Resistance of current electrode
Resistance of voltage electrode
Value of additional uncertainty
caused by resistance of the elec-
trodes
Repeat the measurements (points 3, 7, 8) shifting the
voltage electrode several metres: the electrode should be
shifted farther and closer to the earth electrode being
tested. If R
E
measurement results differ from one another
by more than 3%, the distance of the current electrode
from the earth electrode being tested should be consider-
ably increased and the measurements should be repeat-
ed.
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