BS 7654:2010 - Page 2

Specification for single-phase street lighting cut-out assemblies for low-voltage public electricity distribution systems. 25 A rating for highway power supplies and street furniture. | Status: Confirmed, Current

1 Scope and references

1.1 Scope

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.

NOTE Clauses and subclauses, tables, figures and annexes of the general rules thus applicable are identified by reference to BS EN 60947‑1:2007, for example, BS EN 60947‑1:2007, 1.2.3; BS EN 60947‑1:2007, Table 1; BS EN 60947‑1:2007, Annex A.