Code of practice for protective earthing of electrical installations
This British Standard primarily provides recommendations and guidance on meeting the requirements for the earthing of electrical installations, including:
protective earthing of low voltage installations to BSÂ 7671:2008+A3:2015;
the interface between LV and HV substations of 11 000/400 V to BS EN 61936‑1:2010+A1:2014 within buildings; and
protective earthing and changeover switch arrangements for generators supplying low voltage installations.
The earthing of a system or installation is generally provided for reasons of safety.
This British Standard applies only to land-based installations in and around buildings. It does not apply to:
ships, aircraft or offshore installations;
earthing of medical equipment [see BSÂ ENÂ 60601 (all parts)];
special problems encountered with solid state electronic components;
equipment sensitive to static electricity;
requirements for functional earthing;
earthing of overhead lines between electrical installations; or
the internal earthing of equipment.
| SDO | BSI: British Standards Institution |
| Document Number | 7430 |
| Publication Date | Aug. 31, 2015 |
| Language | en - English |
| Page Count | 98 |
| Revision Level | 1 |
| Supercedes | |
| Committee | GEL/600 |