Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCB)—Part 21:Applicability of the general rules to RCCB functionally independent of line voltage
NORMA vydána dne 19.6.2008
Designation standards: GB/T 16916.21-2008
Publication date standards: 19.6.2008
Country: Chinese technical standard
Kategorie: Technické normy GB