3x230

[Gardner]

Is such a system (230 volt L-L) legal under BS7671 or IEC 60364? Do I need double pole switches for light fittings?

 

[TJ Anderson]

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.

 

[Gardner]

No definately illegal. 5 years, no parole.

What parts of the regs forbid it?

 

[uksparks]

Am I missing something? Where or how are you measuring 230v between two lines?

 

[TJ Anderson]

Am I missing something? Where or how are you measuring 230v between two lines?

Think the measurement may have been taken between taking two lines of cocaine lol

 

[Gardner]

Am I missing something? Where or how are you measuring 230v between two lines?

Supply coming into the building. 230 between L-L 135 volts L-PE.

 

[uksparks]

Hang about... Do you live in some weird part of the world?

 

[Gardner]

Hang about... Do you live in some weird part of the world?

This is outside the UK. But would such a system be legal over the typical 230/400Y system?

 

[sparksburnout]

Hang about... Do you live in some weird part of the world?

Probably Derbyshire.

 

[Gardner]

IS Derbyshire in the UK?

 

[Marvo]

Is such a system (230 volt L-L) legal under BS7671 or IEC 60364? Do I need double pole switches for light fittings?

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 .

 

[uksparks]

Where do you live?

 

[Lucien Nunes]

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.

 

[Marvo]

Where do you live?

Cape Town.

 

[Gardner]

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.

All loads are indeed connected L-L with 2 pole MCBs used on all circuits.

The switching I am unsure about. Would lights still need DP switching?

Illegal - no, but not terribly useful for most applications and a general purpose electrical installation fed that way might be considered unfit for purpose.

Sounds like a lot of draw backs. Is switching on of them?