-6 square meters, and the section of control cable is generally small, and the large section is generally not more than 10 square meters.
5. In terms of the number of cable cores, the control cable is used to transmit control signals, with a large number of cores. According to the standard, it is generally 2-37 cores, with 61 cores. However, it can also be produced according to user requirements.
6. The internal insulation materials are different. The control cable is plastic PVC insulation, and PVC can only withstand 70 degrees.
Power cable
1. The standard of power cable is GB/T12706
2. Low voltage of power cable is generally color separated.
3. Power cables are mainly used for power transmission, and generally have large cross-section.
4. In the cable section, the power cable is 1.5-300 square meters. Generally, the specification of power cable can be larger, and the section can be as large as 500 square meters (the range that conventional manufacturers can produce). However, the larger the section, the fewer manufacturers can do it.
5. In terms of the number of cable cores, according to the requirements of the power grid, power cables are generally 2-5 cores, many of which are 5 cores. Control cables are used to transmit control signals, with a large number of cores. According to the standard, power cables are generally 2-37 cores, with 61 cores, but they can also be produced according to user requirements.
6. The internal insulation material is different, and the power cable is polyethylene PE insulation. PE can withstand 90 degrees.
