Touch Potential
Touch Potential
(OP)
Guys,
What is your suggestion for decreasing the touch potential on the pump room (lower right)?
I have 4 ground rods (one in each corner of the the room) and it still shows a high touch potential.
I have added lots of copper and rods on other parts of the grid and adding more, looks a little bit out of budget and questionable.
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RE: Touch Potential
Made sure rebar, underground metallic structure and concrete resistivity are represented properly in the grounding model.
Usually, the result output of programs for the area covered with concrete & rebar result in a quasi_equipotential zone
RE: Touch Potential
After talking with CDEGS, I just modeled rebars (not concrete) and it solved the problem.
An investment in knowledge pays the best interest (Benjamin Franklin).
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RE: Touch Potential
Therefore, the allowable step and touch potentials for bother surface are very different and should be checked accordingly. Because the quasi-equipotential area as a result of founding the rebar should not be expected problem in this his matter.
Will be the responsibility of the engineer to properly calculate that and prepare a safety assessment for this installation