Remote location Consumer unit

[NellyManjaro]

I have recently been to a property and for love nor money couldnt find the consumer unit in the 1 bed flat. I eventually found out that it is in the cellar below the shop next door.
Now my question is about the location of said unit.
I have looked into it briefly and there doesn't seem to be anything that says you have to have access to it but need adequate access at the unit for maintenance etc.
The landlord doesn't want to spend money (they never do) but I said it would be much better to have the cu accessible form inside the 1 bed flat but would mean increasing the size of the cable to 35mm (current guess without calculating) with the appropriate protective devices and running it up to the flat roughly 10m. Obviously keeping the unit where it is currently is cheaper.
Can anyone offer any advice on what they would do in this situation and maybe something in the regs to back it up?

Any help is much appreciated. Just something I've never come across before.

 

[pc1966]

Does that apply to a dwelling.

I don't know.

But presumably it applies to the shop as a place of work, and by extension to access for the isolation by those with supplies derived from it.

 

[westward10]

I don't know.

But presumably it applies to the shop as a place of work, and by extension to access for the isolation by those with supplies derived from it.

The shop yes but not the dwelling. As an aside if the shop shares the same supply as the dwelling then Part P applies to works in the shop.

 

[davesparks]

What was your reasoning for 95mm cables on a 100A fuse? I can't even think of a situation where that is necessary... might help me in the future if I come across a similar situation.

The large size was required due to being a long distance and having a load with a bit of a heavy inrush, and not being overly tolerant of a big voltage drop.

I carried out the calculations and assessed the practicalities and came to the conclusion that the best solution was 2x95mm in parallel.
The voltage drop dictated a large cable size, I think for a single cable it would have needed to be either 150 or 185, but that would have been very awkward to work with, and more expensive than the 2x95mm option.
[automerge]1596226887[/automerge]

Regardless of the Regs, common sense dictates that there should be a means of isolation in the flat at the very least. Say, if it was midnight on Saturday and the shower catches fire how are the electrics isolated? Put that question to the landlord?

You get the hell out of the building and phone the fire brigade.
If it is on fire then turning the power off is not the priority!