Just bouncing something off people here..
Got a job on, customer currently has a single phase 230v 16Amp commando socket he wants changed for a 32A ( Seemingly has a few machines in mind with a larger than 16A draw but below the full 32 that he's considering buying in...hasn't decided which yet tho...)
Its currently supplied via 1.5mm2 6491X singles in plastic conduit (checked the book 4D1A, Ref method B and its good for 17.5Amps) run is sub 10 metres, but a pain in the backside to alter (heavy immovable stuff in the way for starters)
conduit is 20mm, so no way I'm going to pull 4mm2 or 6mm2 singles down there...and because of obstructions..I can't change out the conduit for bigger nor run another piece of conduit..
Socket has to go where its going.
So my only option it seems....pull in another 1.5mm2 line and neutral and parallel them (for some unknown reason the CPC is 2.5mm2 (who knows why...I didn't install it whenever it was done)...which should give me 35Amps so more than enough to cover matters...be a royal pain to pull it in more than likely...but with some extensive blue language...it should be doable. I don't especially like the idea...but I can't see any other way around the problem....
Anyone got anything to add that I've missed here?
Got a job on, customer currently has a single phase 230v 16Amp commando socket he wants changed for a 32A ( Seemingly has a few machines in mind with a larger than 16A draw but below the full 32 that he's considering buying in...hasn't decided which yet tho...)
Its currently supplied via 1.5mm2 6491X singles in plastic conduit (checked the book 4D1A, Ref method B and its good for 17.5Amps) run is sub 10 metres, but a pain in the backside to alter (heavy immovable stuff in the way for starters)
conduit is 20mm, so no way I'm going to pull 4mm2 or 6mm2 singles down there...and because of obstructions..I can't change out the conduit for bigger nor run another piece of conduit..
Socket has to go where its going.
So my only option it seems....pull in another 1.5mm2 line and neutral and parallel them (for some unknown reason the CPC is 2.5mm2 (who knows why...I didn't install it whenever it was done)...which should give me 35Amps so more than enough to cover matters...be a royal pain to pull it in more than likely...but with some extensive blue language...it should be doable. I don't especially like the idea...but I can't see any other way around the problem....
Anyone got anything to add that I've missed here?