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PosiGround Ground Clamp Operation:
Good Situation #1
The distance between Clamp 1 and Clamp 2 is large enough to verify that
there is good underground conductivity between the ground rod and the
material being pumped. This ensures that there cannot be a significant
voltage created on the truck by the moving pumped material. An excessive
voltage on the truck can result in a spark between the truck and ground,
which could ignite a fire or explosion.
The conductivity drains off the voltage being developed on the truck by
the moving material.
Good Situation #2
672-H Manual
Page 9
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