IEC 60521:1976

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

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).

SDO:

IEC

Language:

English

ICS Codes:

91.140.50

Status:

Revised

Publish date:

1975-12-31

Standard Number:

IEC 60521:1976