Testing / Inspection / Certification

Recommended Initial Frequencies of Inspection of Electrical Installations
Type of installation Routine check Max necessary period between inspections
General Installations
Domestic N/A Change of occupancy / 10 years
Commercial 1 year Change of occupancy / 5 years
Industrial 1 year 3 years
Offices 1 year 5 years
Shops 1 year 5 years
Residential accommodation At change of occupancy / 1 year 5 years
Public Buildings
Cinemas 1 year 3 years
Restaurants / Hotels 1 year 5 years
Theatres 1 year 3 years
Public Houses 1 year 5 years
Community Centres 1 year 5 years
Special Installations
Agricultural / Horticultural 1 year 3 years
Caravan Sites 6 months 1 year
Caravans 1 year 3 years
Swimming Pools 4 months 1 year
Emergency Lighting Dailey/monthly 3 years
Fire Alarms Dailey/weekly/monthly 1 years
Petrol Stations 1 year 1 years