Precautions for cable construction in electric power installation

Power installation is one of the livelihood projects, but also every rural community are essential construction projects, however, whether large or small engineering construction, cable problems are the core problem in the construction, and cable engineering directly related to personal safety, must cause high attention.

So, what are the precautions in cable construction?

1. Mechanical damage caused by power cable turning:

Due to the large outer diameter of the power cable, it is difficult to transport and lay, and the power cable has strict requirements on turning radius. During cable construction, it is necessary to reduce the torsion force of the cable as much as possible. When the cable is turning and leaving the cable, the cable should be in natural bending to prevent internal mechanical damage.

2. Eddy currents caused by large current power cables

Power cable in construction, steel bracket, adopts steel protecting tube, using cable, card and overhead every week in power cable Χ steel (iron) closed loop formation, are likely to form vortex, especially in the large current power cable system, eddy current is bigger, so remind power engineering company, measures must be taken during the construction of the power cable, Make cable week χ can not form steel (iron) closed loop, prevent the cable caused by eddy current phenomenon.

3. Pay attention to the moisture-proof problem of power cables

It is understood that the middle and low voltage power cable faults are mostly cable intermediate joint and terminal head failure, and the middle joint and terminal head failure is mostly due to poor sealing, moisture invasion caused by insulation strength decline. And the middle and low voltage power cable network adopts dendritic power supply mode, the number of cable terminal head is more, so the cable terminal head and the middle joint block? Sealing off is one of the important measures to ensure the safe and reliable operation of cable.