In article ,
tony sayer writes:
In article , Andrew Gabriel
scribeth thus
In article ,
"Sky" writes:
Hi all,

I've just had an office PAT tested and to my surprise a number of newish (ie
bout within the last 12-24 months) TFT monitors have 'failed'. The guy doing
the testing has sort of shrugged his shoulders wehen I asked him exactly
what this meant, and has recommended that I change the power leads - which
seems daft as the power leads have been seperately checked and PASSED!

Any idea what I should do? Should I replace the units and if so, what is
likely to be the problem with them?

What was the reason for the failure?
Do the monitors have external PSU's, or does the mains lead
plug into them directly?

I do wonder if the guy had the faintest idea what he was doing,
if he just shrugged his shoulders when asked for details. A lot
of PAT testers (most in fact) haven't got a clue. In future, I
would suggest you ask to see the tester's C&G 2377/2 certificate
before engaging them.

I suspect this might be Capactive leakage coupling from the L and/or N
conductors to the Earth line thats if they are kettle lead connected
types!...

It may be that he's done an insulation test on the monitors
without checking if they conform to BS EN 60950, and has destroyed
them in the process. He might even have flash tested them.
In either case, he should be paying for replacements.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]