What is the difference between earth resistance and earth electrode resistance?


#1

Only one of the terminals is evident in the earth resistance. In order to find the second terminal we should recourse to its definition:

Earth Resistance is the resistance existing between the electrically accessible part of a buried electrode and another point of the earth, which is far away.

The resistance of the electrode has the following components:

(A) the resistance of the metal and that of the connection to it.
(B) the contact resistance of the surrounding earth to the electrode.