Steve, as I'm sure you understand, there's a good chance their 480 volt is Three Phase Three Wire UNGROUNDED Delta which has no reference nor any voltage with respect to mother earth ground so in theory you can stand barefoot on wet ground and grab any one leg and NOT be shocked. Of course due to inductive and capacitive coupling there can be voltage present relative to ground and could give you a tingle but its extreme lowwwwwwwwwww energy insufficient to pump 30 milliamps through your heart in theory at least IM STILL NOT TRYING IT LOL Today much 480 three phase is actually 480 Y 277 Volt Three Phase Four Wire GROUNDED NEUTRAL.
In the case of a non earth grounded portable genset (as OSHA and NEC recommends) its the same thing, with no bond to earth none of the wires to the tools have voltage relative to earth so you dont get shocked if you touch one UNLIKE if you drove a ground rod at the genny and bonded it to Neutral then the hot wires ARE 120 VAC ABOVE GROUND AND CAN KILL YOU IF TOUCHED.
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Today's Featured Article - Sunday Drives - by Cowboy. Summer was finally upon us here in Northern Maine. We have two types of industry up here, one being "Forestry" (Wood Products) and the other "Farming" (Potatoes). There is no shortage of farm tractors and equipment around here! I have been restoring old Farm Tractors for the past 6 years, and have found it easier and less expensive to hit all the auctions and purchase whole tractors for parts needed. My wife who works at a local school, and only has weekends and summers off, while on t
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