can you have two separate circuits in one box junction box ?

[Jimmyb]

As the title states : can you have two separate circuits in one box junction box ?

 

[ChrisElectrical88]

For the sake of a quid?

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If it's a EICR I would code 3 it!

 

[Plonker 3]

As long as the circuits don't interfere with one another then yes you can.

 

[Jimmyb]

For the sake of a quid?

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If it's a EICR I would code 3 it![/QUOTE


Its an outside junction box with the shower cable in twin and earth coming out and jointed to swa then the garage cable in twin and earth going into swa

 

[Octopus]

I'd use 2 IP boxes!

 

[ChrisElectrical88]

As above. Take it it's not 400v 3 phase then.

 

[MDJ]

As the title states : can you have two separate circuits in one box junction box ?

well lets put it this way----------how would you extend the circuits to a distribution board if it needed to be moved 2 ft away from it's current position and none of the existing cabling would reach?

 

[Octopus]

well lets put it this way----------how would you extend the circuits to a distribution board if it needed to be moved 2 ft away from it's current position and none of the existing cabling would reach?

That's different IMHO 2 ft away is very different to being remote from the CU

 

[Jimmyb]

no its just single phase. could spilt them into two boxes but pointless if the regs allow it first.

 

[tbs1983]

A former supervisor of mine once told us not to wire two seperate lighting circuits into a multi gang switch, as there was the potential for 400v there.
Fine, but it was a single phase installation! he was adamant in what he was saying was right !!!

 

[Plonker 3]

That's different IMHO 2 ft away is very different to being remote from the CU

But the question is, "can you?" Not "would you?"

 

[MDJ]

A former supervisor of mine once told us not to wire two seperate lighting circuits into a multi gang switch, as there was the potential for 400v there.
Fine, but it was a single phase installation! he was adamant in what he was saying was right !!!

That old wives tale again, a label on the switch sorts that out providing of course the switch is sufficient as in a barrier between phases, I must admit I do not care for 3 phases in switches either.

 

[Plonker 3]

A former supervisor of mine once told us not to wire two seperate lighting circuits into a multi gang switch, as there was the potential for 400v there.
Fine, but it was a single phase installation! he was adamant in what he was saying was right !!!

How does he cope with 3 phase DBs then?

 

[yellowvanman]

no its just single phase. could spilt them into two boxes but pointless if the regs allow it first.

I would put a label in there to warn that its 2 different circuits.

 

[MDJ]

But the question is, "can you?" Not "would you?"

Nothing wrong with it at all IMO, Labels should be used though In my view.

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I would put a label in there to warn that its 2 different circuits.

Beat me too it haha

 

[Octopus]

But the question is, "can you?" Not "would you?"

Obviously!! lol

So I posed a similar question a couple of years back and decided in the end to use separate JB's

So could you - yes

Would you - probably not!

 

[Silly Sausage]

Labels or not, by following safe isolation procedures, one would test everything is dead!

 

[jamie-spark]

As the title states : can you have two separate circuits in one box junction box ?

Yes. only a label complying with 514.11.1

 

[jamie-spark]

A former supervisor of mine once told us not to wire two seperate lighting circuits into a multi gang switch, as there was the potential for 400v there.
Fine, but it was a single phase installation! he was adamant in what he was saying was right !!!

Nothing wrong with that.

Technically only label complying with 514.11.1 is needed but most people follow good practice and fit a 400v label ( although it is not required )

 

[ChrisElectrical88]

That old wives tale again, a label on the switch sorts that out providing of course the switch is sufficient as in a barrier between phases, I must admit I do not care for 3 phases in switches either.

I have done it a few times but would rather put 2 2 gang grids in that a 4 gang 400v.

To the OP what exactly do you mean when you say junction box? Cause to me that's a small brown thing!