uksparks
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- Reaction score
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Hi,
I have just been to a job today to provide power to an outbuilding, 75 meters down the garden.
The supply is PME, I plan on splitting the tails into a henley block and then into a switched fuse, then 16mm SWA from there all the way down the garden, at 600mm under the lawn.
The building is a 30ft by 20ft concrete arrangement, sitting on a whopping great big concrete slab. My issue is, there's a steel frame inside, its just bolted into the floor though. Am I correct in thinking this is classed as structural steel or would it need to be more buried in the ground?
If it is classed as structural, I understand why I cannot export PME, so would use 2 core SWA, earth the armoring at the house end, and stick a rod in next to the outbuilding and ground any exposed metal.
I guess I could check to see what the IR is on the steel to a known source, but my wander lead will not stretch that far! Off the top of my head its if its less than 0.02M ohms it needs bonding correct?
Please can I have some thoughts on if its best to make it a TT? I have done quite a few sheds and the like, but never done one that's had steel all round it, always normally just wood!
Thanks
I have just been to a job today to provide power to an outbuilding, 75 meters down the garden.
The supply is PME, I plan on splitting the tails into a henley block and then into a switched fuse, then 16mm SWA from there all the way down the garden, at 600mm under the lawn.
The building is a 30ft by 20ft concrete arrangement, sitting on a whopping great big concrete slab. My issue is, there's a steel frame inside, its just bolted into the floor though. Am I correct in thinking this is classed as structural steel or would it need to be more buried in the ground?
If it is classed as structural, I understand why I cannot export PME, so would use 2 core SWA, earth the armoring at the house end, and stick a rod in next to the outbuilding and ground any exposed metal.
I guess I could check to see what the IR is on the steel to a known source, but my wander lead will not stretch that far! Off the top of my head its if its less than 0.02M ohms it needs bonding correct?
Please can I have some thoughts on if its best to make it a TT? I have done quite a few sheds and the like, but never done one that's had steel all round it, always normally just wood!
Thanks