Why do you say PAT testing and not PA Testing?
Portable Appliance Testing is abbreviated to 'PAT.' The phrase 'PAT Testing' is in fact a tautology in the same way that some people say 'LCD Display'. However, the phrase is commonly used in the industry even though most people realise it is incorrect. Some people insist on calling the process PA Testing which causes confusion. The correct term for the whole process is actually 'In-service Inspection & Testing of Electrical Equipment'.
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