----- Original Message -----
From: "Tony Duell" <ard_at_p850ug1.demon.co.uk>
To: <classiccmp_at_classiccmp.org>
Sent: Thursday, January 24, 2002 04:20 PM
Subject: Re: Kinda OT but that what's true HW hacker do in a pinch.
> > > Second-hand meggers are not hard to find in the UK, and are not that
> > > expensive (I paid \pounds 25.00 for an insulation tester, not Megger
> > > brand, but well built, and with selectable test voltages, etc).
> >
> > What would you suggest I look for in a tester? I've been thinking about
>
> Well, you want a true meter (actually measures and displays the
> resistance) rather than a 'go/no go' tester that just says if something
> is safe to use or not.
>
> THe most important thing is probably the test voltage. You want to do the
> tests at at least tiwce the normal working voltage of the unit (so at
> least 500V in the UK). The better testers have the following :
>
> Selectable test voltages (often 100V, 250V, 500V, 1000V). Very useful.
>
One thing to watch out for is the insulation class you are testing....
Running a 1000v test on insulation rated for 600v isn't the best thing in
the world for it.
Bob
Received on Thu Jan 24 2002 - 19:23:25 GMT