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Discuss New Build. Consumer Unit 7 mtrs from Supply Box Installation Advice Required in the UK Electrical Forum area at ElectriciansForums.net

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Hi all
I am retired but needed a project so self building our new bungalow on an existing plot with power.
I have Part P but limited experience on a totally new supply installation.

The main supply and meters will be into my new white box on outside wall at 100amp and this has been agreed with Western Power.

My consumer unit is approx 7 mtr away in a cupboard within the new build.

The property design has a concrete block & beam floor which once laid is not accessible so I need to ensure I install any channel or duct prior to thread cable through later in build.


Earth will be a new spike and I will install this near the box to take a 16mm earth cable into the build.

I'll need an 80amp fuse within supply box for my feed.

I need to install a duct or conduit under the floor to thread supply cable.

1/ Should this be plastic or metal?

2/ Should I use SWA or just shielded cable within the duct or conduit?

3/ What size cable for 100/80 amp supply is recommended?



Regards
 
My thoughts exactly. Why does it matter where the CU is if there is a switch fuse unit installed next to the meter. Are you sure they were only saying this because you didn't have a switch fuse unit installed. I don't understand as there main fuse and the meter tails are protected by the switch fuse. Its no different to running a sub main. What about on big projects where you have the meter and CT chamber installed remote to the Main Switch Panel.

On the contrary. The CU tails were neatly terminated into a switched fuse in the meter cupboard. Adjacent to the DNO head, meter and on show for anyone to see and find.
 
With my recent meter move (SEPD) they were fine with a switch fuse and but were insistent it could not go on the dno board. Had the meter box been standard size the sw/f would have had to have been indoors adjacent. So similar to what Murdoch had.
 

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