B

BillyH

What size swa would be needed for a 4/5 bed new build property submain burried direct in ground?
 
and if there are 4/5 en-suite showers with 4/5 teenage daughters, then it's do the calcs. and X by 3.
 
Astonishing.

Do you think you're ready for such jobs?

Been a long day . Out the house a 5.30 this morning and just got in.Don,t really need "help" like this. I know i should be able to do this in my sleep ( kinda feels like i am) but a little guidance might be more constructive
 
Been a long day . Out the house a 5.30 this morning and just got in.Don,t really need "help" like this. I know i should be able to do this in my sleep ( kinda feels like i am) but a little guidance might be more constructive

Maybe your post could have been worded in such a way to encourage people to help you.
 
Sorry for the vague info, i will explain more.The supply is for a 4 or maybe a 5 bed house (100A). Allowing for a 5% vd the cable size would be 50mm.

0.94x110x100/1000 = 10.34

Am i close
 
close, but VD for lighting is 3%, so i'd err on the side of caution. better to install a slightly oversized cable than have to dig out and replace an undersised one.

i got 70mm based on 80A demand.

5.6V drop.
 
I just got an email from the guy. This is the only info i have. I know nothing about whats on site whatsoever so can't comment further .It reads as follows;


I need to put in 5 supplies. One each for the 3 units - these will all be say 3 bed, and no electric heating or showers. They each have a cable run of 75 metres.
One run needs to go to the house - this will be about 110metres, and it will be a 4/5bed house.
The other one needs to go to the sewage treatment plant, which is again about 120 metres, but only needs to run a 200 Watt pump.
Everything single phase.

Why would this be preferable to getting the board in to give new supplies?
 
I just got an email from the guy. This is the only info i have. I know nothing about whats on site whatsoever so can't comment further .It reads as follows;


I need to put in 5 supplies. One each for the 3 units - these will all be say 3 bed, and no electric heating or showers. They each have a cable run of 75 metres.
One run needs to go to the house - this will be about 110metres, and it will be a 4/5bed house.
The other one needs to go to the sewage treatment plant, which is again about 120 metres, but only needs to run a 200 Watt pump.
Everything single phase.

Why would this be preferable to getting the board in to give new supplies?

you need a site meeting mate and deisgn it correctly, also submains are cheaper than paying the dno
 

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110 metre submain for 4/5 bed new build?
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BillyH,
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