SN EN 60439-3:1993现行
Low-voltage Switchgear And Controlgear Assemblies; Part 3: Particular Requirements For Low-voltage Switchgear And Controlgear Intended To Be Installed In Places Where Unskilled Persons Have Access For Their Use; Distribution Boards
出版：Swiss Standards
专家解读视频
Describes supplementary requirements for enclosed distribution boards (DBU), which are stationary, type tested assemblies (TTA) for indoor use, containing protective devices and designed for either domestic purposes or for places where unskilled persons have access for their use. Control and/or signalling devices may also be included. They are for use on a.c., with a voltage to earth not exceeding 300V. The outgoing circuits contain short-circuit protective devices, each rated current not exceeding 125 A with a total incoming load current not exceeding 250 A.
NF EN 60439-3:1991 - Identical
NBN EN 60439-3:1994 - Identical
I.S. EN 60439-3:1991 - Identical
IEC 60439-3 Ed. 1.2 - Identical
BS EN 60439-3:1991+A2:2001 - Identical
DIN EN 60439-3:2002 - Identical
UNE EN 60439-3:1994 - Identical
SS EN 60439-3 Ed. 1 (1991) - Identical
DIN EN 60439-3 (2002-05) - Identical
