Shed CU install for registration assessment, catenary wire question

[davesparks]

I think the 3m is a "guide" as the vast majority of sheds are not that tall.

So start the catenary at a height of over 3m and slope it down to the highest point possible on the shed. When installing catenary wires, using tensioners are a must

I've not installed many catenaries, but I never used tensioners on the few I have done. I'm not sure I'd say they are a must really.
You've got to get a sensible amount of the slack out of the wire before attaching the tensioner anyway as they don't have that much travel in them, and by that point you might as well just fit it with the right amount of sag from the outset.

 

[HandySparks]

I'm thinking I might just chase the concrete now. I've got a 230mm grinder that hasn't yet seen much use. I'm just worried I won't be able to get down to the required depth. I will be re-filling the chase with concrete though.

If it's just a short run under a concrete path, I'd drop in a piece of plastic conduit, waste pipe or similar. Concrete over, then push the swa through later. Gives you options for changes or additions and ensures that there's no damage to the cable sheath while concreting.

 

[ZEDEZ]

For your assessment?

https://www.tlc-direct.co.uk/Products/FXSTRAIN.html

Go on, spend the £2.25 + VAT and do it properly.

Thanks Murdoch.