British Standards Document
BS EN 60439-3
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
https://doi.org/10.3403/02556733U
BS EN 60439-3 is maintained by PEL/17. The current release of this standard is:
BS EN 60439-3:1991+A2:2001 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
https://doi.org/10.3403/02556733 (published 28/06/1991)
This standard is available from the following sources:
Other historical versions of this standard document also exist: