Following on from my previous post in trying to find the main feed to
these lights. I have linked a pic, edited to make it smaller but shows
the layout, and the green lines are my non electrical assumptions on how
it maybe wired.

A couple of points: the ceiling has 2 layers of plasterboard and it
appears the way the holes for the halogens have been drilled that they
have been put in place from through those holes but cant be sure.
I am pretty sure the main feed comes from the point of where I have
indicated the light switch. I tried a mobile phone for pics but not
giving me much help.

Some of the transformers have 2 cables attached to them (as indicated)
and one of them is a different type of transformer. To me it looks as if
from the main feed there are two seperate feeds which in turn supply 2
halogens each. Hope I am making sense with this.

Looking for advice on how to move forward with this as I want to remove
the halogens and put a central light in their place. Should I try
gently tugging at the wiring?

http://i64.photobucket.com/albums/h1...ps2tua7yyq.jpg

On 02/08/2015 17:43, ss wrote:
Following on from my previous post in trying to find the main feed to
these lights. I have linked a pic, edited to make it smaller but shows
the layout, and the green lines are my non electrical assumptions on how
it maybe wired.

A couple of points: the ceiling has 2 layers of plasterboard and it
appears the way the holes for the halogens have been drilled that they
have been put in place from through those holes but cant be sure.
I am pretty sure the main feed comes from the point of where I have
indicated the light switch. I tried a mobile phone for pics but not
giving me much help.

Some of the transformers have 2 cables attached to them (as indicated)
and one of them is a different type of transformer. To me it looks as if
from the main feed there are two seperate feeds which in turn supply 2
halogens each. Hope I am making sense with this.

Looking for advice on how to move forward with this as I want to remove
the halogens and put a central light in their place. Should I try
gently tugging at the wiring?

http://i64.photobucket.com/albums/h1...ps2tua7yyq.jpg

I can't find your previous post so i may not have the full picture.

Is the 'double cabling' you refer to 'loop in/loop out' or do you mean 2
cables in parallel?

Do you have access to the switch, if so is it a normal 5A single pole
type or double pole? This should tell you if the lights are supplied by
the cable from the switch (in which case that could be used as the
source of supply for your new central light) or if it's just a switch
wire circuit (then you need to trace where that goes and that will
reveal the supply source for the spots).






--- news://freenews.netfront.net/ - complaints: ---

On 02/08/2015 18:43, Ash Burton wrote:
On 02/08/2015 17:43, ss wrote:
Following on from my previous post in trying to find the main feed to
these lights. I have linked a pic, edited to make it smaller but shows
the layout, and the green lines are my non electrical assumptions on how
it maybe wired.

A couple of points: the ceiling has 2 layers of plasterboard and it
appears the way the holes for the halogens have been drilled that they
have been put in place from through those holes but cant be sure.
I am pretty sure the main feed comes from the point of where I have
indicated the light switch. I tried a mobile phone for pics but not
giving me much help.

Some of the transformers have 2 cables attached to them (as indicated)
and one of them is a different type of transformer. To me it looks as if
from the main feed there are two seperate feeds which in turn supply 2
halogens each. Hope I am making sense with this.

Looking for advice on how to move forward with this as I want to remove
the halogens and put a central light in their place. Should I try
gently tugging at the wiring?

http://i64.photobucket.com/albums/h1...ps2tua7yyq.jpg

I can't find your previous post so i may not have the full picture.

Is the 'double cabling' you refer to 'loop in/loop out' or do you mean 2
cables in parallel?

Do you have access to the switch, if so is it a normal 5A single pole
type or double pole? This should tell you if the lights are supplied by
the cable from the switch (in which case that could be used as the
source of supply for your new central light) or if it's just a switch
wire circuit (then you need to trace where that goes and that will
reveal the supply source for the spots).

I can't find your previous post so i may not have the full picture.
"help with tracing wiring"

I have access to the switch which is outside the toilet I think I know
part of the route where it gets from the switch to the toilet ceiling
void but trying to find the connection point in the toilet ceiling void
(with minimal damage to the ceiling) so I can disconnect the halogens
and then reconnect a central light.

Not sure if single or double pole but when the switch is off I get no
reading from a non contact voltage detector at the halogen bulb wiring.
I can have a look inside the switch tomorrow if need be.

Two cables in parallel, If you think of the transformer at one end two
wires go in probably 1 in and 1 out, at the other end of the transformer
the wire goes to the halogen lamp, so thats 3 wires in total. That only
applies to 2 of the transformers the other 2 just have 1 in to feed the
transformer and 1 out to feed the halogen lamp.

The diagram below probably explains it better, the red wiring is my best
estimate as to how I think it is wired, I am trying to get access to
the `blue circle` but that is me assuming thats where the connections in
the void are made, and again assuming there is enough slack.

http://i64.photobucket.com/albums/h1...pslvt6vpen.jpg

On 02/08/2015 20:11, ss wrote:
On 02/08/2015 18:43, Ash Burton wrote:
On 02/08/2015 17:43, ss wrote:
Following on from my previous post in trying to find the main feed to
these lights. I have linked a pic, edited to make it smaller but shows
the layout, and the green lines are my non electrical assumptions on how
it maybe wired.

A couple of points: the ceiling has 2 layers of plasterboard and it
appears the way the holes for the halogens have been drilled that they
have been put in place from through those holes but cant be sure.
I am pretty sure the main feed comes from the point of where I have
indicated the light switch. I tried a mobile phone for pics but not
giving me much help.

Some of the transformers have 2 cables attached to them (as indicated)
and one of them is a different type of transformer. To me it looks as if
from the main feed there are two seperate feeds which in turn supply 2
halogens each. Hope I am making sense with this.

Looking for advice on how to move forward with this as I want to remove
the halogens and put a central light in their place. Should I try
gently tugging at the wiring?

http://i64.photobucket.com/albums/h1...ps2tua7yyq.jpg

I can't find your previous post so i may not have the full picture.

Is the 'double cabling' you refer to 'loop in/loop out' or do you mean 2
cables in parallel?

Do you have access to the switch, if so is it a normal 5A single pole
type or double pole? This should tell you if the lights are supplied by
the cable from the switch (in which case that could be used as the
source of supply for your new central light) or if it's just a switch
wire circuit (then you need to trace where that goes and that will
reveal the supply source for the spots).

I can't find your previous post so i may not have the full picture.
"help with tracing wiring"

I have access to the switch which is outside the toilet I think I know
part of the route where it gets from the switch to the toilet ceiling
void but trying to find the connection point in the toilet ceiling void
(with minimal damage to the ceiling) so I can disconnect the halogens
and then reconnect a central light.

Not sure if single or double pole but when the switch is off I get no
reading from a non contact voltage detector at the halogen bulb wiring.
I can have a look inside the switch tomorrow if need be.

Two cables in parallel, If you think of the transformer at one end two
wires go in probably 1 in and 1 out, at the other end of the transformer
the wire goes to the halogen lamp, so thats 3 wires in total. That only
applies to 2 of the transformers the other 2 just have 1 in to feed the
transformer and 1 out to feed the halogen lamp.

The diagram below probably explains it better, the red wiring is my best
estimate as to how I think it is wired, I am trying to get access to the
`blue circle` but that is me assuming thats where the connections in the
void are made, and again assuming there is enough slack.

http://i64.photobucket.com/albums/h1...pslvt6vpen.jpg


Can you reach the transformer nearest the switch through its lamp hole,
and is there enough slack on the cables to get at the connections?

If you disconnect the two mains input cables, one should be live when
the switch is turned on, but the other one won't be. The one which is
live can provide a feed to your new central light. You'll need to join
another T&E cable to it, end to end - and feed that through to where you
want your central light. Feeding it through will be your greatest
challenge because it's very likely that there will be one or more joists
in the way. Having said that, it's likely that some of the
inter-transformer cables already go through the joists - so you may be
able to re-deploy those once you've disconnected the transformers.

Don't expect it to be easy! My lounge is L-shaped and I have 12
downlighters in 3 groups of 4 with one transformer for each group. I
installed the transformers and wiring while the ceiling was down - but
planned for the transformers to be accessible through the lamp holes for
maintenance purposes. In the event, when a transformer failed, I
couldn't get at the bl**dy thing because I'd made too good a job of
clipping the wires in place - and I had to take up some floorboards in
the room above in order to replace it.
--
Cheers,
Roger
____________
Please reply to Newsgroup. Whilst email address is valid, it is seldom
checked.

On 02/08/2015 22:34, Roger Mills wrote:
Feeding it through will be your greatest challenge

I can get to the transformers, so I will gently tease as much cable out
as I can.

"Feeding it through will be your greatest challenge"
Damn I never thought of that, maybe I can tape a new wire to the
existing wire and pull it through, if I get that far.
failing that attacking the ceiling will be next :-(

No don't break them off or you will end up with no lights at all. Myself I'd
concentrate on how to wire up the new light, and leave the rest in place and
just cover over the holes. If you know where the switched supply is, then
once the new light goes on and off with the switch, just remove the
connections too the other lights and pretend they are not there!

Brian

--
From the Sofa of Brian Gaff Reply address is active
"ss" wrote in message
...
Following on from my previous post in trying to find the main feed to
these lights. I have linked a pic, edited to make it smaller but shows the
layout, and the green lines are my non electrical assumptions on how it
maybe wired.

A couple of points: the ceiling has 2 layers of plasterboard and it
appears the way the holes for the halogens have been drilled that they
have been put in place from through those holes but cant be sure.
I am pretty sure the main feed comes from the point of where I have
indicated the light switch. I tried a mobile phone for pics but not
giving me much help.

Some of the transformers have 2 cables attached to them (as indicated) and
one of them is a different type of transformer. To me it looks as if from
the main feed there are two seperate feeds which in turn supply 2 halogens
each. Hope I am making sense with this.

Looking for advice on how to move forward with this as I want to remove
the halogens and put a central light in their place. Should I try gently
tugging at the wiring?

http://i64.photobucket.com/albums/h1...ps2tua7yyq.jpg