Nightmare plugs found in student accomodation

All of these plugs have been found in various student accomodation where PAT testing has been carried out. This highlights the importance of a good formal visual inspection which includes looking inside a plug.

Do you think they used a pair of scissors to strip the insulation on this one?

5 faults that a PAT tester will NOT find

Some users of PAT testers assume that ALL faults on an appliance can be found by plugging it into a PAT tester and carrying out the tests. This assumption can lead to a lot of faults with appliances NOT being found. Below are some of the common faults that can be missed.

Why does the Insulation Resistance test PASS with nothing plugged into the PAT tester?

This is a question we often get asked during the PAT testing courses. On any PAT tester, just press the Class II button. The tester will carry out the Insulation Resistance test and display a PASS - even with nothing plugged into the tester.

Why does this happen? Is the tester faulty? The answer is NO.