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About UsHuzhou Yuyi Optoelectronic Intelligent Equipment Co., Ltd. (formerly Huzhou Yuyi Electric Automation Equipment Co., Ltd.), founded in 2011, is a professional equipment service integrator dedicated to factory digitalization
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What are the differences between power cable and control cable
Published:
2022-11-29 14:54
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Power cables and control cables are often heard in engineering projects, but do you understand the differences between power cables and control cables? The following section will give you a detailed introduction. Power cables and control cables are often heard in engineering projects, but do you understand the differences between power cables and control cables? The following section will give you a detailed introduction.
1. The difference between the executive standards of power cables and control cables: the standard of control cables is 9330, and the standard of power cables is GB12706.
2. Color difference between power cable and control cable core: the color of the insulated core of control cable is generally black with white characters, and the color of low-voltage power cable is generally separated.
3. The difference between the functions of power cables and control cables: the control cables directly transmit electric energy from the distribution points of the power system to the power connection lines of various electrical equipment and appliances, while the power cables are mainly used for the transmission of strong electric energy in the power generation, distribution, transmission, transformation and power supply lines. The current passing through the power cables is large, and the power cables are used to transmit and distribute large functional electric energy in the trunk lines of the power system.
4. The difference between the section of power cable and control cable: the power cable is a primary load conductor, the current carrying capacity increases with the increase of power, and the application section of the conductor must also increase with the increase of current. Therefore, the specification of power cable is generally large, up to 500 square meters (the range that can be produced by conventional manufacturers), and there are relatively few manufacturers with the largest section, while the control cable is a secondary command conductor, The current carrying operation of contactors and other devices is controlled. The load current is very small, and the wire section is very small. Therefore, the section of the control cable is generally small, generally not more than 10 square meters.
5. The difference between the number of cores of power cable and control cable: the number of cores of power cable is small, including single core, two core, three core, four core (three-phase four wire system) and five core (three-phase five wire system). According to the requirements of the power grid, it is generally five core. The control cable is used to transmit control signals, with a large number of cores, ranging from 2-61 cores, or even more. The control cable also adopts various core structures, shielding and other measures to obtain satisfactory EMC effect.
6. Difference between rated voltage of power cable and control cable: the rated voltage of power cable is generally 0.6/1kV and above, and that of control cable is mainly 450/750V.
7. The difference between the wire covers of power cables and control cables: the wire covers of power cables shall have sufficient compressive strength, tensile strength, temperature resistance and corrosion resistance. Control cable requirements are relatively low. During the production of industrial electrical power cables and control cables of the same specification, the insulation and sheath thickness of power cables are thicker than that of control cables.
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What are the differences between power cable and control cable
Power cables and control cables are often heard in engineering projects, but do you understand the differences between power cables and control cables? The following section will give you a detailed introduction. Power cables and control cables are often heard in engineering projects, but do you understand the differences between power cables and control cables? The following section will give you a detailed introduction.
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