Joe, I can think of one I've worked with - dual ac input mains. It was a redundant powered device. And redundancy was maintained back to the mains connection. 2 power supplies, 1 mains per supply. Both mains inputs were identical branch circuits. It required redundant primary ground wires.
- Doug > Group, > > This is a general product safety question: > > In order to avoid test failures during a single fault condition where the > primary ground is removed, what design methods can be used to add a second > ground to the system so that a ground is still provided even during a > single fault condition of removing the primary ground? > > All responses are appreciated. ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: pstc_ad...@garretson.org Dave Heald davehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"
