Any electricians in the house?

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7 Oct 2003
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I am buying a new house and assumed the garage had power and light. But it has neither.

Any idea what the cost would be it install power and light?
 
Because you'll be running externally you will need to connect the house to the garage using either SWA (Steel wire armoured cable) or MICC (Mineral-insulated copper-clad cable).
Due to the more time consuming process of terminating these cables that in itself will push up the price slightly!
Also unless you plan on running lots of high current machines/devices in there I wouldn't bother with a ring final and instead install a 16A radial for the sockets.
 
I'm not an electrician, so I'm likely wrong, but instead of ripping up the tarmac can't the connection be done overhead?

Previous rental had the power it's it's external garage done that way. Then again the person who previously owned it was clearly a bit mad and we found a ton of his diy "improvements".
 
I'm not an electrician, so I'm likely wrong, but instead of ripping up the tarmac can't the connection be done overhead?

Previous rental had the power it's it's external garage done that way. Then again the person who previously owned it was clearly a bit mad and we found a ton of his diy "improvements".

Indeed it can however you really should still use a cable that has extra mechanical protection such as SWA or MICC. Simply running a bit of flex or 2core+cpc is at the very least unprofessional and possibly against building regs (can't remember for sure as it was a good few years back now when I did the course).
Personally I'd just chase a small but deep channel out of the tarmac and lay some SWA or MICC, then re-tarmac it. (You can get little tarmac kits from b&q)
 
You don't need to ust SWA or MICC. If its going over head normal t&e will be fine. The t&e will be cable tied to a steel catenary wire. The only thing you could say is UV protection thats all. If that is all you are worried about put it in some copex.

Even if you run it underground you still don't need swa or the like as long as it's mechanically protected.
 
You don't need to ust SWA or MICC. If its going over head normal t&e will be fine. The t&e will be cable tied to a steel catenary wire. The only thing you could say is UV protection thats all. If that is all you are worried about put it in some copex.

Even if you run it underground you still don't need swa or the like as long as it's mechanically protected.

Yeah go with this, i have catenary wires to a couple of my outbuildings. Easy access to the feed too should you need to add to it or replace it.

Any work done by yourself will need checking for part p

No it doesn't, where do people get the idea that work on your own home needs to be checked? This will not need buildings regs.
 
Sorry Jez Part P will apply to his installation. There are two ways to comply with part P of the building regulations. One is to get a competent person who is registered with the relevant body. Second is to carry out the works yourself and submit notice to your local building authority.

Running twin and earth over a catenary wire doesn’t comply with BS7671.Twin and earth is not suitable for use in direct sunlight as it's not UV stabilized. SWA is a much better choice and make sure the catenary wire is earthed up.


Part P facts:
http://electrical.theiet.org/building-regulations/part-p/faqs.cfm
 
Sorry Jez Part P will apply to his installation. There are two ways to comply with part P of the building regulations. One is to get a competent person who is registered with the relevant body. Second is to carry out the works yourself and submit notice to your local building authority.

Running twin and earth over a catenary wire doesn’t comply with BS7671.Twin and earth is not suitable for use in direct sunlight as it's not UV stabilized. SWA is a much better choice and make sure the catenary wire is earthed up.


Part P facts:
http://electrical.theiet.org/building-regulations/part-p/faqs.cfm

This matters if you are carrying out the installation for somebody else. This is happening on HIS house. No-one is going to check it, ever, or care. It simply doesn't matter, it is so minor.

Just what do you think will happen?
 
Whilst I agree it’s unlikely anyone will check it I was highlighting the fact that Part P does apply. As for if anything will happen, that all depends on how competent person carrying out the DIY is and do they have access to suitable test instruments to ensure the installation is safe.
 
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