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Yeah. Cheers RF thanks for your help with this. Smart Arse. :wink:

Rectified this problem today. The return phase of the ring was terminated in a 16a MCB which was supposed to be for the combi boiler circuit and the combi boiler phase was terminated in the 32a MCB protecting the ring.

Rang my supplier today (British Gas) and they said they will fit an iso but they want £40.

See what you are saying JohnD, will ring lecky supplier and see what they say.

Picked up tester today, i went for the Megger 1552. Had a little dabble tonight and i'm convinced i've made the right choice. Done a sequence of tests at home today and very happy with the ease of functionality.

Just confused as to why other people in my area have had an iso fitted by DNO, but when i ring them they say i have to go to electricity supllier and not the DNO.

^^^ Good idea and very easy to do.

I contacted DNO today (Scottish Power), they refused to fit an isolator and told me i had to go to my electricity supplier. :?

Thanks for your thoughts, i'll take all on board. :wink:

only by milliseconds i might add :wink:

Approximatley a fiver. Too slow :oops:

Nice one. :D

I believe the 1651 doesn't have the Auto RCD Test. I havn't made up my mind which one to get yet. I've sampled both of them but not enough to help me make a decision. I think it'll be by the toss of a coin. :)

I've had some quotes for Fluke and Megger MFTs. I'm looking at either the Fluke 1652 or the Megger 1552. I'm geting quoted £549 + VAT for the Fluke and £495 + VAT for the Megger. However, they are also on ebay (as new and calibrated) for quite a lot less. My question is - would you trust...

I'm just glad i've spotted it. At least it can be rectified. My poor Nan is petrified.

Thanks for the replies, i'll have a look.

It's my Nans house and I know for sure that apart from a chairlift and shower being installed there have been no other alterations, especially to the ring circuits. Both the chairlift and shower are on there own circuits. I'm just wondering - is it possbile that the 32a mcb should be...

I was spuring off a downstairs socket outlet to supply an outdoor socket outlet. I didn't want to isolate the whole house so i decided to remove the mcb that was protecting that circuit, 32a. Once i removed the mcb I tested the outlet and i was still getting 230v. I thought i'd removed the...

Why would a socket outlet be connected to 2 different circuits? I came across this today and can only assume that 2 circuits are interconnected. Any ideas?

JohnD, it's a TN-S system. By the way there is no main equipotential bonding in the house. It's a job i plan to do very soon. The guy who lived here previously is the owner of a very big building contracting company. You would think that he would have his house in tip top shape.