There are many reasons why YJV cables heat up during use, mainly including the following aspects:
1. The resistance of the cable conductor does not meet the standard.
Conductor resistance is an important factor affecting the heat generation of cables. If the conductor resistance is too large, it will cause the cable to generate too much heat under normal operating current, which in turn will increase the temperature of the cable. The reason why the conductor resistance does not meet the standard can be caused by factors such as poor conductor material quality, conductor cross-sectional area that is too small, or conductor length that is too long.
Second, the cable model is not properly selected.
Different types of cables have different current carrying capacity and permissible temperature ranges. If the cable model is not selected properly, the current carrying capacity of the cable in actual use exceeds its allowable range, which will cause the cable to heat up. Therefore, when choosing a cable model, you need to choose a suitable model according to the actual use to ensure the normal operation of the cable.
3. Improper installation and laying of cables.
The installation and laying method of the cable has a great impact on the heat dissipation effect of the cable. If the cable is not installed and laid properly, so that the cable comes into contact with other objects or is pressed under heavy objects, it will lead to poor heat dissipation of the cable, which in turn will cause the cable to heat up. Therefore, when installing and laying cables, it is necessary to follow relevant norms and standards to ensure the quality of cable installation and laying.
Fourth, the ambient temperature is too high.
Excessive ambient temperature is also one of the causes of cable heating. If the cable is installed in a high-temperature environment, or if it is operated in a high-temperature environment, it will cause the cable temperature to rise, which in turn will cause the cable to heat up. Therefore, when selecting cables, it is necessary to consider the influence of ambient temperature and select cable materials with good high temperature resistance.
To sum up, there are many reasons why YJV cables are heated during use, which need to be analyzed and dealt with according to the specific situation. In order to prevent the occurrence of cable heating problems, it is necessary to start from many aspects, including the selection of good quality conductor materials, the selection of appropriate cable models, the installation and laying methods that follow the specifications, and the reduction of ambient temperature. At the same time, it is also necessary to strengthen the maintenance of cables, regularly inspect and repair cables, and ensure their normal operation and service life.