Hello all.
17th edition sparky here, but not been on site for the last 3/4 years (had a bit of an accident).
Just bought a house with a 16mm 3 core SWA, 15m long, clipped around the side of the house low level. This feeds the double garage.
It has it's own 100A fused isolator in a kitchen cupboard (behind the meter box) with a 63A HRC fuse in it. 25mm tails (16mm earth) come from a couple of DP connection blocks in the meter cupboard.
Garage end has a 12 way split load metal DB with 2x 63A RCD's and is only feeding a couple of sockets on a 16A radial and the lights on a 6A.
My question. Not being up to date now on the 18th, should that external SWA sub-main be protected by an RCD?
Reason I am asking is I want to have a car charger added to the garage and that has it's own internal RCD (They are fitted by a local company as part of the car purchase deal). The board in the garage would be re-arranged so that a 32A MCB would be after the main switch (not on the split load).
Thanks from a slightly broken old sparky
17th edition sparky here, but not been on site for the last 3/4 years (had a bit of an accident).
Just bought a house with a 16mm 3 core SWA, 15m long, clipped around the side of the house low level. This feeds the double garage.
It has it's own 100A fused isolator in a kitchen cupboard (behind the meter box) with a 63A HRC fuse in it. 25mm tails (16mm earth) come from a couple of DP connection blocks in the meter cupboard.
Garage end has a 12 way split load metal DB with 2x 63A RCD's and is only feeding a couple of sockets on a 16A radial and the lights on a 6A.
My question. Not being up to date now on the 18th, should that external SWA sub-main be protected by an RCD?
Reason I am asking is I want to have a car charger added to the garage and that has it's own internal RCD (They are fitted by a local company as part of the car purchase deal). The board in the garage would be re-arranged so that a 32A MCB would be after the main switch (not on the split load).
Thanks from a slightly broken old sparky
