On 24 June 2014 13:01, Richard R. Pope wrote: > 50 volts is considered to be the cut off point of where voltages > are considered to be dangerous. For some values of "considered". > Up to 24 volts should be completely safe > even if you are wet. You might feel it but unless you had a break in the > skin that allowed the current to get inside your body you would be safe. > It is that area between 24 volts and 75 volts that poses a real hazard > I know somebody who, in unusual and extreme circumstances (flounder fishing), with a 12V system experienced complete hand and arm muscle lockup so that they could not release their grip. People have died on 12V and in his extreme case he could have too. as most people don't consider that range to be dangerous to a person but > under the right conditions such as being wet this voltage level can kill. > So make that "12V to ... under the right conditions. " Very extreme on 12V. Not so much on 24V. My personal experience is that on a humid day 48V contact across the hand surface from wiring tags in a telephone exchange distribution frame can be extremely annoying. Russell --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .