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IEC 60521:1988 ed2.0
Class 0.5, 1 and 2 alternating-current watthour meters
77 стр.
Заменен
Электронный (pdf)Печатная копия
384.94 CHF (включая НДС 20%)
Разработчик:
Зарубежные/IEC
ICS:
91.140.50 Electricity. Including electric energy meters in buildings, emergency electrical supplies, etc. / Системы электроснабжения. Включая аварийное электроснабжение и т.д.
Описание
Applies only to newly manufactured induction type watt-hour meters of accuracy classes 0.5, 1 and 2, for the measurement of alternating current electrical active energy of a frequency in the range 45 Hz to 65 Hz and to their type tests only.This publication supersedes IEC 60043 (1960), 60170 (1964) and 60280 (1968).