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Got a consumer unit which needs sticking on a sub main and moving due to current location meaning all the cables will need to go in the cavity and also it’s not most practical place presently.

Moving it inside but can’t decide on best place for it, either just inside by street door in a hallway, or inside the airing cupboard... it’s a bungalow.

Looking for views and opinions.

Thanks
 
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Spoon

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Mentor
Arms
Esteemed
Welcome to the forum mate.
Is this an additional CU to the main one or are you intending to move the main CU?
If putting all the cables in the wall cavity how do you intend to stop water transferring from the outside wall to the inside wall and also protect the cables? What about wall insulation?
Are you an electrician?
 

kris jones

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Mentor
Got a consumer unit which needs sticking on a sub main and moving due to current location meaning all the cables will need to go in the cavity and also it’s not most practical place presently.

Moving it inside but can’t decide on best place for it, either just inside by street door in a hallway, or inside the airing cupboard... it’s a bungalow.

Looking for views and opinions.

Thanks
Not a huge amount of information there mate but can you place it somewhere where you dont have to extend cables? Less crimping the better:handok:
 

DPG

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Arms
Esteemed
Advent Win
Cables in cavities - not something I like. Breaching the cavity as Spoon says, and also causing possible issues if someone ever drills for an outside socket and doesn't realise they are there.
 

Midwest

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Arms
Esteemed
Somewhere easily accessible, not in a small cupboard. The CU should be easily accessible by the home owner, and for electricians for future works.
 
Putting cables inside a cavity is asking for trouble my pedigree chum. I have seen damp on inner walls where this has been done. Get chasing.
 
Pretty much every council house I have ever worked on has its cables originally pulled via the cavity
[/I remember my father complaining to the local council about damp in our living room. It was those sockets all along....
Pretty much every council house I have ever worked on has its cables originally pulled via the cavity
My father was always complaining to the council about damp in our living room. It was the sockets all along.
 
  • Thread Starter Thread Starter
  • #9
In response to am I an electrician, could I kindly ask I don’t get flack please.

But I will be honest and say no I’m not, HOWEVER, I am doing this supervised by a registered and qualified electrician who will be testing it and signing it off, and as such he will be specifying the cable thickness and route of it and I will before the end of the year be studying an electrical course so I can get qualified.

Thank you for the responses.

I will try to be clearer,

It’s a bungalow, it has no consumer unit, supply cable and meter is in a garage which is attached to the side of the bungalow.

All it has is a very old MEM switch fuse unit which covers entire house, no individually fused circuits.

Other side of the wall is a bedroom, so can’t drill through into the house and run cables up inside wall and presently the cables from the switch fuse unit run inside the cavity into the loft.

Due to this issue of cables in cavity, and no consumer unit, and also... practicality of it being in garage if it trips in middle of night and person who will be living there needing a walking stick to assist them with walking, I feel the best solution is to move the consumer unit inside the house, and install it on a fused SWA sub main to get around the DNO meter tail restriction.

I will speak to the electrician in regards to the design of that submain, whether he’s happy for that single cable to go through cavity into loft or if he wants it taken to exterior of garage and into loft via soffits which would eliminate cable in cavity... this would probably be my preference but will see what he says. It has loose fill cavity insulation, the fluffy stuff they blow into the cavity.

As the location is already near to the soffits, cable may only be about 18” inside cavity. As outside wall is adjoining garage and top part shielded by soffits it shouldn’t get much dampness.

Then once in the house it’s a question of best location for it, I did ask the electrician but ultimately it comes down to me where it’s located as long as it meets regs so he didn’t have much advice on best location in terms of practicality so thought I would ask on here as it’s a wider audience.

Not too worried about crimping of cables as property is being rewired, I’m going to chase out all the boxes and walls, I also want to use galvanised conduit up the walls rather than capping for better protection and cable replaceability in future so will he installing that, then he’s going to come down and inspect it all, and then discuss the cabling with me... and once he’s done that I will install the cabling... and he will come back, connect everything up, test and sign it off.

So just a matter of if airing cupboard is suitable due to space restrictions when you have tank etc in there or best just inside the house by front door.

There is a small alcove

8A1591C1-0219-4382-968B-95FC21D34F57.jpeg

Entrance at the bottom, airing cupboard at the top.


Thanks again for the replies so far, appreciated.
 

Spoon

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Mentor
Arms
Esteemed
I am doing this supervised by a registered and qualified electrician who will be testing it and signing it off, and as such he will be specifying the cable thickness and route of it
So its the main CU.
As your electrician is putting his/her name to this then it will be down to him/her to design this. You can suggest where you want the main CU going and they can then design accordingly.
 

DPG

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Arms
Esteemed
Advent Win
Ah, your OP made it sound like you were moving an existing consumer unit.
 
  • Thread Starter Thread Starter
  • #12
So its the main CU.
As your electrician is putting his/her name to this then it will be down to him/her to design this. You can suggest where you want the main CU going and they can then design accordingly.
Yep, it’s the suggestions on where I want the consumer unit to go is what’s im asking.

Asking where other people feel is best based on experience from going out to properties and installing.
 

Paignton pete

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Arms
Esteemed
Your electrician has given good information. And the solution you’ve put together seems ok especially if the sparky likes it.

Can I just check are you sure the whole installation is on one circuit?
Lighting and sockets, maybe cooker and shower and heating all on the same size fuse.
 

Paignton pete

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Arms
Esteemed
Yep, it’s the suggestions on where I want the consumer unit to go is what’s im asking.

Asking where other people feel is best based on experience from going out to properties and installing.
It’s more a case of where you don’t not want it.

Not in the bathroom obviously.

Anywhere that is accessible for the user.

Id personally have it sitting on a wall in the hallway rather than in an airing cupboard or under stairs as you know the residents will fill cupboard with possessions rendering it inaccessible.

( I know it’s a bungalow so no stairs, just giving example)
 

Midwest

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Arms
Esteemed
Sounds like your property might benefit from a rewire or partial rewire. If your relocating your CU position, rather than jointing or crimping cables that will be too short, you could reposition the final circuit feeds.

If your intention is to carry out the installation, with design, inspection & testing by a third party, then there is a specific process for this. It can only be carried out by a registered third party certifier. Is your electrician registered as such? I day say a lot of people don't follow this process, but it might prove problematic, if/when you sell the property.
 
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