- Reaction score
- 7,231
What size cable would he need to future proof for that?
This is down to the electrician who will be signing off the design for this job.
Discuss 5 core SWA 120mm pvc cable in the Commercial Electrical Advice area at ElectriciansForums.net
What size cable would he need to future proof for that?
Hi Buzz,Op should you not ne asking you spark that qestion.
Hello all
Thanks for your responses.
I believe that is 100 A total Split across three phases.
Client is talking to UK power networks about upgrading transformer to have 100 A from each phase.
What size cable would he need to future proof for that?
Thank you.
Thank you all for your responses, really appreciated. Regardless of the cable that will be finally specified I am still keen to know of the most cost effective electrical wholesalers from which to gain some prices any advice would be greatly appreciatedHe needs to decide what is happening with UKPN first before worrying about what size of cable to get.
But before that you need to know what size supply is actually required.
There's no point getting a bigger transformer installed if the current supply will do the job.
To get 100A over that distance I would hazard a guess at 2x 120mm in parallel, but that is just a guess.
Thank you all for your responses, really appreciated. Regardless of the cable that will be finally specified I am still keen to know of the most cost effective electrical wholesalers from which to gain some prices any advice would be greatly appreciated
No your right to be suspicious I am an electrical double agent that lurks on forums asking questions that only a non qualified lay person would ask?? I am putting the cable underground mate - only want to dig it and do it once!! got a big reel organised from a mate to help distribute the cable and don't like messing about that why i thought I would ask for help.Are we getting the full story here? Am I just being a bit suspicious?
The electrician will supply it - well he will put the client on his kew account as long as he pays as the cables not in his budget
got a big reel organised from a mate to help distribute the cable and don't like messing about that why i thought I would ask for help.
At least 3 tonnes of cable I reckonThe reality will hit home when a low loader arrives with the cable.
Borrowing a trailored reel dispenser will tow with my 100hp tractor......was going to bury in soil thought armoured was tough......now your worrying me....will ascertain installation specs when cable is purchased so I do not f**k it up - thanks for the heads upThis still doesn't make much sense to me, if its left to the client to arrange the supply of the cable then it really does suggest that the contractor is not used to doing this kind of work or using this size of cable.
What do you mean by a big reel? You're going to need to be careful how the cable is pulled in or laid as it is surprisingly easy to damage big armoured cable when doing this.
Cables can be damaged by pulling too hard on them and by incorrect attachment of the pulling rope, cable manufacturers will state the maximum pulling force and method of attaching the rope.
Are you aware that the cable needs to be laid in soft sand to avoid damage to the sheath, marker tape or tiles will need to be installed and sheath tests will need to be done to ensure that no damage has occurred to the sheath during laying the cable.
Borrowing a trailored reel dispenser will tow with my 100hp tractor......was going to bury in soil thought armoured was tough......now your worrying me....will ascertain installation specs when cable is purchased so I do not f**k it up - thanks for the heads up
With the greatest of respect Buzz - I am getting someone in to do live up the wire - I am a groundworks professional and installing a cable into a trench is not exactly testing i will be carefull and walk the trench to ensure there is nothing sharp in there - following davesparks advice i will now encase the cable in sand for belts and braces approach.I would go for a speaclist company for laying it , it amaze me when peaple say i will do it me self save the cost get some body in .
Have you got plenty of cable rollers to prevent drag.
Reply to 5 core SWA 120mm pvc cable in the Commercial Electrical Advice area at ElectriciansForums.net
We get it, advertisements are annoying!
Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.