I've been known to ask for an isolation transformer for test gear "floated" by interrupting safety ground.
Cortland Richmond ----- Original Message ----- From: Bill Owsley To: [email protected];[email protected] Sent: 3/11/2009 9:54:28 PM Subject: Re: Ungrounded (was RE: scope probe gnd) Floating a scope is not just lifting the ground since the neutral (in the USA) goes back to ground. Floating for me is using an isolation transformer - there is no galvanic connection to the mains. As you've mentioned - training as in education. And yes, there's some capacitive coupling that could make touching some voltages somewhat uncomfortable but your back pockets won't explode in flames. - Bill Indecision may or may not be the problem. - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]>
