IEC 60664-1 Insulation coordination for equipment
低压系统内设备的绝缘配合 – 第1部分:原则、要求和试验
Insulation coordination for equipment within low-voltage systems – Part 1: Principles, requirements and tests
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Insulation coordination for equipment within low-voltage systems – Part 1: Principles, requirements and tests
Recommended Practice for Grounding of Industrial and Commercial Power Systems