Answer / avinash kumar

the charcoal and salt are added in the earthing pit to simply increase the conductivity or in otherwords to reduce the resistance of the earth..this will give reliable earthing...

Answer / kirubakaran

to reduce the resistivity of the earth

Answer / vanthni@yahoo.com

we that charcoal powder is a carbon content substance it act
as a semiconductor and salt is soluble in water , earth bit
after finishing time we put water required, now salt is
connected the earth electrode and char coal powder and
ground so we use them

Answer / ashok mishra

charcoal makes to carry the moisture content and salt to produce the HYDRONIUM ions so both are added alternate way in the earth pits
SDDIET barwala

Answer / k.prakashchandra

To increase the effective contact area between earth electrode and the earth .

Answer / bala.a

Hai
go and Ask your GM and DGM , THEY NO VERY WELL

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