Requirements for distribution assemblies for control and distribution of electricity from a three-phase reduced low voltage a.c. system at declared voltage up to 110 V (63.5 V to earth) or a single-phase system at declared voltage up to 110 V (55 V to earth).
BS 4363:1998 history
1998BS 4363:1998+A1:2013 Specification for distribution assemblies for reduced low voltage electricity supplies for construction and building sites
1998BS 4363:1998 Specification for distribution assemblies for reduced low voltage electricity supplies for construction and building sites