GB/T 21697-2022低压配电线路和电子系统中雷电过电压的绝缘配合国家标准
英文:Insulation coordination of lightning overvoltage for low-voltage distribution wiring and electronic systems GB/T 2169...
英文:Insulation coordination of lightning overvoltage for low-voltage distribution wiring and electronic systems GB/T 2169...