Electricity Cable Connection

[HighlandHopeful]

Hello all, 

Just doing some forward planning - I am wanting to lay water pipe and electricity cable when our road is dug out, so that when Scottish Water and SSE arrive to make the connections they can do so and the pipe/cables are already buried as that will work better with our timings, not having to dig up the road again to lay pipes and cables. What I can't for the life of me figure out, is what type of electricity cable I need to buy to lay under the road towards the house. 

Sorry it's such a boring question, hoping there is a simple answer of what to buy 

Thanks!

Emily

[Dunc]

Just lay some duct with draw rope in it if you need to go ahead before you have the specifiications for the pipes/cables.

Water will have to be BLUE duct 110 external/90internal, minimum 750mm under ground. Marker tape in the trench ~200mm above this. Make sure you take lots of photos with tape measure to show depth as in my experience SW were fairly stringent in their track inspeciton.

Electricity will need to be black duct.

Make sure that there is appropriate separation between the ducts vertically and horizontally if they are in the same trench.

[HighlandHopeful]

  On 28/03/2025 at 11:07, Dunc said:

Just lay some duct with draw rope in it if you need to go ahead before you have the specifiications for the pipes/cables.

Water will have to be BLUE duct 110 external/90internal, minimum 750mm under ground. Marker tape in the trench ~200mm above this. Make sure you take lots of photos with tape measure to show depth as in my experience SW were fairly stringent in their track inspeciton.

Electricity will need to be black duct.

Make sure that there is appropriate separation between the ducts vertically and horizontally if they are in the same trench.

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Thanks that's helpful  when you say 'before you have the specifications for the cables' - who is it that will be giving me the spec for the cables. I think that's what I'm asking really. Is it up to SSE or is there a standard that I can buy? Thanks again.

[Dunc]

Anything up-stream of your meter will belong to SSE, as far as I know, so they should specify. Others here may have better advice.

[saveasteading]

  On 28/03/2025 at 13:15, Dunc said:

Others here may have better advice.

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Single or 3 phase? 

An electrician can calculate your need based on house size m2, then advise the cable to suit.

Ditto water by plumber. 

 

We put the cable and pipe in to the agreed meter position (and the kiosk) with no ducts, to avoid digging holes twice.

But you should be getting a proposal from SSE and your water company , and it will state some requirements.

[joth]

  On 28/03/2025 at 13:15, Dunc said:

Anything up-stream of your meter will belong to SSE, as far as I know, so they should specify. Others here may have better advice.

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This is the key question. Where is your meter going, relative to the new trench? Unless the meter is on the far side of the road (away from the house - very unusual if it's a public road) then this cable is specified and supplied by the DNO

 

 

Edited March 28 by joth