1.years without maintenance, but due to the difference in the use environment, still need to carry out necessary inspection, maintenance.
2.Depending on the working environment, the circuit breaker body should be properly checked within 6~12 months. After the appearance inspection, clean the dirty and damp part of the equipment surface, wipe the insulation surface with a dry cloth,
Then wipe away other filth with a silk cloth coated with detergent (note that the detergent can be applied to plastic or synthetic plastic materials).
3.When the circuit breaker is placed for a long time, the moving part of the circuit breaker may cause negative hysteresis.
4.The circuit breaker shall be insulated tested at least once a year to determine whether the circuit breaker vacuum interrupter leakage or other external causes of insulation strength reduction.
5.For frequent operation site, should pay attention to strictly control in the range of operation times stipulated by technical conditions, can not continue to use beyond the service life.
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