Fluke 1630-2 - Limited Warranty and Liability

Ground Resistance
AC Leakage Current
Standard Loop Resistance
Battery
R 1
R g
R g
Equivalent circuit diagram:
Ground resistance measurements principle:
R
2 .....R n
.....R n
R g
R 1 R 2 R 3
Load
Load
Grounding Wire
Insert only one of the wires
through the jaws
Load Current
Single-Phase Three-Wire
or Three-Phase Three-Wire
Circuit
Single-Phase
Two-Wire Circuit
Load
Load
Check the Clamp before
Ground Resistance measurements
Measurements