MCB relevant national standards

GB 10963-1989 | breakers for household and similar
GB 14048.2-1994 | voltage switchgear and control voltage circuit breakers (equivalent international standard IEC 60947-2)
GB 16916.1-1997 | household and similar purposes without integral overcurrent protection for residual current operated circuit breaker (RCCB) - Part 1: General rules
GB 16916.21-1997 | household and similar mcb circuit breaker  without integral overcurrent protection for residual current operated circuit breaker (RCCB) Part 2.1: general rules to RCCB functionally independent of line voltage applicability RCCB
GB 16916.22-1997 | household and similar purposes without integral overcurrent protection for residual current  electric transformer circuit breaker (RCCB) Part 2.2: General rules on motor function and line voltage applicability RCCB
GB 16917.1-1997 | household and similar uses overcurrent protection for residual current operated circuit breaker (RCBO) - Part 1: General rules
GB 16917.21-1997 | household and similar uses overcurrent protection for residual current operated circuit breaker (RCBO) Part 2.1: general rules to RCCB functionally independent of line voltage applicability RCBO
GB 16917.22-1997 | household and similar uses overcurrent protection for residual current operated circuit breaker (RCBO) Part 2.2: General rules on motor function and line voltage applicability RCBO
GB 1984-1989 | AC high voltage circuit breakers
GB 4876-1985 | AC high voltage circuit breaker line charging current switching test
GB 7675-1987 | AC high voltage circuit breaker opening and closing of the capacitor bank test