As an important component of the power system, wires and cables must be regularly inspected and maintained during use, which can ensure our daily electricity safety and prolong the service life of wires and cables. The following sections will share the matters needing attention in the daily use of wires and cables.

1. External invasion

If wires and cables are laid in areas with particularly strong acid and alkali properties, they will usually be eroded. The thickness of the protective layer is eroded by organic chemistry or electrolysis for a long time, resulting in invalid thickness of the protective layer, reduced insulation layer and cable failure. Therefore, before laying wires and cables, it is necessary to analyze the local soil quality.

2. Natural weather

During the installation of wires and cables, try to avoid exposure to the sun or heavy rain, because over time, wires and cables will cause faster embrittlement of the sheath, reducing the service life of wires and cables.

3. Suitable temperature

The external natural environment and heat source where the cable is located will also lead to excessive temperature of the cable and thermal breakdown of the insulation layer, leading to explosion and ignition.

4. Overload operation

The wires and cables shall not be overloaded. This is because of the thermal effect of the current. The load electric flow will certainly cause the electric conductor to burn. In addition, the skin effect of the charge, the eddy current loss of its steel armor, and the dielectric loss of the insulation layer will also generate additional heat, thus causing the cable temperature to rise. During long-term overload operation, excessive temperature will accelerate the embrittlement of the insulation layer, resulting in thermal breakdown of the insulation layer.

Wires and cables are one of the most important elements of the current cable system. In our daily application, we need to check and repair at any time, and take some defensive measures in advance, which can extend the service life of wires and cables.