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Humans vs. Cows |
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In recent years, the definition of stray voltage has become blurred.
It is often used to discuss human health concerns and not just animals
that may come in contact with voltages between various surfaces/points.
Although humans can experience similar forms of stray
voltage (voltage gradients exist everywhere in our environment),
livestock have a higher likelihood of stray voltage exposure than
humans because they are confined and wear no clothing (e.g. boots, gloves, etc.),
and because of the physical differences between humans and cows. |
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Given the different physiology, the stride of a cow
is also different from that of a human. Humans use hands and
utensils to bring food to their mouths, avoiding a
direct mouth touch potential. Therefore, humans rarely experience stray
voltage at perceptible levels. |
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The term stray voltage, as it was originally used, refers to voltage phenomena
for dairy cows in their production environment resulting from the operation of
the farm and/or utility power system. Effects on humans should be excluded from
this definition because they confuse the issue and complicate
the resolution of real problems sometimes experienced by dairy farmers.
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