Hello all.
This is my first (probably of many) question so please be gentle.
I have been trying to get an answer to this but seems it is not as straight forward as it looks so i am hoping you wise souls can give me a clear concensus (or just a majority) view.
We have a large 3ph supply to our farm which is metered as it enters the property with the boards fuses and an RCD on our boundary.
It runs U/G 300m to a barn and into a distribution board all certified and proper for using in the building, the cable was sized to minimise voltage drop at huge cost!!!
We are now putting up a dwelling about 150m from the barn. I have run a cable from one leg of the supply in the barn U/G to the new dwelling using oversize 2 core SWA to minimise voltage drop. In the dwelling it is then resin joined to an SWA of 25mm and I have run this through a cold roof to the C/U 5m away. The earth is TT as there is no suppliers earth so the barn is TT and it seemed pointless running a cable from there.
Now the supply from the suppliers meter is fused and RCD protected but 450m away, this covers the requirement to protect within 3m that seems to crop up so is my supply in the house ok from this point of view (there is no meter in the house )or would you people consider it a new supply in the house and requiring protection as it enters?
Thanks in advance.
Empin
This is my first (probably of many) question so please be gentle.
I have been trying to get an answer to this but seems it is not as straight forward as it looks so i am hoping you wise souls can give me a clear concensus (or just a majority) view.
We have a large 3ph supply to our farm which is metered as it enters the property with the boards fuses and an RCD on our boundary.
It runs U/G 300m to a barn and into a distribution board all certified and proper for using in the building, the cable was sized to minimise voltage drop at huge cost!!!
We are now putting up a dwelling about 150m from the barn. I have run a cable from one leg of the supply in the barn U/G to the new dwelling using oversize 2 core SWA to minimise voltage drop. In the dwelling it is then resin joined to an SWA of 25mm and I have run this through a cold roof to the C/U 5m away. The earth is TT as there is no suppliers earth so the barn is TT and it seemed pointless running a cable from there.
Now the supply from the suppliers meter is fused and RCD protected but 450m away, this covers the requirement to protect within 3m that seems to crop up so is my supply in the house ok from this point of view (there is no meter in the house )or would you people consider it a new supply in the house and requiring protection as it enters?
Thanks in advance.
Empin