Moving the CU

[Octopus]

but its not a cu change, it is relocating the same cu. Unless i read the post wrong which isnt unknown.
So how many when they extend a ringfinal issue an EIC? not me.

So if its the same cu just relocated (no change in ocpd's or rcd's) & the circuits require extending why would you complete an EIC?

If it means that you have to extend ALL of the cables the very least you shouid do (IMHO) are R1 + R2, IR and Zs on all affected circuits.

If there's 8 circuits you'll need to do 8 x MWC or 1 x EIC - EIC for me.

 

[MDJ]

Certainely a difficult subject for us all to agree on, but removing all circuits, tails and earth wires, plus extending them all and confirming continuity and live tests is quite a complex job really, imagine the trouble if something happened after leaving site, and the problems via insurance matters, a Completion Certificate would be my choice as I mentioned yesterday and to issue these would mean a full set of test results to all affected ciruits which in this case would be all of them, peace of mind and a proper Job done, which bob from the pub local wouldn't do, the householder would be assured a professional spark turned up, imagine handing over a dozen monor work circuits trying to explain doing this job otherwise, or no certification at all lol.

 

[AndyL]

This is not minor works so MWC cannot be used, it specifically says on the guidance note that comes with MWC not to be used for replacement CU. I know OP says he is using original CU but i don't think this makes a difference

 

[SPARTYKUS]

I would say the devil is in the detail on this one.

As mentioned prior, it does depend IF the cables, and which cables, need extending.

I would fully expect ALL cables to need extending moving any CU that distance but maybe one would get away with the tails if its miving closer to cut out, and so on, the same may apply to some/all circuits, they may be plastered in/clipped to the wall in a cellar or a 100 other possible scenarios.


Tricky.

 

[sparky-s-w]

if your extending cables....just do the tests just to be on the safe side. if you dont need to extend cables, then it aint the end of the world if you dont test, but why not test & add the extra hour or so, on to the bill

 

[shazbutz]

I'd test and issue an EIC. I completed a CU replacement, no cable extensions required just a simple upgrade from 3061 to 17th Edition in the same location. On testing got awful Zs results and a Ze way over the max for TN-S. The DNO had to attend and repair their incomer.
You never know what you can find and CYA (cover your @rse) is always to be considered!