DIN 43857-1-1978 最大额定电流在60A以下的、不带仪表互感器、模塑绝缘壳体电度表.单相电度表的主要尺寸
Watthour meters in moulded insulation case without instrument transformers, up to 60 A rated maximum current; principal dimensions for single-phase meters
Watthour meters in moulded insulation case without instrument transformers, up to 60 A rated maximum current; principal dimensions for single-phase metersFür den Geltungsbereich dieser Norm bestehen keine entsprechenden regionalen oder internationalen No