so continuing on my wiring diagram series we have look at the three plate method
the two plate method often called taking the feed to the switch and then i came
across this method after a conversation with a gentleman that was doing his AM2 assessment
he'd gone in his pre-planning days and always recommend you do that pre-the assessment itself
and he was shown the following wiring diagram this one just here which was called wired
through the switch so this was shown to him he brought the supply into the first two way switch
we brought a three core across to our intermediate a three core across to our last two way switch
and then a cable up to the lighting point itself now in this video here i explained
what was going on with the connections and my choice of conductors for neutral etc
and it's worth checking out that video but don't rely on that video to be the one that you'll have
at your end point assessment the AM2 AM2S and AM2E will evolve over time and there's nothing
stopping them asking you to wire in the light and circuit in the traditional three plate two plate
or in this scenario where it's wired through the switch it's a bit like the conduit system isn't it
where we've got the feed into this common and the switching line out of this common here is what we
see traditionally to a certain degree when we're wiring in PVC singles in the conduit system but
you actually would have taken the neutral directly up to the lighting point and just wired through
like that so that might help you put it into context of what sort of system this is similar to
taking the feed through the switch so we're going to look at now how we can take the feed to another
area so if you wired your system like this in the real world and you think yourself will now need
to take my supply into another room we're going to look at how we do that bearing in mind we do
have a neutral every single light switch from the system that we've wired here as well as a
CPC so we're gonna have a look at that and we'll also look at how we can add more lighting points
to the circuit so let's let's break down what we've got here so you probably would thinking
ah so if i've got a neutral at each of my lighting points i could come off any of these points to
feed another room well let's think about that so in this lighting point here yes we do have a CPC
and if i needed to bring a feed into another room i'm going to need to take the CPC through
i have a neutral which is in a probably a Wago style connector in there and i have have i got
a permanent line connection well this one here will be only energized when obviously the lighting
point is on and obviously we can't guarantee that these will remain on at all times as we flick
between our switching sequences so therefore you wouldn't be able to come out of this two way light
switch with a neutral a CPC and a permanent line connection to another room because one of these
lines would come on and off in the switching sequence meaning the room you've just wired
may only work its lighting point in the energized position when the light in this room was on
so you wouldn't be able to take it out of here and the same process repeats here so you might have
a neutral and a CPC but you've got your strappers here and you can't guarantee that they're going to
remain permanently connected to the line conductor at all times in order to take a feed to another
room so we come back down to this one here which was our first switch which had our feed coming in
a permanent line into common our neutral into our connector and our CPC into the back of the box
this switch here this two way switch here is the one that we can
obviously use to go into another area so we can take our supply from here and go to another room
we could do the three plate method in there we could do the two plate or you could do
the wired through the switch method that we've got here so all it would need us to do is take
another connection out of turn it around this way so you can see the writings of the right way
take another connection out the common so that would be where our permanent line connection is so
one out of here so another one out of here out of the common you take another connection out of your
221 so it might be a case of having to swap it over for a three conductor connector of the Wago
221's and obviously our CPC connection and then go with a cable through the fabric of the building
under floors through ceilings etc in order that you take a feed to the other room so does that
make sense we can't come out of here and here even though we have a neutral which sounds great
we would come out from here to the next room so we would take a cable from our common to the
next room we'd come out of our connector with our neutral and we would come out with our CPC
i'll just put a little bit of yellow down it and that would go off through the fabric
of the building to feed the next area in which we're working in so that's how we would do that
and i know it's quite easy to think oh maybe i could come off one of these two but it's actually
here we've got a permanent line connection CPC in neutral we have CPC's and neutrals in these but no
consistent permanent line connection so that would be taken off into our next area
and the process could repeat itself once again lighting points we're probably used to where we're
only bringing one cable up which has a switching line a neutral and a CPC to a lighting point
i probably used to fit in LED down lights in that area we'll reduce the number of cables here
so therefore it makes it easier for us to make connections in this case we would need to have a
joint on the end it might be a Wago box or it might be something like this one here Collingwood
easy fit connector etcetera in order that we can make our connections for our fixed
wiring and our flexible wiring and we can make some connections in here as well or
we might be lucky enough to have a lighting point that actually has our connections so
we've got switching line CPC neutral neutral CPC switching line and our connections go in there
so in this case we'd have these three in and then we'd take another three off
to feed another LED downlight okay so that's the process there so if we wanted more downlights in
this system exactly the same as we've looked at in our two plate system we're going to just
come out of here in the same area to a series of down lights depending on how many you can have
remember there is a limit to the number of lighting points you can have on one switch
i recommend you check out our eFIXX apprentice hub and know how tabs the know how tabs got CPD
on that so we would come out with our switching line conductor we would come out with our neutral
and we would come out with our CPC across to the next light in the area
in order these two lighting points then come on together so now we've added
an additional LED down light or downlight of some variety by just introducing another cable so we
just introduced the neutral CPC and switching line from the first light in the area across to
the second one and we repeat the process on for as many downlights as you can have but remember
to check out that know how tab on the efixx.co.uk in order to look at part L of the Building Regs
which actually suggests the maximum number of uh points you can have on one switch okay so
we just bring it and we just keep repeating the process for the number of down lights that we need
so we'll bring it across and then we've obviously got three down lights now connected
to this switching sequence so we've got two way and intermediate in this case now we're
controlling three lights we've now worked out that we can take from our first two way switch that has
our permanent line and neutral and CPC the supply over to the other area that you want to wire in
using this method here i recommend that for your AM2 AM2S and AM2E that you've mastered all your
skills not just necessarily how to wire a maybe quite a simplistic lighting circuit but make sure
you're fully averse with all the wiring systems and all the ways of connecting stuff i will try
and continue on to do more videos helping you towards your endpoint assessment AM2 and AM2S and
AM2E as the months and weeks go on but this one here was all about as we go back to our original
drawing it was all about wired through the switch and i just extended it on to say to you if you
use this method in the real world your feed can come out of here to go to another area and as
always we continue to loop onto multiple points on the same switching system in the same area
so as always I hope this video has been some help