Brian,
Basically, you need to conduct a reserve polarity test. Ramon Torres, P.E. Manager International EMC & NEBS Services Underwriters Laboratories Inc. 2600 N.W. Lake Road Camas, WA 98607-8542, USA (P) 360-817-5544 (F) 360-817-6034 Email: [email protected] UL - Working for a Safer World "Brian O'Connell" <[email protected]> To: [email protected] Sent by: cc: owner-emc-pstc@majordom Subject: o.ieee.org 11/14/2002 02:23 PM Please respond to "Brian O'Connell" Good People of PSTC: Clause 1.4.5 of EN60950:2000 states "When testing equipment for d.c. only, the possible influence of polarity shall be taken into account." What test conditions can be infered from this sentence? R/S, Brian O'Connell Taiyo Yuden (USA), Inc. -- For more information about UL, its Marks, and its services for EMC, quality registrations and product certifications for global markets, please access our web sites at http://www.ul.com and http://www.ulc.ca, or contact your local sales representative. -- ********* Internet E-mail Confidentiality Disclaimer ********** This e-mail message may contain privileged or confidential information. If you are not the intended recipient, you may not disclose, use, disseminate, distribute, copy or rely upon this message or attachment in any way. If you received this e-mail message in error, please return by forwarding the message and its attachments to the sender. Underwriters Laboratories Inc. and its affiliates do not accept liability for any errors, omissions, corruption or virus in the contents of this message or any attachments that arise as a result of e-mail transmission. ***************************************************************** ------------------------------------------- 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"

