IEC 60521:1976 Withdrawn

Class 0.5, 1 and 2 alternating-current watt-hour meters


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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 43 (1960), 170 (1964) and 280 (1968).

Additional information

Publication typeInternational Standard
Publication date1976-01-01
Available language(s)English/French, Russian
TC/SCTC 13 - Electrical energy measurement and controlrss
ICS91.140.50 - Electricity supply systems
File size2635 KB

The following test report forms are related:

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