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I know it doesnt sound very serious but I urgently need a wiring diagram
of two way switching in UK's old councill house.

This is one of the systems where every one way switch has three live wires in it.
I know how it works but have no idea how 2 way switching is organised in system like that.
What I have is two switches with three wires (red) in each. One rose with one phase (red) wire.
When circuit is powered all wires in switch boxes are live at the same time (all six of them) but the one in ceiling rose is not. Maybe I should say not quite live :confused:. Saying not quite I mean that voltage between neutral and phase is 35V:confused::confused::confused:. And I'm absolutely sure as I've checked twice and even got my FLUKE tester to confirm this strange reading. FLUKE said 40V.

Has anyone had situation like that before.
1) Any ideas what may cause such tremendous voltage drop?? Distance between rose and CU is less than 3 meteres. I,ve already checked all roses for loose connections.

2)Any links to diagrams of this kind of system?

Thanks for any help
 
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