The Memorandum of Guidance on the Electricity at Work Regulations suggests that 'regular inspection of equipment is an essential part of any preventative maintenance program', however as a guideline:-
| Type of Appliance | Class I Appliances | Class II Appliances | |
|---|---|---|---|
| Stationary Equipment | 3-48 months | 3-48 months | |
| IT Equipment | 12-48 months | 12-48 months | |
| Moveable Equipment | 12-24 months | 12-24 months | |
| Portable Equipment | 6-24 months | 6-24 months | |
| Hand-held Equipment | 6-12 months | 6-48 months |
