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Domestic Installer - a scheme that covers general electrical installation work in UK domestic properties only

Sergio Fernandez

Domestic Installer - a scheme that covers general electrical installation work in UK domestic properties only.  But what if the dwelling has 3 phase due to size of house or for Solar PV or EV (Electric Vehicle or HP (Heat Pump)?


Eg 

Single phase safe isolation 3 point test at 230v AC nominal

3 phase 10 point test but at some point phase 1 to phase two at potentially 400v AC


As always please be polite and respectful in this purely academic debate.





Come on everybody let’s help inspire the future

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  • For myself should not be an issue if three phase or single phase. Reason being the person carrying out the work must be "Competent" for the work to be undertaken.

    Reality is should one expect that the "Electrician" and I use that word loosly since it has no legal protected status be a lesser "Competent" person than somebody carrying out a small retail/commercial installation?

    We all know the race to the bottom, and hey ho its only a house, so crack on, get it wired what can go wrong!

    Cheers GTB.

  • in reply to GTB
    GTB said:
    crack on, get it wired what can go wrong!

    Phase rotation? I think that is the only extra test.

    The practical scenario in my C&G exams was a flat fed from a 3-phase intake in the basement, so we had to demonstrate our capability for initial and periodic inspections. It was not a problem.

    All that said, I would not advise a domestic installer to start installing 3-phase without some training on the basis that if something does go wrong, it is more difficult to avoid blame.

  • in reply to Chris Pearson

    Chris, totally understand where you are coming from, so question is did the domestic installer have no understanding, exeprience and knowledge of three phase? Simply because he is Domestic installer. Or did that domestic installer via their NVQ formal training etc at one point in early career fully understand about three phase and yes do the check on phase rotation and has simply "Forgotten" about it all, hence needing a little reminder via CPD.

    Or are we saying that those persons carrying out domestic work are not cpable of doing anything else.

    Cheers GTB 

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  • in reply to Chris Pearson

    Chris, totally understand where you are coming from, so question is did the domestic installer have no understanding, exeprience and knowledge of three phase? Simply because he is Domestic installer. Or did that domestic installer via their NVQ formal training etc at one point in early career fully understand about three phase and yes do the check on phase rotation and has simply "Forgotten" about it all, hence needing a little reminder via CPD.

    Or are we saying that those persons carrying out domestic work are not cpable of doing anything else.

    Cheers GTB 

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  • in reply to GTB
    GTB said:
    Chris, totally understand where you are coming from

    I was really making the point that with the exception of phase rotation, all the other procedures are the same. There are, as Sergio said at the beginning, simply more of them.

    I don't see that wiring up say an estate agent's in the high street is different from domestic, although a restaurant next door might be.

    Perhaps instead of, "domestic installer", we should have T&E only?

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