Frequencies of Inspection of Electrical Installations

Type of installation

Routine check*

Maximum period between
inspections and
testing as necessary

Reference

 
General Installations

 

 

 

Domestic

 

Change of occupancy / 10 years

 

Commercial

1 year

Change of occupancy / 5 years

1,2

Educational establishments

4 months

5 years

1,2

Hospitals

1 year

5 years

1,2

Industrial

1 year

3 years

1,2

Residential accommodation

At change of
occupancy/ 1 year

5 years

1

Offices

1 year

5 years

1,2

Shops

1 year

5 years

1,2

Laboratories

1 year

5 years

1,2

 
Buildings open to the public
 

 

 

 

Cinemas

1 year

3 years

2,6,7

Church installations

1 year

5 years

2

Leisure complexes excluding
swimming pools

1 year

3 years

1,2,6

Places of public entertainment

1 year

3 years

1,2,6

Restaurants and hotels

1 year

5 years

1,2,6

Theatres

1 year

3 years

2,6,7

Public houses

1 year

5 years

1,2,6

Village halls/community centres

1 year

5 years

1,2

 
Special installations
 

 

 

 

Agricultural & horticultural
 

1 year
 

3 years
 

1,2

Caravans

1 year

3 years

 

Caravan Parks

6 months

1 year

1,2,6

Highway power supplies

as convenient

6 years

 

Marinas

4 months

1 year

1,2

Fish farms

4 months

1 year

1,2

Swimming pools

4 months

1 year

1,2,6

Emergency lighting

Daily/monthly

3 years

2,3,4

Fire alarms

Daily/weekly
/monthly

1 year

2,4,5

Laundrettes

1 year

1 year

1,2,6

Petrol filling stations

1 year

1 year

1,2,6

Construction site installations

3 months

3 months

1,2


Reference Key

1. Particular attention must be taken to comply with SI 1988 No. 1057. The electricity Supply Regulations 1988 (as amended).
2. SI 1989 No 635. The Electricity at Work Regulations 1989 (Regulation 4 & Memorandum)
3. See BS 2566: Part 1: 1998 Code of practice for emergency lighting of premises other than cinemas and certain other specified premises used for entertainment.
4. Other intervals are recommended for testing operation of batteries and generators.
5. See BS 5839: Part 1: 1988 Code of practice for system design, installation and servicing (Fire detection and alarm systems for buildings.
6. Local Authority Conditions of Licence.
7. SI 1995 No 1129 (Clause 27) The Cinematograph (safety) Regulations.
 
* Refer to sub-clause 3.5 of IEE GN 3.

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