DIY Doctor

Main navigation

electrical outbuilding

Postby winch » Mon Feb 02, 2009 9:35 am

Hi, can anyone help me, i'm just converting my garage into a 1 bed annexe, and need to find out how i get a supply out to it from the house, do i come off the mains of my board to supply another board in the annexe, and what size cable do i use. Oh sorry i have a small kitchen in the annexe whitch has a cooker and also just power and lighting, i want to do this work myself then have a spark come in and check/test it afterwards.
Rank: Labourer
Progress to next rank:
Posts: 1
Joined: Mon Feb 02, 2009 9:20 am


Simply Build It

Postby kbrownie » Mon Feb 02, 2009 7:40 pm

A few different ways of doing this, but i'd suggest you get a sparky involved right from the start.
Cable sizes, distances, volt drop, protective devices are just a few things that need to be calculated, so if you have friendly electrician that is willing to sign your work of and inpect,test, certify and commision. I am sure he will help you with the calcs!
Rank: Project Manager
Posts: 1995
Joined: Mon Mar 05, 2007 9:36 pm

Postby sparx » Tue Feb 03, 2009 6:52 pm

clearly this is being converted without planning consent otherwise you would have been told that the electrical installation comes under 'partP' of building regs. & if you intended to try to DIY then an additional fee would be charged.
As KB says it is not permitted for an electrician to certify work he has not done himself.
As well as the points raised already, if there are any other services such as water or gas in the garage and it is separate from the house then the earthing cannot come from the house supply ie it must have its own T.T. rod and a separate consumer unit with an independent RCD in the garage.
You may find an accommodating 'competent person' registered leckie who would be prepared for you to do some of the basic work yourself, but his test sheets and council notification would have to say he had done all the work, he would be very brave so to do.
regards SPARX
Rank: Project Manager
Posts: 2166
Joined: Wed Mar 21, 2007 8:33 pm
Location: The fifth continent.

Display posts from previous
Sort by
Order by

  • DIY How to Project Guides
  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!

  • Related Topics