Methods of test for electric strength of solid insulating materials - additional requirements for tests using direct voltage 固体绝缘材料介电强度试验方法.直流电压测试补充要求
2.
Electric strength of insulating materials - test methods - part 2 : additional requirements for tests using direct voltage 绝缘材料的介电强度.试验方法.第2部分:用直流电压测试的补充技术要求