so over the last couple of weeks i've been doing quite a lot of renovation work to um
my children's bedrooms and i'm just doing this video now just to show some of the electrical
bits and pieces that we've done in there nothing's particularly
fancy but i just wanted to um demonstrate some of the things that we have done
so we'll take you up there now come upstairs into my daughter's bedroom as you can see
it's not finished yet there's still a lot of things still today all the skirting's put on
put new doors on etc and then we've also gone up into the attic space and that's all been
insulated and boarded so that too now needs to be for that also needs to be finished now one of
the things i wanted to point out in here is for this particular video is the sockets so you can
see the makeup table here and so there's a socket above and then there's two double sockets below
now at the moment both of these sockets are all of these sockets should be
should be dead so the reason for that is you can see that there's some hair straighteners and some
a hair dryer and it's those sort of items of equipment that can cause obviously they get very
hot so they can cause fires so if my daughter was to forget to turn them off what she can now do is
here we have a 20 amp double pole switch and that 20 amp double pole switch
controls the sockets the sockets underneath and some sockets upstairs in the attic space as well
so the idea of that is that all we have done is a 20 amp uh 20 amp radial circuit and so
the radial circuit comes to the double pole switch and then it simply then goes off to
all of the sockets etc so just by pressing the switch so it's obviously in the off position
turn it on and you can see that the tester has now become live we turn it off
and those sockets now become dead so the idea is that anything that she has plugged
in there such as the hair straighteners the hair dryers will be will be turned off
not all of the sockets in the attic space will be on that switch and there'll be two double sockets
that are left permanently live one is for the television and one is for the a fish tank
obviously those things don't want to be turned off with modern day televisions that uses that use the
internet every time they get the power gets cut to them then they need to reset the internet so that
will be the the sockets for the tv and for the fish tank will be permanently left live there will
be a socket next to her bed which she'll probably use to plug in a phone charger again that will be
left that one will be on the switch so that won't just be left turned on right let me jump in now
and do a wiring diagram with what Matt is up to so he's wiring an A3 radial circuit in his house
so consumer unit to the sockets that he's got there and he's introduced a double pole switch
A3 radial wiring 2.5 millimeter squared twin and CPC or twin and earth cables
obviously the CPC is always in our cables is bare and needs to be identified with green sleeving
and is fused at 20 amps in the consumer unit and additionally protected by an RCD rated at
30 milliamps or less so that's what we've got for our standard A3 arrangement but this double
pole switch Matt's put in is real clever trick especially with his daughter and her bedroom
so 2.5 from the consumer unit to socket number one two three or however many Matt did before going
through the double pole switch as always with these wiring diagrams the connections in here
are not exactly as they would be in the consumer unit we've got symbol for a fuse overcurrent
protection device neutral which would be your neutral bar or the top of maybe an RCBO etc
and the earth terminal within the earth bar itself so if i wire this 2.5 mil cable from the consuming
to socket number one and then we'll go through a double pole switch and explain what's going
on there so our line conductor is going to look a little bit messy because obviously i'm going to
keep crossing my conductors over as i go so line conductor and we've got our neutral conductor
and then we've got our CPC coming out the actual earth bar itself so there we come
and we've got our CPC remember sometimes i just strike it yellow just to make it look like a CPC
so that's our first 2.5 millimeter squared cable from the consumer unit to socket number one Matts
likely to have chosen all twin socket outlets and the terminations in the back are to suit in this
one this would be line here neutral and there's two CPC terminations okay so i've just shown a
single socket for it now we could have done two or three sockets before he went through the double
pole switch so let's have a little double pole switch next so he's got something similar to this
this is just out my garage but it's got a switch on it okay when we turn it over we've got supply
CPC neutral and line and then load neutral line and a CPC so that's what we've got with
our terminations there okay now i've done it slightly different here i've done top and bottom
so this would be the supply line and neutral CPC terminal and then going out for my load here
it means that Matt can obviously turn off a number of socket outlets which you described in the video
itself so we now bring from this socket here a 2.5 millimeter squared cable and we bring it into our
double pole switch so let's start off let's do the the CPC first i've made just one earth terminal
in here we'll strike that with yellow so again this is the CPC coming in in the 2.5 mil cable
we've got our line conductor so i'll bring out a line conductor into here and we've got our neutral
as well so that becomes the 2.5 millimeter squared cable from whichever socket Matt determined to use
that went through his double pole switch now every socket off here now can be isolated so by
operating this switch by when his daughter leaves her bedroom she can turn off the lights as well as
this switch it will turn off the sockets around the dressing table area Matt was a bit concerned
she might leave on hair straighteners or something like that so another 2.5 millimeter square cable
now from the load side feeds the sockets that Matt wants to turn off so we'll come out of what
i've made as my CPC terminal here and we'll go across to here again we'll just strike that yellow
i'd expect you to be using a ruler if you were copying this drawing out
so out of the load side now we bring out our line conductor so just got to make sure we get
these in the right orientation so we bring out a line conductor we bring out our neutral conductor
and what we've done there is take a 2.5 millimeter squared cable now from the load side okay so
we go to the sockets and Matt now can turn them off leave them permanently on if you wanted to
but Matt's got the ability at his door for his daughter to turn off those sockets he's worried
about he left the one on for like the tv and that because he didn't want to have to keep
resetting the wi-fi so it was a number of sockets that went from the consume unit to a number of
sockets on the A3 radial before he went through his double pole switch and let's continue that
on to another socket outlet as well so again in 2.5 millimeter squared twin and CPC cable
we come across to our last socket outlet so there we go that's what Matt's done
in his property in order that he can isolate some of the sockets that he's worried about he did it
using a 20 amp double pole switch he wired an A3 radial with a 20 amp fuse with a 30 milliamp RCD
he took 2.5 millimeter squared cable to a number of sockets
before passing it through the double pole switch meaning you can isolate a number of sockets
when he left the room or his daughter left the room hopefully this idea of using an A3 radial
circuit with a 20 amp breaker controlled from a switch this time i'm coming into my son's bedroom
and we've done a very similar setup in here so we have a 20 amp double pole switch here
and the light switch is just above it and then in the room we have a 13
double socket here and then we have various 13 amp circuits behind his desk and underneath the desk
we also have a 13 amp socket up here and as you can see the tv is plugged into that now this tv um
we will be eventually getting him a new tv and that will be mounted up on the wall and so again
that switch that 20 amp double pole switch won't control this socket it will only control all of
the other sockets that are in the room so they can be just turned on and off as as and when whereas
the socket behind the tv will be permanently permanently live which means that the um it
won't need to be reset every time the power has been turned on or turned off so again hopefully
that's might give some good ideas for some of you guys that are doing some work on your houses