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Hi all
In a bit of situation and need some advice
In middle landing i have a box with feed coming in then cable going to lamp both tween and earth then from same box 3 core and earth going to bottom landing another 3 core and earth going to other side of landing and from otherside of landing 3 core and earth to top landing , how can i make connection in middle landing for switching the light from all points thanks in advance
 

Lucien Nunes

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I'm not sure if you mean that the box with the feed and light cables is itself a switch position, but if it is, it needs to be an intermediate. The one on the other side of the landing is an intermediate, while the top and bottom positions are 2-ways. You can use either 'conventional' wiring (PL and SL to 2-way commons via 3rd cores) or 'conversion' (PL and SL to L1 and L2, commons strapped via 3rd cores) either is equally convenient and effective with this cable layout.
 

timhoward

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It sounds like it's having the neutral at the first switch that is confusing matters. The Neutral from the feed needs connecting to the Neutral going to the light.
That leaves a Permanent Live feed (PL) and a Live going to the light.

At that point, a diagram like this might make sense:
 

Lucien Nunes

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Noting that using the 'conversion' method shown in that link, the PL and SL can be connected to L1 and L2 at any switch or paralleled with any run of the 3-core, including at an intermediate or in between two intermediates.

Not applicable to the OP, whose PL and SL are in the same box, but worth noting: What you cannot do with that method is join PL into one run of 3C+E and SL into another (although clearly they can be at opposite ends of the same 3C+E). But you can do that with 'conventional' connection, where the 3rd core is used where needed to get PL and SL to the 2-way commons.
 

Lou7

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2 way switches top and bottom, 2 x intermediate on middle landing. Live and switch line in with the strappers.
 

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if you are realy strugling consider capping them all and use Quinetic.
its newer a good idea to connect and power on the wires if you are unsure how they work...
 

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