Earthing-IEEE80-Final.xls

September 17, 2017 | Author: Abhijit Mandal | Category: Electrical Resistivity And Conductivity, Steel, Force, Materials, Physics
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earthing calc...

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DESIGN PROCEDURE BLOCK DIAGRAM

FIELD DATA A,r

CONDUCTOR SIZE ts,d,Io

TOUCH & STEP CRITERIA Etouch70, Estep70

INITIAL DESIGN D,n,LT,h

GRID RESISTANCE Rg,LT MODIFY DESIGN D,n,LT,LR

GRID CURRENT IG

YES GPR < Etouch

NO MESH & STEP VOLTAGES Em,Es,Km,Ks,Ki,Kii

NO Em
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