Найдено: 2
Overview IEC 62054-11:2004 – “Electricity metering (a.c.) – Tariff and load control – Part 11: Particular requirements for electronic ripple control receivers” is an International Electrotechnical Co…
Overview IEC 62054-21:2004 - Electricity metering (a.c.) - Tariff and load control - Part 21 - specifies particular requirements for the type test of newly manufactured indoor time switches with oper…