Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBO) Part 21Applicability of the general rules to RCBO functionally independent of line voltage
NORMA vydaná dňa 19.6.2008
Designation standards: GB/T 16917.21-2008
Publication date standards: 19.6.2008
Country: Chinese technical standard
Kategória: Technické normy GB