What is "stray capacitance" ? -----Original Message----- From: Rich Nute [mailto:[email protected]] Sent: Monday, July 08, 2002 3:58 PM To: Product Safety Technical Committee Subject: Re: TOUCH CURRENT LIMIT
UL reasoned that if 0.5 mA arises from both real and stray capacitance, then, for double-insulated (Class II) equipment, the current should be one-half of 0.5 mA because the standard requires the same insulation to be applied again (i.e., the second half of double insulation), thus halving the capacitance. Half of the capacitance results in half of the current, therefore 0.25 mA. ------------------------------------------- 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: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
