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Discuss options for workshop supply in the UK Electrical Forum area at ElectriciansForums.net

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just wondering what people would think would be the best way of doing this.

i have got to provide a supply up to a workshop in a garden (about 80 mtrs from the house). it will run underground all the way and then in the subfloor of the house that is currently being worked on all the way to the db.
 
As you haven't provided a design current it is easier to use In. This also means you are covered for volt drop right up to the point of overload of the distribution circuit. 32A you could go 10mm, if you go 16mm, you can do 50A. Using In instead of Ib and youve got a VD just under 5% for both.

Check Ze. You have TNS so could be up to 0.8 ohms already....

C40 60890 max Zs is 0.54

R1+R2 for the 10mm is 0.35

R1+R2 for the 16mm is 0.23
 

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