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DIN 43857-4:1974-12

Действует
Watthour meters in moulded insulation case without instrument transformers, up to 60 A rated maximum current; principal dimensions for meter terminal cover for poly-phase meters — 1 стр.
ICS
91.140.50 Electricity. Including electric energy meters in buildings, emergency electrical supplies, etc. / Системы электроснабжения. Включая аварийное электроснабжение и т.д.