This British Standard specifies the requirements for street lighting cut-out assemblies of 25 A rating for the protection of power supplies to highway lighting and street furniture. The cut-out assemblies are for use on 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 cut-out assemblies can also be used on distribution systems owned by lighting and highway authorities.

The provisions of the general rules dealt with in BS EN 60947‑1:2007 are applicable to this standard when specifically called for.