EE23: SIZE OF EARTHING CONDUCTOR

Bookmark

No account yet? Register

Area of Phase Conductor S (mm2)Area of Earthing conductor (mm2) When It is Same Material as Phase ConductorArea of Earthing conductor (mm2) When It is Not Same Material as Phase Conductor
S < 16 mm2SSX(k1/k2)
16 mm2<S< 35 mm216 mm216X(k1/k2)
S > 35 mm2S/2SX(k1/2k2)

*K1 is value of Phase conductor,k2 is value of earthing conductor

*Value of K for GI=80, Alu=126,Cu=205 for 1 Sec

Spread the love