BS EN 60439-3:1991 Specification for low-voltage switchgear and controlgear assemblies. Particular requirements for low-voltage switchgear and controlgear assemblies intended to be installed in places where unskilled persons have access to their use - Distribution boards (+A2:2001 incorporating corrigenda April 1994, December 2005 and November 2009) (Withdrawn)

Publication Year

1991

Document Status

Withdrawn, cited in regs

Abstract

Provides characteristics and requirements for enclosed distribution boards (DBU); stationary, type tested assemblies (TTA) for indoor use. These distribution boards contain protective devices, and could also include control and/or signalling devices. They are intended for use either in domestic (household) applications or in other places where unskilled persons have access for their use. Electrical characteristics state they are for use on a.c., with a nominal voltage to earth not exceeding 300V. The outgoing circuits contain short-circuit protective devices, with each having a rated current not exceeding 125A with a total incoming load current not exceeding 250A. The nominal voltage to earth in an IT system is taken as the nominal voltage of the system.

Document History

Superseded by BS EN 61439-3:2012. Supersedes BS 5486-12:1989 and BS 5486-13:1989. Amendment 8302 dated August 1994 - Implementation of IEC amendment 1:1993 with CENELEC endorsement A1:1994. Amendment 13466 dated 1 May 2002 - Implementation of IEC amendment 2:2001 with CENELEC endorsement A2:2001. Amendment 16213 is Corrigendum No.1 dated 30 June 2006 - Correction to reference of UK A-deviation in Annex ZA. Amendment 17184 is Corrigendum No.2 dated 31 July 2007 - Addition of supersession details. Amendment dated 28 February 2010 - Implementation of CENELEC corrigendum November 2009: Annex 2A replaced.

ISBN

9780580636486

Publisher Information