Tripping ring main

Harry Bloomfield · 27 Oct 2024

ericmark said:
And any FCU has been switched off, not just fuse removed.

Assuming the fuse is in the live - then it out to be enough. From what the OP has posted, it suggests a L to E fault, enough to trip the RCD, not enough to trip the MCB.

ericmark said:
So yes question why 20 minutes before tripping, what has a 20 minutes delay?

Which was why I suggested water, or moisture - it will gradually become more conductive, as time passes..

diynot

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

Tripping ring main

Harry Bloomfield

DIYnot Local

Similar threads