Electric installation is one of the key infrastructure projects affecting people's lives, and an essential construction project for every rural community. Whether it's a large-scale or small-scale construction project, cable issues are the core concerns during the construction process. Moreover, cable engineering directly involves safety issues related to human life and requires high attention.

What are the precautions to take during cable installation?

1. Mechanical damage caused by the bend in power cables:

Due to the larger outer diameter of power cables, transportation and laying can be quite challenging. Power cables also have strict requirements for turning radii. During cable construction, efforts should be made to minimize the torsion experienced by the cables. When cables are bending or left with excess length, they should be allowed to naturally curve to prevent internal mechanical damage.

2. Large Current Power Cable-Induced Eddy Current

During the construction of power cables, there are installations using steel supports, steel protective conduits, and cable clips with overhead laying. Any situation where a steel (iron) closed loop is formed around the power cable is susceptible to the generation of eddy currents, particularly in high current power cable systems where eddy currents are more pronounced. Therefore, the power engineering company advises that measures must be taken during cable construction to prevent the formation of a steel (iron) closed loop around the cable, in order to avoid the occurrence of eddy current phenomena.

3. Be mindful of moisture prevention in power cable insulation.

It is understood that most faults in medium and low-voltage power cables occur at the intermediate joints and terminal heads. These faults are primarily due to poor sealing and moisture intrusion, which lead to a decrease in insulation strength. Since medium and low-voltage power cable networks commonly employ a branching supply method, with a large number of terminal heads, ensuring proper sealing and blocking of the intermediate joints and terminal heads is a crucial measure for guaranteeing the safe and reliable operation of the cables.