so far assessment we're gonna look to put a double set into a piece of steel conduit a double set
needs to be about 75 mil from the bottom of the steel conduit to the back of the steel conduit
that gap generated there needs to be 75 mil we allowed plus or minus 5 mil for that measurement
and we're going to look at the technique required to try and put a double set in to a certain given
the dimensions in this video I've cut my steel conduit approximately 600 millimetres long in
length and I've made a mark at a hundred and fifty mil from one end that's going to be the
first bend up into my steel conduit and to be approximately 45 degrees I tend to err on the
side of caution be slightly less than 45 degrees and then I turn it and pull the second bend you
know that's where the technique will come into play so see how that works 150 mil measurement
and marked against the wheel of my conduit bending machine and the pull my first went into slightly
less than 45 for this technique so we'll stick with that in less than 45 and we see how the
next stage goes so we've got it in and now we're gonna take it loosely off and rotate it around
so we've got a squiggly now with the 45 here I'm going to put the other one to bend it back
to give us another horizontal plane against this plan okay but it's the gap that we generated here
which is the technique we're trying to show in this video we need to make sure that our conduit
is straight and parallel going this way there's a rolled over that it follows the line through
and then we've got to set this gap here okay on site know doubt the electrician would just
pull the bend and it would fit perfectly first time because of his experience we're going to
try and show you a technique that can help you get close to the 75 mil set that you require
for the EAL assessment so I'm going to do now is use this there's a hard ruler to set this a
dimension off the former itself uses a straight edge off the former and then work out with there
I need to take my conduit through further into the machine making the gap bigger or put it back for
in the machine to make the gap smaller remember in the gaps should be 75 mil for the assessment
using this rule as a straight edge of the former so it's laying against the former we're going to
use that to generate the position we'll which we can make our measurement so that at the moment
with them horizontal to each other okay we can see the gap there if I want to make that gap bigger I
take the content and push even further and check that our horizontal that gap is now considerably
bigger likewise if I draw it back through the conduit bending machine the gap when these are
horizontal is obviously smaller we're now going to set that gap to be 75 mil before bending the
conduit back so taking the measurement from the rule to the back of the conduit here I've got
about 55 at the moment with the horizontal so I need to send the conduit further into the machine
itself okay this time I'm approaching 75 mil so I turn around to trying to show your approach in
there 75 mil in that position there there about we're gonna get some drift on the conduit bending
machine with a pull it okay so we're going to go that's approximately 75 mil this is horizontal to
the conduit the gap between there is approximately 75 mil so we're gonna bend the second one in so
this surface and the bent new surface should run parallel with each other but you should normally
get round keep looking as a guard we'll pull it and see where we are and we'll adjust did
thereafter so we're looking for this one and this one to be parallel you're looking at it straight
on the video from behind so if we go for that solid and then we can see how we can adjust it
so we do see one put it on the bench with fairly close but what done is I've set the second piece
that I've been in the correct position showing the first piece we've been actually pointing
down that's not the case we should be setting the first piece we got in the correct position okay so
that runs horizontal with the surface and looking at the second piece when we go to re-bend steel
conduit which should always bend the last piece we've bent again and not go back and rework the
first piece so when I look at that it shows that I need to put a little bit more bend in here in
order to sit that parallel with the bench itself if I do measurement mark to start with I'm about
75 already so I'm not going to be far off but this still needs a tiny little bit more bend in
it in order to run the two surfaces parallel the second bend that we're going to adjust it okay so
I get this stage where it's only a small amount of bend going in I say to my student the weight
of your arm you're almost not gonna feel it go and in order that you just get a little bit of
bend in it it's better to keep doing a couple of journeys backwards and forwards to see you've got
it in than over bend it and now struggling to pull the bend back out so put a little bit more back in
the second bend we've now got the two surfaces running horizontal and when I measure here I've
got approximately 75 mil okay between that gap okay is what we're trying together I said 70
and 80 we're approximately at 75 using a technique using just two straight lines in order to workout
where to pull the second bend so we managed to put our double set into our conduit 75mm dimension
required by the assessment a place it against one of the wall which is our template quite pleased
we can see with fairly close to the required dimensions according to the assessment itself
I'm not suggesting that technique is it easy using two straight rules in order to create any
set to a set dimension there's one worth bearing in mind when you're playing around specially when
you're training at least is the technique often people on solve will pick up a piece
of conduit to bend it in and will fit perfectly you cannot teach that so therefore I'll come up
with the ruler method in order to give you some chance of developing a set at a certain dimension