I've got 3 phases in my house, 1 is dedicated to audio and even has a seperate ground pin, pretty well covered there

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Bloody hell how big is your house raphie? Why would you need 3 phases? Or is this common over there?

As for balancing your loads, in a domestic situation I doubt they would be much need, its not like you'll be pulling much at any given time or have an abnormal amount of inductave loads running on 1 line. You're also always going to get earth leakage. That's why you test RCDs for nuisance tripping, and depending where the RCD is placed would determine its rating in mA as it can really build up over many circuits but its by no means a bad thing.

It must just be an american thing

basically most new upmarket houses in NL have like 6 or 8 groups and 3 phases

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Groups?? Sorry the terminology is different in England, I've only just worked out what rann was saying with the help of storytellers link and I'm an electrician lol.

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Originally posted by Robotrance all european (except in stupid norway up until recently where ground and neutral was combined) houses have 400V 3 phase + neutral + earth in.

In england we mainly use 3 systems. TNS, TNCS, and TT. TNCS where earth and neutral is combined is pretty common around here, but it is very unusual to find a house with 3phases to it.

Yeah kind of... Say you have 3 phase going into a street, 1 phase for 1 house, next phase for the next house and so on etc..

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Originally posted by Andy28 Groups?? Sorry the terminology is different in England, I've only just worked out what rann was saying with the help of storytellers link and I'm an electrician lol.

groups = in-house electrical circuit behind a fuse/circuit-breaker.
So he'd have 6-8 seperate circuits in house with their own circuit breaker.

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If less is more think about how much more more would be. -Frasier

Thanks, I thought as much. We just call them circuits.

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Originally posted by Robotrance all european (except in stupid norway up until recently where ground and neutral was combined) houses have 400V 3 phase + neutral + earth in. from these three faces you will by default have 3 main "buses" of 230V as each phase to earth is 230V. http://en.wikipedia.org/wiki/Earthi...tem#TN_networks these 3 buses of 230V can then be devided again into separate 10A, 16A, 25A fuses for separate grains to bathrooms and kitchen, livingroom, bedroom etc. raphie do you have one of the 3 main phases to your studio only? that is pretty special but it also means that you probably have kitchen and bathroom combined on one phase, and livingroom + bedrooms all on another phase probably with separate fuses for each room or something? or do you just mean that you have a separate fuse for the studio, ie a grain on one of the main phases? this is a big difference, i would measure earthing if i was you.

Phase 3 is only bedrooms (with no polutors) and studio
indeed one is kitchen and living and 2 are all "wett groups"
within phase 3 i've got my own circuit breaker for the studio
I'm not sure how they did the earth but i had a huge pin been hammered into the floor when house was built, so not sure if i got got 2 or they "upgraded" the pin

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So for UK if I wanted a separate circuit for the studio I'd get an electrician to take a fresh feed from the consumer unit, assuming there was capacity there?

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Originally posted by Raphie I'm not sure how they did the earth but i had a huge pin been hammered into the floor when house was built, so not sure if i got got 2 or they "upgraded" the pin

I can't comment because I know shit about earthing systems in Holland. In England however you would generally only have an earth rod on a TT system, and the earth fault paths can be pretty poor on them compered to say TNS or TNCS where the earth is a cable (either separate or combined with the neutral) that goes all the way back to its source giving very low impedance values, which is what you want (i.e. having a good earth)

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Originally posted by tehlord So for UK if I wanted a separate circuit for the studio I'd get an electrician to take a fresh feed from the consumer unit, assuming there was capacity there?

Yes but since you probably have a single phase board where everything is essentially common with one another, I doubt there will be any benefit from doing this other than giving you moar power which you don't need anyway as I assume you won't be overloading your existing socket circuit.

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Originally posted by Andy28 Yes but since you probably have a single phase board where everything is essentially common with one another, I doubt there will be any benefit from doing this other than giving you moar power which you don't need anyway as I assume you won't be overloading your existing socket circuit.

What about if I swapped out the consumer unit?

One thing that concerns me in the studio I plan to build is running multiple extension sockets. I'll need to plug in 20-30 devices.

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