Earth loop testing

xerxes · 13 Jan 2006

My Robin loop tester (an older model) trips RCDs when testing. Opinion seems divided on whether bridging the RCD to get a reading is acceptable practice. What does anyone think?

What's the best way to bridge? A patch lead across the incoming/outgoing terminals, or is another approach better?

I can't afford a non-tripping tester.

securespark · 13 Jan 2006

So how on earth (excuse the cheap pun) do you test these RCD's?

You really should have an RCD soft test function.

andy · 13 Jan 2006

my tester trips RCDs aswell. just link out the RCD, or if its an RCBO, move the live out to a non-RCD MCB

Adam_151 · 13 Jan 2006

calculate it from Ze + (R1+R2) ?

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Earth loop testing

xerxes

securespark

andy

Adam_151

DIYnot Local

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