标准号:IEC 61557-9:2023 EN-FR 标准名称:用于保护措施测试、测量或监控的电气安全在AC至1000V和DC至1500V的低电压配电系统-第9部分:IT系统绝缘故障定位设备 英文名称:Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitor...
标准号:IEC 61557-12:2018/AMD1:2021 EN-FR 标准名称:修正案1 -交流额定电压不大于1 000V、直流额定电压不大于1 500V的低压配电系统的电气安全-用于保护措施测试、测量或监控的设备-第12部分:功率计量和监控设备(PMD)的电气安全 英文名称:Amendment 1 - Electrical safety in low voltage distribution systems ...
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