G
Gardner
Is such a system (230 volt L-L) legal under BS7671 or IEC 60364? Do I need double pole switches for light fittings?
Discuss 3x230 in the Talk Electrician area at ElectriciansForums.net
No definately illegal. 5 years, no parole.Is such a system (230 volt L-L) legal under BS7671 or IEC 60364? Do I need double pole switches for light fittings?
No definately illegal. 5 years, no parole.
Think the measurement may have been taken between taking two lines of cocaine lolAm I missing something? Where or how are you measuring 230v between two lines?
Am I missing something? Where or how are you measuring 230v between two lines?
Hang about... Do you live in some weird part of the world?
Probably Derbyshire.Hang about... Do you live in some weird part of the world?
When you say 'system' is the building supply 2 phases as you describe without a neutral or is this just a final circuit.Is such a system (230 volt L-L) legal under BS7671 or IEC 60364? Do I need double pole switches for light fittings?
Cape Town.Where do you live?
Since 133V isn't a normal supply voltage, SP loads would all have to be connected L-L and for practical purposes it would be used as a delta supply. Whilst delta power is common for certain applications, e.g. shipboard, it can make things a lot harder. All switching and OCP must be DP, so you can't use 13A plugs for example.
Illegal - no, but not terribly useful for most applications and a general purpose electrical installation fed that way might be considered unfit for purpose.
When you say 'system' is the building supply 2 phases as you describe without a neutral or is this just a final circuit.
Either way the answer is yes in most places on the planet (including Derbyshire....wherever it may be), you'd need every point of consumption including light fittings to be supplied by a double pole switch.
I think England is in Derbyshire and Derbyshire is part of the UK, but I might be wrong .
Yes, lights would need DP switching otherwise the lampholder would still be live w.r.t. earth with the switch off.
You pull the plug out! BTW, the very reason that Schuko isn't polarised, is that this method of supply was once used in Germany, and there was no advantage polarising the connector when both sides were lines. But that was phased out (see what I did there?) in favour of ordinary star 230/400.
The wiring of buildings comes under a different set of regulations than the construction of portable appliances. For a start, BS7671 is specific to the UK (although it references and relies on many harmonised standards) whereas appliances in the EU are generally applicable anywhere.
Can someone quote the OP the reg number of '...must break all line conductors...'?
You couldn't use screw lampholders on this systwm you are proposing as the regulations require that line only be connected to the centre pin and neutral to the outer contact. You would have to use BC for GLS lampsBut if its ok for a table lamp, why would it be different for a light fitting? Unless the socket is designed to denergize the screw shell when removing the bulb?
Double pole switches would be easy, but 2 way switches would be a challenge.
You couldn't use screw lampholders on this systwm you are proposing as the regulations require that line only be connected to the centre pin and neutral to the outer contact. You would have to use BC for GLS lamps
How do table lamps get away with Schuko plugs though? Id imagine some safety mechanism is used on those sockets.
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