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This Document Has Been Superseded
A newer publication replaces it: BSI BS EN IEC 61439-4
Specification for distribution assemblies for reduced low voltage electricity supplies for construction and building sites
This British Standard specifies the requirements for distribution assemblies for the 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).
These assemblies are for use for the protection and control of electricity supplies on construction and building sites in the UK.
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).
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