I had some wall lights installed in a downstairs room and connected to a two gang light switch, the other gang being for the main light. SHMBO wants two more wall lights on the opposite wall but on the same switch. The wiring to the existing lights goes down the wall, I'm fairly sure that I will be able to locate the cables under the floor of the upstairs room (haven't looked yet though), but don't think I will be able to run a new cable down the wall to one of the existing fittings or the switch to pick up a supply. What am I allowed to do to pick up a supply? Can I cut the existing wire and join in a couple of new feeds somehow, if so how? I don't think a junction box is allowed if its going to be under the floor? Thanks for any help.
J803/J804 junction boxes are Maintenance Free so can be concealed. They have four ways on each of the L, N, E & SL connections
You could use wago in a suitable container and tap into the feed going to the other light and run a cable to the new lights...
Thanks all. I'll have a look under the floor tomorrow, see what I have to work with but probably one of these should do? https://www.screwfix.com/p/wago-light-junction-box/8423
That would do, but you will need connectors too. Jost go to a wholesaler and get the J803 or J804 https://hager.com/uk/products/h/j803-32-amp-3-terminals-power- https://hager.com/uk/products/h/j804-20-amp-4-terminals-lighting-
Will they be ok at 20amp or 32amp? This is going to service a wall light will a 4 watt led bulb. Thanks.
All lighting should be on a 6 amp mcb with rcd protection so even if the wago connectors are rated higher they will still only get 6 amps max going through them..
I'm thinking of getting the Hager maintenance free connectors as FlyByNight suggested, but never used them before. Will they join four 1.5 mm2 cables or even a mix with 1 mm2 cables?
Yes. There are 4 x Live, 4 x Neutral, 4 x Earth & 4 x SwLive (J804) with each capable of holding 0.5 - 4.0 mm
Yes, the Live block has four individual clamp terminals - so you insert wire one into each, similarly the neutral and earth. So, you will have incoming , original light, new light1 and new light2. You can see, 8 holes in pairs, on the other side are 8 more. The first pair on each side make 4, the second pair make another 4 ...
Just cleanly strip each conductor to the correct length, sleeve the earth, and insert, clamp the T&E, screw junction box to joist and then screw shut. for 1/1.5mm it is easier to push down on the top button to make insertion easier.