Good maintenance practices and periodic testing of the insulation should be the rule rather than the exception.
良好的保养和定期的绝缘检测应成为制度而不是偶尔为之。
There is an electrical preventive maintenance task assigned to the Ground Fault Circuit Interrupter, that requires periodic testing of the unit.
应指定接地故障断路器的电气预防维护任务，此项任务要求对装置进行定期测试。
There is an electrical preventive maintenance task assigned to the Ground Fault Circuit Interrupter, that requires periodic testing of the unit.
应指定接地故障断路器的电气预防维护任务，此项任务要求对装置进行定期测试。
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