
Conduits for electrical purposes. Outside diameters of conduits for electrical installations and threads for conduits and fittings
出版:British Standards Institution

專家解讀視頻
Provides the dimensional requirements for threads used in associated fittings. It is not applicable to extra heavy duty rigid steel conduits as specified in IEC 60981.
? British Standards Institution 2013
IEC 60423 Ed. 2.0 - Modified