SS EN 60439-3 Ed. 1 (1991)現行
Low-voltage Switchgear And Controlgear Assemblies - Part 3: Particular Requirements For Low-voltage Switchgear And Controlgear Assemblies Intended To Be Installed In Places Where Unskilled Persons Have Access For Their Use - Distribution Boards
出版：Standardiserings-Kommissionen I Sverige
專家解讀視頻
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.
I.S. EN 60439-3:1991 - Identical
IEC 60439-3 Ed. 1.2 - Similar
BS EN 60439-3:1991+A2:2001 - Identical
DIN EN 60439-3 (2002-05) - Identical
SN EN 60439-3:1993 - Identical
NBN EN 60439-3:1994 - Identical
NF EN 60439-3:1991 - Identical
UNE EN 60439-3:1994 - Identical
