Types of PAT Testers
At the basic level PAT test instruments carry out basic safety checks. Most are equipped with an earth continuity test, insulation resistance test and the ability to check the wiring of detachable mains cords. They do not however include tests which involve applying mains power to the appliance under test, for example, a protective conductor current or touch current tests. The main kind for businesses are simple PASS/FAIL testers that are easy to use, and are aimed at in-house PAT testing with minimal interpretation of results. Advanced PAT testers give much more information and testing features but are mainly aimed at trained persons qualified to City & Guilds 2377-22 or EAL.
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