Re: PAT testing - Is it legally required
[Re: The Fold Studios]
#999980 - 26/07/12 04:26 PM
One thing to add (sorry if someone already has lots of replys here) is that I must say the
testers do work in many situations where a visual test alone wouldn't have found the
fault. Just in case some people might think they are a waste of time. Besides the obvious
one of the earth connection hanging on by a single strand - passing the high current
through burns it out and you get the fail - there is also the insulation test. The tester
puts a high voltage across the connections and can spot many potential problems such as a
hairline crack in the insulation of the wires, esp where they have rubbed on a chassis
screw or fitting. There might be no connection, but the high voltage arcs across revealing
the potential trouble. Of course you still have to use your eyes to find the fault, which
can take awhile!, but at least you have confidence in it once it passes.
equipment might not like the insulation test, but I think most high voltage stuff would
benefit from it. Not even sure if it's part of the PAT "test", even though the testing
equipment can do it.