Can I use ceiling rose in loft in lieu of junc box

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Hi,

this may be a daft question but cannot see why it cannot be done.

Need to dispose of ceiling rose for new light fitting

For ease and simplicity, why cant I:-
  1. Identify and label wires in existing ceiling rose
  2. Disconnect pendant
  3. Disconnect ceiling rose
  4. Climb into loft
  5. Pull wires through
  6. Reconnect wires to ceiling rose
  7. Fix ceiling rose to joist
  8. Connect a 2 core flex to ceiling rose and send down
  9. Connect to new light fitting
  10. Voila
 
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Not often seen, but as long as the cables and rose are firmly secured, close to where the flex will drop through the ceiling, I can't see an issue.

But it needs to be 3 core flex.

And the rose needs to be accessible. If it is not, you need to replace it with an MF type.
 
I've done it a couple of times at home and still here to tell the tale, works fine.
Now lets wait and see if the experts hang me out to dry!!!:unsure::unsure::unsure:
 
As said I did use 3 core to supply an earth to the fitting.
 
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When doing any fixed wiring the wiring, and the junction have to be (well) fixed.

So the rose needs to be screwed to a joist and the cables also clipped to a joist/background. Why? because the ceiling rose (and most of the round junction boxes) do not have any strain relief to stop the cables being wrenched out when you catch your foot in the trailing wires up in the loft.

But you have a big snag, if you screw the rose to a joist you do not now have a hole to put the cables through!.

There's two obvious ways to do this properly:

1. Use a proper JB, screw it to the joist and clip the cables properly
2. If you really must leave the cables trailing around the place, then you could use one of these that are made for the purpose
 
Are you saying you have drilled a hole in the joists for the cables - or
have left the lid off the rose after connecting?

No holes drilled for cables

Ceiling rose screwed to side of joist. enough to make secure.

half the ceiling rose would be screwed against the joist and half sticking out.

or screw a baton between joists, hole in baton for wires

Replace lid on ceiling rose after connecting up as it would be if screwed to a ceiling
 
There's two obvious ways to do this properly:

1. Use a proper JB, screw it to the joist and clip the cables properly
2. If you really must leave the cables trailing around the place, then you could use one of these that are made for the purpose
[/QUOTE]

What is a proper JB? 20A or 30A? from screwfix
 
The rose will stick up above the joist, making it a target for knocks, but mounting it on a couple of short lengths of 2x1 will mean you can get the cables behind and mount the rose so it does not stick up.
 
Yeah. But if you want to pass cables through the rear, the rose will be higher than the top of the joist, unless you put a spacer behind.
 
Yeah. But if you want to pass cables through the rear, the rose will be higher than the top of the joist, unless you put a spacer behind.
Fair enough. On reflection, I guess that's what the OP was saying he had done.

It certainly would seem simpler to just use a JB - which could, again (assuming it were just a 'standard' one), be screwed to the side of a joist (with none of it sticking up above the top of the joist).

Kind Regards, John
 
Would i use a 20A or 30A JB?

And do the cables in the loop terminals all join 1 terminal in the jb?
 

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