Portable Appliance Testing (PAT Testing)


Definition - What does Portable Appliance Testing (PAT Testing) mean?

Portable appliance testing (PAT) is defined as the examination of electrical equipment to determine whether it is safe for use. Many electrical safety issues can be seen with visual examination of a piece of equipment, but diagnostic testing of the item's functional capacity to determine whether it is performing optimally is important to ensure its safe use. Testing to ensure it is working in harmony with the Electricity at Work Regulations is also important.

Safeopedia explains Portable Appliance Testing (PAT Testing)

The American Society for Testing and Materials (ASTM) hase provided a series of testing procedures tailored for different kinds of appliances. In addition, there are different classes for different kinds of equipment that have basic insulation and a protective earth or double insulation. The tests include visual inspection, earth continuity tests, insulation resistance tests, leakage tests and other tests on leads and RCDs.

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