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About UsHongsheng Wire and Cable Co., Ltd. is a key enterprise in Zhejiang Province specializing in the production of wires and cables, integrating industry, commerce, trade, production, education, and research. Its main production, processes, and testing equipment are all designed and configured according to international standards.
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ProductsEmploy scientific management and quality assurance systems based on GB/T19001—IS09001 and GB/T24001—ISO14001 environmental management systems to organize production management.
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Contact UsWe believe: Great achievements depend on quality. Your satisfaction is our eternal pursuit!
24
2021
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09
What are the differences in performance requirements between motor cables and ordinary cables?
We have discussed the issue of motor cables many times, but today, we will communicate with you based on the actual use characteristics of the motor. Let's analyze the differences in performance requirements between motor cables and ordinary cables. There are specific standards for motor leads that stipulate their basic performance. Usually called leads, the difference from other cables mainly stems from their specific operating environment.
Regarding motor use Cable We have discussed the issue of motor cables many times, but today, we will communicate with you based on the actual use characteristics of the motor. Let's analyze together the differences in performance requirements between motor cables and ordinary cables.
There are specific standards for motor leads, stipulating their basic performance. Usually called leads, the difference from other cables mainly stems from their specific operating environment.
In actual production and life, we encounter many cables. In most cases, Cable the physical distance between them is relatively fixed and remains relatively stationary. In addition to the electrical conductivity and insulation performance being the same as ordinary cables, there are also some special requirements in the following aspects.
1. Voltage level requirements
For motors with different rated voltages, the voltage level of the cable used must match it to meet the requirements of ground insulation and interphase insulation during the motor winding processing, assembly, and use. Generally, the voltage of a 380V motor cable is 500V, and a 500V cable can also meet the requirements of motors with rated voltages of 400V, 420V, and 440V. Especially for high and low voltage motors, the Cable important difference lies in the different voltage systems.
2. Heat resistance requirements
According to the requirements of different insulation levels of the motor, the temperature rise of the motor is specified in the technical conditions of the corresponding product, and the relationship between the motor winding temperature rise and temperature is discussed in detail. As an important component of the electrical part of the motor, the motor Cable leads also meet the insulation performance at the corresponding temperature.
3. Corrosion resistance requirements
For the process of installing the leads first and then dipping them in varnish, the leads also need to undergo the dipping and drying process together with the motor windings. The dipping itself will have a certain corrosive effect on the cable insulation layer, especially during the drying process. For some leads of poor quality, water immersion will cause serious problems such as cracking and brittleness of the insulation layer. In addition to the impregnation process, for some operating environments with corrosive gases, Cable there are also anti-corrosion requirements.
4. Softness requirements
Different from other Cable operating conditions, the activity space of motor cables is severely limited, especially for some capacity-increased motors, the usable space of the leads is very narrow, and bending is required during this period, so the cable has sufficient flexibility to facilitate the passage of the leads and ensure that its insulation layer is not damaged. Sufficient mechanical strength
During the operation of the motor, different degrees of vibration, especially during hot operation, will cause the leads, especially the parts with long free length, large movement space, and sharp burrs, so the wire is required to have Cable sufficient mechanical strength of the insulation layer to prevent ground faults caused by this.
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Guangzhou Baiyun International Airport
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2021-04-13
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Address: Central Industrial Park, Luqiao District, Taizhou City, Zhejiang Province
Fax: 86-576-82670077
