Replacing light fitting with unusual ceiling rose wiring?

[elbarto]

In order to install a new bedroom ceiling light, I've taken apart the existing ceiling rose and don't quite understand what I see. The wiring doesn't seem to correspond with wiring examples that I've seen on here and other sites.

Here's the existing wiring:

Untitled

• elbarto
• 8 Jan 2013
• 1

A couple of questions:
1) Is this normal, or anything I need to be concerned about?
2) I'm replacing this with a new light fitting which needs an earth, neutral and switched live supply. I assume my best option is to rewire what's in the image using connector blocks in the loft space above and then feeding a single 3 way cable through the ceiling space?

 

[bernardgreen]

That is quite normal

From Left

Brown live to lamp
Blue ( which should have a brown sleeve ) Switched live from switch

Brown Live to switch
Brown Live from another rose ( the supply to this rose )
Empty

Blue Neutral from anothe rose ( the supply to this rose )
Empty
Blue Neutral to lamp

 

[PrenticeBoyofDerry]

Looks like you have a standard loop-in type installation at the ceiling rose.
The blue to the left terminated with the brown flex of lampholder, is a "switch live" this should be sleeved brown to identify this.

The two brown conductors in the central connector are your live loop, when disconnected one is permanently live the other supply's the switch with a live supply.

The two blues to right are flex of lampholder and the other the neutral conductor.

If your fitting does not offer a spare terminal for the live loop, a separate connection block is required for these to be connect together.

And earths connected to earth terminal, ideally sleeved individually.

Would not bother terminating cables in loft, keep them within fitting and easily accessible.

 

[ban-all-sheds]

The wiring doesn't seem to correspond with wiring examples that I've seen on here and other sites.

It is exactly like the examples you have seen here and on other sites.

A bit more studying before any more doing is advised...