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Touch Voltage |
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Another of the paths spanning the greatest distance through the body of a cow is
from mouth to rear hooves. The mouth, because it is moist, can make a very good
electrical contact, presenting much smaller resistance to the flow of electric current
than the skin or the hooves. |
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Waterers often have grounding electrodes with related spreading gradients
[Spreading Gd]
in the earth.
As a result, the voltage that a cow may experience between its mouth and rear hooves at a
grounded waterer can be a concern. This is touch voltage: the stray voltage that
a cow will experience by touching a metallic structure with its mouth while its
feet are in contact with the earth. Similar situations may exist at water cups
in stanchion barns, metal feed bunks, etc. |
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