a.c. voltage test

Test condition acc. to IEC 62053-21 for protective class II:
a) Apply 4 kV for 1 minute to the meter terminals while all terminals with 40 V or less are pulled to ground.
b) Apply 2 kV for 1 minute between circuits not intended to be connected together in service
No discharging or sparking is allowed.

a.c. voltage test
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