Pat Testing - Portable Appliance Testing

Many companies are still unaware of their duties to inspect, test and have the results recorded for their portable appliances on site. A portable appliance is anything with a plug attached to it, these can be low risk environments e.g. offices; medium risks e.g. shops and workshops; high risks e.g. building sites with 110v appliances and industrial kitchens.

The regularity of testing is determined by the type of appliance and environment it is in. We find incorrectly rated fuses, which we change FREE of charge, poorly wired plugs with breakdown of the insulation and all on our visual inspection prior to testing the appliance.

Many insurance companies now require proof of PAT testing before insurance is agreed.

Remember to get your company covered with Proactive Appliance Testing Ltd and be safe and tested.

Method Statement

Client Liaison

The Proactive Appliance Test engineer shall make himself known to the person responsible for Health and Safety on the premises. The engineer will liaise with this person or another nominated person on site with all matters of testing with regard to the schedule of testing on the premises; times appropriate for shutdown of equipment etc, and advise this person of any appliances that fail.

Guidelines for Testing

Testing will be carried out under the IEE’s Code of Practice for Inspection and Testing. This testing includes all electrical equipment of the following types (as detailed in the IEE Code of Practice) portable appliances, moveable or transportable equipment/appliances, hand-held appliances, IT equipment, stationary equipment/appliances, fixed appliances, extension leads.

Inspection: (Visual)

1. The flex will be inspected for any damage ensuring it is free from cuts, fraying or stress.
2. The plug top will be opened to ensure that the flexible cable is secure in its anchorage and is correctly wired, that the fuse is of the correct rating for the appliance and is free from any sign of overheating and is in physically good condition.
3. The appliance will be inspected to ensure that it is in good working order, including ensuring that it switches off properly, and the casing/cabinet has no damage that could result in access to exposed live parts.


1. Polarity Test carried out on extension leads and supply leads
2. Earth continuity Tests carried out on Class I appliances only, Class II have no earth
3. Insulation Resistance Test
4. Operational Test
5. Earth Leakage Test if Operational Test carried out
6. Tests on Computer equipment are “soft tests” of 100ma on earth continuity. No operational tests are carried out on computer CPU’s. PC’s are switched back on after testing


1. A label will be attached to each appliance which passes testing with the Appliance ID, date of test and retest date and initialled
2. Appliances which fail testing will be labelled “DO NOT USE Failed Safety Test”

Appliance Register, Pass Certificate and Display Certificates will be sent after completion of testing and within 3 days of receipt of payment of invoice.

• Appliance Register, A complete register of all equipment tested with their location at the time of testing and unique number corresponding to the attached label.
• Pass Certificate, to be held in the companies files for Health and Safety Regulations
• Display Certificate, A Certificate for display in reception, staff room or notice board