- Joined
- 11 Jan 2004
- Messages
- 43,851
- Reaction score
- 2,867
- Country
Sure it's TN-C-S?
They do, indeed. However, the OP seems very clear in saying that the TT rod was installed, by an electrician, a couple of months ago, without any trips occurring, and it's only since the meter/cutout move/changes (and possible change to TN) that the trips started occurring. I took this to indicate that there was almost certainly a 'functional earth rod' in place during that period when no trips were occurring - although I may, of course, be wrong!JohnW2's calculations of course assume that the previous TT system actually had a functional earth rod.
It does look that that. However, the G/Y from the cutout must go somewhere. Indeed, if it isn't being used as the earth, then it probably qualifies as an extraneous-c-p and ought to be bonded! [That would actually create a rather odd situation, since that 'bonding' would effectively mean that it was being used as the installation's earth!]The earth conductor that follows the tails does not look like it connects to the cut-out. The earth conductor we can see connected to it disappears.
Possibly true, but I've quite often heard of people being 'offered' PME when such work has been done. It certainly happened to most people in my village when the supply was PMEd and (for most of the village, not me)the supply was moved from overhead to underground.If it was TT before, unless PME was requested, it is highly likely the DNO reinstated what was there before.
I suppose he may well not have known. The work to cutout/meter was apparently done as a result of DNO changing from overhead to underground supply, not work requested by the OP, so it could be that, at the time, neither OP nor electrician knew that the work was going to happen.After all, why would the spark bother with a rod if there was going to be a PME upgrade?
You don't need to do that.Will start with others as use up freezer contents, then go for that last.
As Eric suggested early on, one way of dealing with 'difficult' things like the freezer would be to use a long extension lead to power it from one of the circuits (maybe an upstairs sockets circuit) which is protected by the other RCD. If the freezer is the culprit (at least, the lone culprit), then that ought to result in the other RCD tripping, in due course.I am starting the process of elimination...problem is things like freezer, as the tripping seems to only happen once a day/ every other day! Will start with others as use up freezer contents, then go for that last.
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