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I thought 100A fused, are you sure. I thought this was what they were designed to do, or does the sub main cause the issue?
100% REC isolator is not fused!
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Discuss Terminating SWA with Wylex REC Supply Isolators in the UK Electrical Forum area at ElectriciansForums.net
I thought 100A fused, are you sure. I thought this was what they were designed to do, or does the sub main cause the issue?
100% REC isolator is not fused!
You do not want your calculations running to 100a per unit, drop your shower down to 8kw job and oven to 7kw etc etc. you need to be distributing 60a per unit with 200a per phase 3ph incomer.
if you exceed this the DNO will want you to sell your soul for the cost of the upgrade for your mains. People like tony and E54 will tell you of the frightening costs of big supplies.
It's not that a Ryefield is not ideal for the job it's the fact that you will need 12 sets of tails with 12 main switches all crammed into the trunking with 12 16mm SWA's. with a big DB like this then you still have the SWA glanded onto the trunking but the DB does the fusing, switching and doesn't need all of the tails. You can specify them with a lockable door too.
Btw once you apply cable calcs you may find that you may need 25mm SWA, and on 100a you would with out doubt need it.
Sorry to say this matey, but with so many questions "up in the air", it does sound like you need the input of somebody with more experience, or you could find yourself in the poop big time.
Sparky got whisked away for surprise holiday, he'll have to have final sign off as its his name on the certificate, but want to get plan ready to discuss on his return as need to crack on.
Reply to Terminating SWA with Wylex REC Supply Isolators in the UK Electrical Forum area at ElectriciansForums.net
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