![]() electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c.—Equipment for testing, measuring or monitoring of protective measures—Part 9: Equipment for insulation fault location in IT systems 交流1000V和直流1500V以下低压配电系统电气安全 防护措施的试验、测量或监控设备 第9部分:IT系统中的绝缘故障定位设备 |
![]() electrical safty in low voltage distribution systems up to 1000V a.c and 1500V d.c—Equipment for testing, measuring or monitoring of protective measures—Part 8: Insulation monitoring devices for IT systems 交流1000V和直流1500V以下低压配电系统电气安全 防护设施的试验、测量或监控设备 第8部份:IT系统中绝缘监控装置 |
![]() Fire hazard testing for electric and eletronic products—Part 39: Toxicity of fire effluent—Use and interpretation of test results 电工电子产品着火危险试验 第39部分:燃烧流的毒性 试验结果的使用和说明 |
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