1. Make insulation according to the environment

Usually the temperature range required by the high and low voltage switchgear is between -10 ° C and 45 ° C, if the ambient temperature is too high, the conductivity of the metal parts will be reduced, and the resistivity will be increased, and the oxidation will gradually accelerate, and the insulation strength of the insulating parts will be reduced. Of course, too cold environment will also make the equipment components produce large internal stress, thus destroying the reliability of the insulation parts. Therefore, according to the situation, it is necessary to increase some insulation electrical appliances, and insulation protection measures, and the surrounding environment requires no fire source, no pollution, and non-corrosive chemicals.

2. Dust prevention and check

The metal equipment used on the high and low voltage switchgear daily in order to do a good job of rust and corrosion prevention, can be coated with the appropriate paint, in order to eliminate the impact of dust accumulation on the insulation performance, should also be regularly used to clean the dust in the equipment, for the daily operation of the switch, to regularly check the loosening of its fixed screws, do a good job of lubrication and fastening work.

3. The internal wiring of high and low voltage switchgear should be reasonable

Sometimes because of production needs, it is necessary to temporarily connect the power supply from the switch cabinet for the use of high-voltage equipment, in strict accordance with the electrical safety management regulations when wiring the switch cabinet, the use of good insulation performance of the wire, its safety should be able to fully meet the needs of the electrical load, so that electrical professionals operate, requiring the wiring to be smooth without tying. There is no entanglement between the lines, and reliable grounding work is done. When the temporary power supply is not needed, it is necessary to remove the newly added power supply facilities and clean up the site in time.