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Discuss 110 metre submain for 4/5 bed new build? in the Electrical Forum area at ElectriciansForums.net

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BillyH

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What size swa would be needed for a 4/5 bed new build property submain burried direct in ground?
 
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Plonker 3

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Do the calculations for Volt drop, design current etc and you will have your cable size.
 
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BillyH

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table 4D4B HAS 3 columns r, x and z. Which column do i use?
 

telectrix

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clue....... bigger than 25mm.
 
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Octopus

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Astonishing.

Do you think you're ready for such jobs?
 

telectrix

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easier to use osg table 6D2.
 

telectrix

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and if there are 4/5 en-suite showers with 4/5 teenage daughters, then it's do the calcs. and X by 3.
 
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BillyH

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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
 
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Octopus

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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.
 

Amp David

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Have never yet specced any cable size going off how many bedrooms a house is to have.

80 amp cut out lets say 50mm
 

telectrix

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looking more at VD, i'd be considering 70mm.
 
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BillyH

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Maybe your post could have been worded in such a way to encourage people to help you.
Sorry,should've been a bit clearer. I had an answer phone message on the way home asking for this info so just wanted a quick answer so i could knock off.
 
That's a very vague design...

Max demand = 4/5 bedroom house?

Don't know if that's accepted under bs7671. Any clues on run load ect
 
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