Replacing ceiling rose with new flush mounting light fitting

[manishpatel1971]

I wonder if someone can help me, I am replacing my hall way lights with flush mounting light fittings, the exisitng setup is two seperate ceiling roses which come on at the same time and the usual setup where the lights are operated by multiple switches.

When I remove the rose cap I found the following....

N = 3 Black and 1 Blue
Loop = 3 Red
Line = 1 Yellow with Red sleve and 1 Red
Earth = 2 Yellow/Green

The new fitting have a standard 3 block strip connector, N, Earth and L.

I think the following shopuld happen....

All N to N, Loop to be isolated by it self and all Line to L.

What I am worries about is connecting 4 cables to a strip and the 3 reds, should I crimp the cables (using a rachet crimp) before connecting them to the strip and the 3 reds aain crimp to a seperate strip block or a butt crimp.

Advice would be great

 

[breezer]

what about the switch wire, you havent said what you are going to do with that

 

[manishpatel1971]

I think the Line is the Switch wire as it has the sleeve round it.

 

[breezer]

i should say so too

 

[plugwash]

N = 3 Black and 1 Blue
Loop = 3 Red
Line = 1 Yellow with Red sleve and 1 Red
Earth = 2 Yellow/Green

looks like the switch wire is three and earth with the red as live. Yellow as the switched live and blue as a neutral.

neutrals in the switch wire are unusual but not unheared of (maybe its for runnign wall lights or something)

i take it the light flex is joined to "Line" and N?

line was used at one stage as another word for the "live" conductor. Using the term live for that conductor went out of favour with the coming of regs that treated neutral as a live conductor from a protection point of view. The term line has largely fallen out of use though with most people informally still using live and in more formal works using phase.

 

[plugwash]

and yes a ratchet crimper is fine for making the loop joint within the new fitting provided there is room.

You really shouldn't leave individual cores exposed though so if there isn't room in the fitting for all the wiring its best to join to a new length of cable with crimps in a chockbox