On 15/12/2012 15:59, Caecilius wrote:
On Sat, 15 Dec 2012 15:28:20 +0000, John Rumm
wrote:
The price of swapping the RCD will be lower than any other option...

I'll be changing the RCD anyway. As you say, it's a cheap option. I
just wanted to see what difference it had made. In the past, I've made
changes and thought the problem cured when months went by without a
trip, only for the RCD to trip six months later.

That can happen even if the RCD works perfectly... It could be for
example that it is borderline "sensitized" - i.e. the normal leakage
through it is close to tripping point. Hence it only takes an unexpected
mains transient to create a brief moment of extra imbalance that pushes
it over the edge.


--
Cheers,

John.

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