Fuse Upgrade: how to upgrade the tails from the meter.

When I did my CU change, I fitted an isolator, and got EDF to do a disconnect (for the old CU) and reconnect (to the isolator). IIRC I provided some tails already attached to the isolator, and they did the rest.

I didn't ask the ins and outs of who was supposed to do what - I did the bits attached to my side, and didn't touch any seals. The guy who turned up did the rest.

The electrician cuts the seals, removes the fuse, replaces the tails, replaces the fuse and goes home after training customer to say "I was like that last time they read the meter"

I don't think they are too much bothered if they turn up and find the seals broken. They'll just seal them before they go. There certainly won't be an inquest. Adam might know differently.

That's what happened here, except I was the 'electrician'. That was when I put the isolator in too.

I cut the seal, pulled the fuse, added my own isolator, with 25mm^2 tails on my side of it ... no meter reader said anything for many years, eventually when meter was replaced the chap upgraded the tails on their side of the isolator, uprated the fuse, and sealed the fuse (as well as the input side of my isolator) not a word was said.

FTAOD I'd happily do that (since the problem with the jammed fuse was sorted some years back) but it's the tails between the meter and the isolator which you left that I need to replace.

Think they'd only be interested if you had abnormally low leccy bills. ;-)

The isolator and tails from it to meter are yours if I remember who is respnsible for what corectly.

Incomer, cut out to it's output termianls and MET - DNO. Meter and tails from the cut out - Your supplier. Downstream of meter output terminals - You.

As the only way to safely work on your meter to isolator tails is to cut the seals on the meter and fuse and pull the fuse. They really can't argue, though I supposed you ought to tell the DNO and Supplier that you have had work done, Or look on eBay for the seal wire and lead crimps...

Or just ask me if I have any:-)

Mine has yellow plastic ties rather than lead crimps - is this an alternative?

Why not. They are only there to see if the cover or fuse has been removed.