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#1
January 17th 04, 04:46 AM
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"Ron Natalie" wrote in message ... "Peter Gottlieb" wrote in message . net... I've worked on a lot of 48 Volt systems and it is more like an unpleasant tingle than a bad shock. It is until ringing voltage is applied :-) Ah well the systems I worked on had rather substantial batteries and the real hazard was shorting something out rather than touching it. Some people hated the feeling but unless I was sweaty I would just touch things to see if they were live. The 20 Hz ring was interesting because you can quite distinctly feel each half cycle go by. The original systems I messed with used motor-generators to make the 90 Volt 20 Hz and every so often when I am near an old elevator the smell reminds me of those old dynamotors. 
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