But very expensive.
cant afford one of them at the mo so was hoping theres a way with the tools i have.
is there a way of measuring the earth leakage of an appliance (computer, monitor etc) without a pat tester or earth leakage clamp meter . ie with a multi meter, megger 1552 or clamp on amp meter.cheers wayne
ROTFWL
How about: ramp test RCD without item plugged in (I'm assuming 1552 has ramp test function), plug item in, repeat ramp test. Difference between tests is item leakage?is there a way of measuring the earth leakage of an appliance (computer, monitor etc) without a pat tester or earth leakage clamp meter . ie with a multi meter, megger 1552 or clamp on amp meter.cheers wayne
see Special locations reply (post 19) in this thread. same thing, just slightly different setupis there a way of measuring the earth leakage of an appliance (computer, monitor etc) without a pat tester or earth leakage clamp meter . ie with a multi meter, megger 1552 or clamp on amp meter.cheers wayne
is that right? ill try thatHow about: ramp test RCD without item plugged in (I'm assuming 1552 has ramp test function), plug item in, repeat ramp test. Difference between tests is item leakage?
that may not be accurate enough. even without changing the load, the reading is unlikely to be the same every time you testis that right? ill try that
Quite right if it's 30 appliances leaking 1mA each it won't be accurate enough, but if it's 3 appliances leaking 10mA each, you'll find them!that may not be accurate enough. even without changing the load, the reading is unlikely to be the same every time you test
Just done exactly this myself. RCD kept tripping at complete random. No faults found on circuits on either side of board. Used mA meter to find installation (with appliances plugged in and on) had a total leakage of 5.5mA to earth - not enough to trouble a (healthy) 30mA RCD, so came to conclusion RCD is at fault. Just waiting for new RCD now.Hi there,If you don't want to use a clamp meter, then the only other way is a milliAmp meter in series with the earth (you could use a multimeter for this - assuming it has a mA range).
O.
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