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3 phase domestic

goldenboy1818

Hi all. I am a domestic electrician and I only work on houses. We do a lot of standard new builds.

Some of the new upcoming houses are said to have a 3 phase supply, I'm not entirely sure how this affects me, what do I need to do different, what fuseboard etc etc

Really appreciate any advice

Thank you 

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    If you want to scare yourself off, this EFIXX video below makes a huge meal of something simple. Realistically, a 4 pole isolator like a REC 4 to give single point isolation  then feeding either 3 conventional boards or one 3 phase board fitted out with a suitable mix of single pole and 3 pole RCBOs or breakers is probably not much harder than what you do already.  But it will be a bit bigger - but it really does not need to be  that much bigger ;-)

    Some thought is needed to load balance over the phases, but it does not need to be perfect. It is not a regs requirement, but it is nice not to confuse things by having more than one phase at the same light switch e.g. for up and down stairs,  but otherwise business very much as usual.

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  • 0

    If you want to scare yourself off, this EFIXX video below makes a huge meal of something simple. Realistically, a 4 pole isolator like a REC 4 to give single point isolation  then feeding either 3 conventional boards or one 3 phase board fitted out with a suitable mix of single pole and 3 pole RCBOs or breakers is probably not much harder than what you do already.  But it will be a bit bigger - but it really does not need to be  that much bigger ;-)

    Some thought is needed to load balance over the phases, but it does not need to be perfect. It is not a regs requirement, but it is nice not to confuse things by having more than one phase at the same light switch e.g. for up and down stairs,  but otherwise business very much as usual.

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