Jim Burke's article is excellent but there is one deceptive phrase that should be qualified. He says the resistance of the human body is 500 ohms. This is only true if one neglects the skin. Dry skin's resistance is very much higher. This leads many to believe that a 120 volt shock the receive from an appliance is annoying but not dangerous. The same shock received while one is standing in salt water and has wet hands would be fatal.
How one uses the term stray voltage is not determined by me, but I think induced currents and resulting voltage drops should be included.
Bob Bob
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