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4.3 How to Test for Good Ground
In order to test ground resistance, a Ground Resistance Tester must be used. A typical Ground Resistance
Meter Kit contains a meter, two or three wire leads, and two ground rods. Instructions are supplied for
either a two-point or three-point
ground test.
Figure
0
4.1 – Two-Point Ground Connection Test
To power the I3N unit, V+ and V- wires are directly wired to one of the terminal strips.
Earth Ground is the auxiliary spade at the bottom.
METAL WATER PIPE OR
OTHER GOOD GROUND
GROUND ROD
GROUND
DISCONNECTED
FROM SERVICE
GROUND RESISTANCE METER
