Electrical - CU meter tail size for new isolator fitting

No you will not get 2 tails in one isolator terminal so you will need a Henley block.

Yes, 25mm is the correct size. And you'll need a 16mm 'earth' conductor to match.

The isolator won't take more than one tail, so you'll definitely need a Henley block.

(did my own isolator years ago)

Thx. I was told Eon would do it for free. In the event, they use another company - who charge £80 (inc vat :-) ) for fitting the isolator.

You could DIY it for less.

On a related point, where could I get a half convincing seal for the Board's fuse if I pull it to replace the CU, and/or fit an isolator?

I know some DIYers wouldn't worry about re-sealing it.

Mine has "MA" embossed on it.

Not only didn't I bother replacing mine (nothing was mentioned afterwards, it was only replaced at next meter change) but I think providing a hooky seal is worse than simply removing the old one ...

You need not bother. No one will notice or give a toss about a cut seal.

If it was the large round style I'd be more concerned that some one might notice but not that lead ferrule sort.

In message , ARW writes

I'd pulled our main fuse a few years ago.

Recently, UK Power Networks replaced our electricity supply cable (they are gradually undergrounding the supplies on our street).

The chap didn't bat an eye lid at the missing seal, just put on a new one when he repalced the fuse.