Flood damage

Mike2007 · 14 Mar 2010

I had a plumbing related upstairs flood and the electrics got water into them, thus making RCD trip right out on every circuit.
I installed a new RCD to be on the safe side(drying out building), but still have two circuits that trip it when switched on.
These two circuits make a "crackle" in the CU when tried and trip main (only) RCD at same time.
Any advice?

Spark123 · 14 Mar 2010

Probably still got water in the circuit somewhere - you ideally need an electrician with a Megger (Insulation Resistance) tester to check the circuits.

ericmark · 14 Mar 2010

Many years ago when working away my daughter over filled the bath. Weeks later on my return I found water inside the light bulb causing RCD to trip.
Anything warm when hit by cold water will suck water in as air contracts and even months latter may still contain water.
As already said it needs an insulation tester to check items and there is no real short cut

ColJack · 15 Mar 2010

sorry but that's just not possible..
the light bulb is a glass envelope which is air tight.. no possible way that something that is air tight will suck in a liquid..
besides that, the water vapour would cause the fillament to burn out immediately..

RF Lighting · 15 Mar 2010

At the last firm I worked at, we had a clear BC GLS lamp half full of water on show in our office.

It was removed by one of the firms electricians and was still working when it was removed.

I would not have beleived it if I hadn't seen it for my self.

Johnmelad502 · 15 Mar 2010

Not just water that can get into a light bulb.

Sorry, could not resist.

Click-Sure · 15 Mar 2010

Water can sit in the bases of CFL's, and inside the outer glass envelope that the older ones used to have.

RF Lighting · 15 Mar 2010

The one I saw in our office was very similar to the pic above (minus the fish etc of course)

I'll ask one of the lads who still work there to take me a couple of photos of it.

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Flood damage

Johnmelad502

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