--- MPC 20 & 50 TESTER - M-981136 (vers. BD) --- Page
21
6.- TESTING GROUND RESISTANCE
The main advantage of testing ground resistance using high currents is
that as well as being measured, the ground is also being tested to see if it is
capable of accepting such a current. By doing it this way, one avoids errors of
measurement from low currents due to, for example, surface moisture or a
highly corroded cable or one with defective lining.
CONNECTION DIAGRAM
TESTED
VOLTAGE
TESTING
ROD
TESTING GROUND RESISTANCE
GROUND TO
BE TESTED
AUXILIARY
GROUND
TEST INTENSITY lp
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