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M

Morgan keith

Hi lads, bit of a random one. A friend has just bought a café and wants a few wall lights installed. There is already PVC trunking run high up, the whole way along one side of the café for the fire alarm stuff. So I thought running another one right next to/underneath it for the new lights is the best option- (I hate using trunking anywhere!). The lights his wife has bought are the copper looking industrial type that you usually see with the big exposed filament bulbs. I think that it'll look best dropping down to each fitting in 20mm galvanised conduit (from MT2 trunking high up). Not ideal but will look better than running trunking down. Problem is MT2 doesn't give you the depth to use bushes and lock nuts to join them together so have thought about putting a coupler on the end of the conduit with a PVC bush and butting it up to the trunking? or a small patress with blank plate under the trunking above each light point and running conduit into there. Any neater ideas? not ideal but he's on a tight budget and can't afford it to be all done in galv. Cheers!
 
You could use a single gang trunking / PVC conduit back box as a junction box for the trunking to conduit.

Falcon trunking do an adaptor designed to adapt the conduit entry on one of these boxes to trunking but it might be possible to use it direct.
[ElectriciansForums.net] Mixing MT2 and 20mm galvanised conduit
MK also make a PVC 20mm round to MT1 adaptor, but they are hard to get hold of without ordering and I am not sure how much use they would be
[ElectriciansForums.net] Mixing MT2 and 20mm galvanised conduit
 
How much more would it cost to do it all in galv?

The time saved with whatever fettling you have to do to join galv to bodgers trunking plus the saving in not having to buy earth cable will surely mean the difference isn't too much?
 
You could use a single gang trunking / PVC conduit back box as a junction box for the trunking to conduit.

Falcon trunking do an adaptor designed to adapt the conduit entry on one of these boxes to trunking but it might be possible to use it direct.
View attachment 26613
MK also make a PVC 20mm round to MT1 adaptor, but they are hard to get hold of without ordering and I am not sure how much use they would be
View attachment 26614


Thanks Richard looks like the sort of thing I'm after! Will look into it further. Failing that I think the trunking / conduit back box join might be the next tidiest answer
 
How much more would it cost to do it all in galv?

The time saved with whatever fettling you have to do to join galv to bodgers trunking plus the saving in not having to buy earth cable will surely mean the difference isn't too much?

Well not a lot difference material wise but with all the bends and angles we're probably talking 4 days instead of 4 hours
 
I'm not sure that running 2 x 2 trunking around the café is a better option than having a 1 gang surface box to adapt them to be honest

Who said anything about 2x2????

I just suggested you use bigger bodgers trunking than you originally mentioned. MT2 is only one of a range of sizes that bodgers carp comes in, 25x25 or 25x32 would give you the depth for a 20mm hole.

How are you joining the conduit to the wall light, or do they mount onto besa's?
 
There is already PVC trunking run high up, the whole way along one side of the café for the fire alarm stuff. So I thought running another one right next to/underneath it for the new lights is the best option-

running 230v along side fire alarm cables ?
 

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