Earthing - IEEE80-final

DESIGN PROCEDURE BLOCK DIAGRAM FIELD DATA A, CONDUCTOR SIZE ts,d,Io TOUCH & STEP CRITERIA Etouch70, Estep70 INITIAL

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Citation preview

DESIGN PROCEDURE BLOCK DIAGRAM

FIELD DATA A,

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