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If there was a fault it could blow the DNO fuse even if you put 80A or 63A fuses in the SFI.But if there is a fault then either the main fuse or the isolator fuse could blow..
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If there was a fault it could blow the DNO fuse even if you put 80A or 63A fuses in the SFI.But if there is a fault then either the main fuse or the isolator fuse could blow..
You have every right to be confused, as the regulations on it are a bit convoluted!Now I'm confused.
So you are saying that a fused isolator is required, due to the distance from the meter to the first CU.
What's the point in putting in a 100A fuse. We have always recommended a fuse lower than the main fuse size?
I don't believe you will be proven wrong, I've looked and looked and looked! The only two options I see I have is either terminal blocks in the DB (70mm in 25mm out) or the preferred option, reducing pins.I’m willing to be proven wrong but I think you’ll struggle to find an MCB that will accommodate 70mm and fits in a standard CU or DB. Most MCB’s I’ve seen only accommodate up to 25mm.
As for the run to the caravan point, yes you can run a 2-core SWA but you still need to earth the armour at the supply end but isolating it from the enclosure at the hookup.
If there was a fault it could blow the DNO fuse even if you put 80A or 63A fuses in the SFI.
They are, i have looked to buying ones on the larger side to help with the cable size. Is there an easier/better alternative?Are these single phase boards, 70mm? good luck.
How about using a branch joint to bring off some 25mm SWA that connected to your kiosk:They are, i have looked to buying ones on the larger side to help with the cable size. Is there an easier/better alternative?
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