RECOMMENDED FREQUENCIES OF FIXED WIRING PERIODIC INSPECTION AND TESTING
Electrical Installations
| TYPE OF INSTALLATION | ROUTINE CHECK | MAXIMUM PERIOD BETWEEN INSPECTIONS AND TESTING | |
|---|---|---|---|
| Domestic | - - |
Change of occupancy/10 years |
|
| Commercial | 1 year |
Change of occupancy/5 years |
|
| Educational establishments | 4 months |
5 years |
|
| Hospitals | 1 year |
5 years |
|
| Industrial | 1 year |
3 years |
|
| Residential accommodation | at change of occupancy/1 year |
5 years |
|
| Offices | 1 year |
5 years |
|
| Shops | 1 year |
5 years |
|
| Laboratories | 1 year |
5 years |
|
| BUILDINGS OPEN TO THE PUBLIC | |||
| Cinemas | 1 year |
3 years |
|
| Church installations | 1 year |
5 years |
|
| Leisure complexes excluding swimming pools | 1 year |
3 years |
|
| Places of public entertainment | 1 year |
3 years |
|
| Restaurants and hotels | 1 year |
5 years |
|
| Theatres | 1 year |
3 years |
|
| Public houses | 1 year |
5 years |
|
| Village halls/Community centres | 1 year |
5 years |
|
| SPECIAL INSTALLATIONS | |||
| Agricultural & horticultural | 1 year |
3 year |
|
| Caravans | 1 year |
3 year |
|
| Caravan parks | 6 months |
1 year |
|
| Highway power supplies | as convenient |
6 years |
|
| Marinas | 4 months |
1 year |
|
| Fish farms | 4 months |
1 year |
|
| Swimming pools | 4 months |
1 year |
|
| Emergency lighting | Daily/monthly |
3 years |
|
| Fire alarms | Daily/weekly/monthly |
1 year |
|
| Launderettes | 1 year |
1 year |
|
| Petrol filling stations | 1 year |
1 year |
|
| Construction site installations | 3 months |
3 months |
Reference: Inspection and Testing Guidance Note 3; The IET, London, 2004 p 68