KPS TLP100 Manual De Instrucciones página 28

Earth Resistance Clamp Meter
7. Application of gas station
For gas station it is necessary that testing earth
resistance to prevent static electricity. Apply earth
electrode of oil trough to be supplementary electrode
to test earth resistance of gas station. That the tested
result is maybe sum for earth resistance of gas station
and earth resistance of oil trough in series is noticeable.
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