Wiring a junction box to be able to move a light fitting

[Yukster]

I've got one wire in, one wire out and one wire coming from the light switch. Unfortunately, I labeled the wires when removing the old light fitting. But when i pulled the wires of the labels came off. Do I connect the brown or blue wire to the pair of black wires? Thanks

Untitled

• Yukster
• 20 Oct 2013
• 1

Oops. I think the answer was already posted in wiring instructions Will this junction box do the job? I wont have access to it once the insolation and flooring are laid http://img118.imageshack.us/img118/2750/jblp4.gif

 

[PrenticeBoyofDerry]

Why do you require a junction box? Are you actually moving the fitting and do not have enough cable to extend to the new location, if so a maintenance free joint will be required if the joint is not going to be left easily accessible.

With regards to the arrangement of the core colours, only be testing the circuit could you be sure. I have come across on many occasions, where the colours of the conductors have been incorrectly identified for the purpose they were serving.

 

[Yukster]

Are you actually moving the fitting and do not have enough cable to extend to the new location, if so a maintenance free joint will be required.

Thanks. What good quality maintenance free joint (preferably from screwfix who are around the corner from me) can you recommend. I need only one 2x3 and 1x2 wires connection. I would get the wago box but the clamps are sold in a pack of 100 which I don't need.

 

[riveralt]

If this is for the chandelier you posted earlier, then you may have enough space in the chandelier cup to connect these cables via a small connector block with 4 terminals.
One for your live loop - 3 reds
One for your neutral loop - 2 blacks
One for your earth loop.
One for your switch live (black (put a red tape around it))
Then use the other side of the connector block terminals to connect:
Your lamp live to the switch live (black with red tape)
Your lamp neutral to the neutral.

 

[Yukster]

If this is for the chandelier you posted earlier,

Yes. The wire in and the wire from the switch are not long enough to reach the chandelier in its new location. My idea (perhaps not a good one) was to use a connection box in the loft where the old light fixing was installed and extend with the chandelier wire (I've got loads of spare). I am happy yo use a connection block as you suggested if I find a safe way to extend the in and switch wire in the loft. Is there a way to do that (I have no idea what is allowed and what is not)? Thanks

 

[riveralt]

If you have access to the loft area then use can use one of these with the connector blocks I mentioned. Use a piece of Twin and Earth to extend the switch live, neutral and earth from the chocbox to the chandelier cup and use another small connector block there.
http://www.screwfix.com/p/chocbox/54936

If you do not have access to the loft area then you can use one of these:
http://www.tlc-direct.co.uk/Products/ASJ804.html
Connect it as described earlier with extended T&E to the lamp - push it up into the space (hole) by the old ceiling rose.

Another option (frowned upon by some) is to extend the ceiling rose cables by crimping the old with the new. Do not do this unless you know what you are doing and use the appropriate tools - ie ratchet type crimper.

 

[PrenticeBoyofDerry]

If the junction box is within the loft space and easily accessible, that location would be fine for the use of standard junction box. Unfortunately screwfix do not sell MF junction boxes. http://www.hager.co.uk/products/wiring-accessories/junction-boxes/12406.htm
But any good electrical wholesaler wouid have them on the shelve.

 

[Yukster]

If the junction box is within the loft space and easily accessible, that location would be fine for the use of standard junction box. Unfortunately screwfix do not sell MF junction boxes. http://www.hager.co.uk/products/wiring-accessories/junction-boxes/12406.htm
But any good electrical wholesaler would have them on the shelve.

Thanks, i've got one near my work. I plan to install the jb and then to insulate and put flooring so I definitely need an mf jb. How would I know the difference between a standard and MF junction box (just to be sure that I buy the right part)?

 

[PrenticeBoyofDerry]

If you go to an electrical wholesalers, explain that you require a 20A MF(maintenance free) junction box, they should know what you require.
They look this
http://www.tlc-direct.co.uk/Products/ASJ804.html

 

[riveralt]

Thanks, i've got one near my work. I plan to install the jb and then to insulate and put flooring so I definitely need an mf jb. How would I know the difference between a standard and MF junction box (just to be sure that I buy the right part)?

I showed you a maintenance free jb before:
http://www.tlc-direct.co.uk/Products/ASJ804.html

 

[Yukster]

Thanks, i've got one near my work. I plan to install the jb and then to insulate and put flooring so I definitely need an mf jb. How would I know the difference between a standard and MF junction box (just to be sure that I buy the right part)?

I showed you a maintenance free jb before:
http://www.tlc-direct.co.uk/Products/ASJ804.html[/QUOTE]
I saw your link but i can't get to tlc-direct before Friday. Ordering it online will come up to £8.52! So if I go to a shop, they may not have this particular one. It'll help me if you can say how to spot the right jb but if not don't worry, I'll manage

 

[JohnW2]

I showed you a maintenance free jb before: http://www.tlc-direct.co.uk/Products/ASJ804.html[/QUOTE]I your link but i can't get to tlc-direct before Friday. So if I go to a shop, they may not have this particular one. It'll help me if you can say how to spot the right jb but if not don't worry, I'll manage

Apart from Wagos in a Wagobox, as far as I am aware that Ashley/Hagar (J804) in the TLC link is the only 'maintenance-free' JB currently available - so you have no 'alternatives' to worry about.

Kind Regards, John

 

[Yukster]

I showed you a maintenance free jb before: http://www.tlc-direct.co.uk/Products/ASJ804.html[/QUOTE]I your link but i can't get to tlc-direct before Friday. So if I go to a shop, they may not have this particular one. It'll help me if you can say how to spot the right jb but if not don't worry, I'll manage

Apart from Wagos in a Wagobox, as far as I am aware that Ashley/Hagar (J804) in the TLC link is the only 'maintenance-free' JB currently available - so you have no 'alternatives' to worry about.

Kind Regards, John

Gotya. Thanks!

 

[333rocky333]

Apart from Wagos in a Wagobox, as far as I am aware that Ashley/Hagar (J804) in the TLC link is the only 'maintenance-free' JB currently available

Kind Regards, John

There is the 3 terminal 32Amp version J803

 

[JohnW2]

Apart from Wagos in a Wagobox, as far as I am aware that Ashley/Hagar (J804) in the TLC link is the only 'maintenance-free' JB currently available

There is the 3 terminal 32Amp version J803

Grrrrh Yes, I know that, but the OP needs a 4-terminal one. I suppose I should have 'warned' him about the existence of the J803.

Kind Regards, John