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