GB 16917.22-1997 Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses(RCBO) Part 2.2: Applicability of the general rules to RCBO functionally dependent on line voltage
Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses(RCBO) Part 2.2: Applicability of the general rules to RCBO functionally dependent on line voltage