Terminating 50mm solid conductor

[davesparks]

I have a job coming up the week after next where I have to terminate a 50mm solid core incomer into a Schneider standard 125A single phase main switch in an acti 9 board.

The plan I have come up with is to get the little adaptors Schneider make to allow a lugged connection to be made to the main switch, this bit I'm happy with.
But then all I can think of to actually fit the lug to the conductor is to find the closest matching lug and sweat it on.
Whilst I am capable of doing this I would appreciate any suggestions that don't involve hot works permits, fire alarm isolation and the perceived risk of setting fire to an old, well known and listed west end theatre!

 

[PEG]

Like these:
Shear Bolt Connectors - SWA

Though why they appear to be available in aluminium only, I don't know. (Says they're suitable for copper conductors.)

They look like a way round the problem,probably quite expensive...BEFORE they tell you there only in bags of ten!

 

[GEOFF S]

They look like a way round the problem,probably quite expensive...BEFORE they tell you there only in bags of ten!

Hi

Im not so sure they are, are they suitable for class 1 Cu cable, i don't think they are, solid Al yes, not solid Cu. Crimping is the best way, leaves very little in the way of air gaps. Use a Din compression lug and tool, or tubular lug with good indent tool. Klauke do both, also with tubular they have two variations L and R, R having a very high copper content.If you are concerned, RS do temp stickers, wrap around at termination, pretty acurate.

Cheers

 

[HandySparks]

Hi

Im not so sure they are, are they suitable for class 1 Cu cable, i don't think they are, solid Al yes, not solid Cu.

Quote off the SWA web page:
"Suitable for both copper or aluminium - stranded or solid"

 

[GEOFF S]

Quote off the SWA web page:
"Suitable for both copper or aluminium - stranded or solid"

Hi

Yes it seems to suggest they are okay, the other issue is size, they are quite bulky. A good crimp will be fine in my opinion.

Cheers

 

[benji]

pyrotenax used to do mechanical compression lugs

 

[davesparks]

Hi

Yes it seems to suggest they are okay, the other issue is size, they are quite bulky. A good crimp will be fine in my opinion.

Cheers

I agree that crimping would be the best option, but unfortunately for just two connections it is proving to be a very expensive exercise.
Especially considering that this whole job is a remedial from a highly suspicious EICR, and I don't really agree that it needs doing in the first place.

 

[GEOFF S]

I agree that crimping would be the best option, but unfortunately for just two connections it is proving to be a very expensive exercise.
Especially considering that this whole job is a remedial from a highly suspicious EICR, and I don't really agree that it needs doing in the first place.

Hi Dave

Do you not know anyone with a good indent crimper, the lugs are cheap enough, prysmian/biccon do a BT range which are good. Being a solid conductor A BT35 might fit failing that a BT50.

Cheers

 

[davesparks]

Hi Dave

Do you not know anyone with a good indent crimper, the lugs are cheap enough, prysmian/biccon do a BT range which are good. Being a solid conductor A BT35 might fit failing that a BT50.

I've got a reasonable indent crimper somewhere, if standard sized dies are suitable? I have assumed it would need to be special sized ones?

 

[GEOFF S]

Hi Dave

Just make sure you get some good quality lugs, Klauke or Biccon.

Cheers