Residual current operated circuit-breakers for household and similar use. Specific requirements for RCDs with screw-type terminals for external untreated aluminium conductors and with aluminium screw-type terminals for use with copper or with aluminium conductors— 20 стр.
Residual current operated circuit-breakers for household and similar use. Particular requirements for RCDs with screwless-type terminals for external copper conductors— 16 стр.