What appliances need PAT testing?
There are 2 main factors to consider to determine whether or not an electrical appliances requires a PAT test…
- The electrical ‘classification‘ of the item, and
- The ‘category‘ of the item
The class of an appliance helps to determine whether it needs testing for earth and insulation, just insulation, or simply requires a visual inspection. Some appliances, class 3 for example, don’t even need the inspection.
Electrical appliances are generally categorised into 3 classes:
- Class 1 – regarded as the most dangerous, has only basic insulation for protection and so relies on earth protection
- Class 2 – these appliances have extra, or double insulation and so doesn’t rely on earth protection, making it safer
- Class 3 – these appliances are low voltage, or battery operated, and are the safest of all electrical appliances – they rarely need a PAT test, although an inspection may be recommended for some items. If they have charging leads and adaptors – they will need testing.
Class 1 Appliances
The following appliances are usually class 1
|Photocopiers||IT power (IEC) leads|
|Washing machines||Extension cables|
|Fridge Freezers||Electric heaters|
Class 2 Appliances
Class 2 Appliances include
|Desktop printers||Food mixers|
|Desk lamps||Hair driers|
|CD players||Hair straighteners|
|DVD players||Vacuum cleaners|
Class 3 Appliances
Examples of class 3 appliances:
|Laptops||Low voltage IT units|
|Mobile phone chargers||AC Adaptor plugs|