BS 7656:1993+A1:2013 PDF

Scope: This standard specifies the requirements for single-pole fuses (cut-outs) of 400 A rating which are mounted on poles for low-voltage network protection, sectioning or sub-fusing. The fuses (cut-outs) may be mounted on a high-voltage/low-voltage transformer pole where the high-voltage equipment earth is led down the pole. They are for use on a single phase, or one phase of a three phase low-voltage public electricity supply system with a maximum voltage up to 440 V a.c. and at a frequency of 50 Hz, the neutral being effectively earthed. The provisions of the general rules dealt with in BS EN 60947-1 are applicable to this standard where specifically called for.

BS 7656:1993+A1:2013 history

1993 BS 7656:1993+A1:2013 Specification for low-voltage pole-mounting fuses (cut-outs). 400A rating
1993 BS 7656:1993 Specification for low-voltage pole-mounting fuses (cut-outs) - 315 A rating