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What is PAT Testing

PAT testing means Portable Appliance Testing. It is the examination of electrical appliances and equipment to ensure that they are safe to use. This involves a visual inspection of the equipment, cables and plugs to ensure that they are in good condition, verification of grounding continuity and testing the soundness of insulation between current carrying parts. All of this combines to make the devices used within a business safe to use.Having equipment that is regularly tested is important if companies are to successfully complete a fire risk assessment.

The Importance of PAT Testing

PAT testing of electrical appliances needs to be an important part of any health & safety policy. The Health & Safety Executive advise that all electrical appliances within all rentable residential properties and all commercial premises undertake annual PAT testing. With the influx of cheap electrical goods from foreign countries due to globalisation, most of these electrical goods have not undergone as strict a testing procedure. Therefore, the regular safety checks of these products become of paramount importance.

    Types of Test Conducted in PAT

  • Formal Visual Inspection.
  • Operation Test.
  • Earth Bond/ Continuity.
    • 200 mA
    • 10 A
    • 25 A
  • Insulation Test.
  • Alternative Leakage Test.
    • Substitute Leakage
    • Differential Leakage
    • Touch Current
  • Flash Test.
  • Portable RCD Test.
  • Microwave Radiation Leakage Test.