Loft Conversion - Consumer Unit
Ask questions and find answers to many subjects relating to electrics and electrical work

3 posts   •   Page 1 of 1
rustynail
Labourer
Labourer
Posts: 2
Joined: Sat May 26, 2007 11:34 am

Loft Conversion - Consumer Unit

by rustynail » Sat May 26, 2007 11:48 am

I have just purchsed a newish house with space for an loft conversion. In the original build the main consumer unit has a 40 amp MCB marked sockets. A single line out to the loft is in place (but not connected!) and the cable is capable of carrying at least 40A.

I reckon that the builder planned to install a secondary consumer unit in the loft and run a ring main and lighting circuit out of this unit with the loft from protected by the 40A MCB on the main unit. Is the acceptable under building regs?

sparx
Project Manager
Project Manager
Posts: 2166
Joined: Wed Mar 21, 2007 8:33 pm
Location: The fifth continent.

by sparx » Sat May 26, 2007 9:05 pm

Hi, seems perfectly ok to me, you could buy a so called 'garage unit' which comes complete with RCD main sw. plus 1X6A & 1X16A for socket radial, you could change 16A for 20A and wire radial in 2.5mm2, no limit to number of outlets if loft less than 50 m2, then again if you need more power fit 32A for ring or 4.0mm2 radial which will cover up to 75m2,
regards SPARX
N.B. as new circuits means part p rules apply see forum 'projects'

rustynail
Labourer
Labourer
Posts: 2
Joined: Sat May 26, 2007 11:34 am

by rustynail » Sun May 27, 2007 10:38 pm

Thanks for advice - much appreciated - since I won't have to open the wall to do a new cable run - it is new work but at least now I know what to ask for!

3 posts   •   Page 1 of 1
It is currently Thu Dec 12, 2024 5:37 pm