i've been doing an EICR and there's been a problem with the lighting circuit i'm just trying to sort
that out if we just look up here this is what i've been doing i know it looks a mess but it's
just to explain for the video so there's obviously a lights there and then there's switch and there's
a light switch here as well one of the things that the customer also what the previous person
had picked up and i know there's exposed copper there but it's only temporary just to show the
video the previous electrician had said this was wired up in aluminium and said that it needs to
be completely rewired it doesn't because it's tinned copper and so there's nothing wrong with
that so the only problem with this it didn't have a CPC on it so a separate one has been
run down i didn't do that had been done previous by someone else how to sort that out the purpose
of the video today is for me just to show you a different way of wiring up a two way lighting
circuit you've just got a three core cable there again forget there's no CPC that's not
the purpose of the video for this and you've got a three core over here so if you see we've put
the common on both switches the common is in the white cable is the common and then we've got the
red and the blue cable into L1 and L2 and that's the same on both sides now if we come up here
again i've just done it with Wago's rather than a joint box at the moment just to show
how simple this method really is now i couldn't get access the customer's quite happy to chop
the ceiling out do it from there and find the junction box so we've been able to do
that here you've got the two three core cables here because it's quite common on a on a two way
lighting circuit the commons simply just need to be joined together whether it's a two way or
two way an intermediate the common go in from that switch and that switch in this case we've used the
white wire that's just joined together and left as it is on this cable here and this cable here
okay this is the main lighting circuit we've got the live conductor or the line conductors
and then you've got the two neutral conductors and so you've got the supply coming in and the
supply going out and at the moment all i've done is just put them in Wago connectors so if we look
here we've got on the neutral i've just took a temporary light here just to prove for the purpose
of the video i've just took a neutral straight to the light obviously there's no CPC no earth at the
moment but this isn't obviously going to stay like this now we're going to look at the three core
cables or the two way lighting as said previously the two white wires i've used as the commons then
we've got the two reds and i think in this case they're in L1 or L2 it doesn't really matter to
be honest got two reds joined together and i've got the two blues joined together so you've got
both the red and the blue is the L1 L2 connections of both switches all i need to do to make turn
this into a two way lighting circuit is join the live supply so i've got a live conductor here and
i've took that into one of the what we'd call the strapper wires so i've took that to the red
so therefore the red at that switch and the red at that switch is permanently live
and that's quite common with doing a normal two way lighting circuit and then on the other
side on the blue conductor which is still a live conductor i've then took that one
to the actual light fitting itself what i'll do with this because there's not a lot of cable i'm
going to put this all in a joint box i'll probably use one of the nice square Wago boxes join it all
up together and then just take a feed down to where the light is i'll just draw it out for you
so let's say we've got one light switch here and one light switch here so just represent the two
way lighting all i've done is i've simply joined the two commons together and again i've joined
the two strappers together
and then all i've done it took a live supply do a little arrow there
a live supplier line shall we say line conductor coming in so that's coming in
on this one and it could potentially come off this one but for the purpose of the diagram
we'll just come off this one and then we've come off this one and so this is our switch
live or switch line whatever you want to call it and then that goes to our light
which is then fed which has then got the neutral on the other side
so let's just see what's happening on this circuit and so now if i operate this light switch
it comes on i walk over to this one it goes off and come back again to
the other switch and it turns on so therefore we've now got a nice two way lighting circuit
so we've got so in in this particular position so we've got a line conductor coming in here
it's coming along this strapper here up here up to the switch and back so at the moment
all that is energized is this part of the circuit so nothing is so this switch will not be switched
on so now let's just cross that out and turn this switch to the on position and now let's
see what happens we've got a line conductor coming in follows up here across to here
and it looks like the light will illuminate now let's operate the other switch
into that position so now what happens the line conductor is here it can't go
up there comes across here to there can't go across there so the light therefore turns off
if we then go back to this switch and turn it on just like i did in the video
now what we see is this stays the same so this stays live up to here but now because this switch
has moved across to here it now goes up to the common across to the common to the switch live
and the light then comes on and that's just what we did on the video nice and simple