Ages ago I had a product that had a couple of socketed relays in the primary. What we did was create special shorted relays that were used in place of the regular relays during hipot. You may consider doing this if your relays are socketed.
Regards, +=================================================================+ |Ronald R. Wellman |Voice : 408-345-8229 | |Agilent Technologies |FAX : 408-553-2412 | |5301 Stevens Creek Blvd., |E-Mail: [email protected]| |Mailstop 54L-BB |WWW : http://www.agilent.com | |Santa Clara, California 95052 USA| | +=================================================================+ -----Original Message----- From: [email protected] [mailto:[email protected]] Sent: Tuesday, May 14, 2002 8:20 PM To: EMC/Safety List Server Subject: Hypot Testing Question I have some products which fall under UL61010A-1 and have several relays and contactors in the primary circuits. During the hypot test it is my understanding that all relays and contactors in primary need to be in the "on" state to allow the test voltage to fully circulate within the primary circuit, thereby allowing a valid hypot test. It is taking a good deal of time to properly set the unit up to do the test, and then remove all of the jumpers before the unit ships. Does anyone have any ideas, recommendations or suggestions on ways to speed the process? Some units may have upwards of 7 contactors and relays. I am also looking for some way to combine the hypot test with a shorts test to verify that there are no shorts due to wiring errors from line to line (single and three phase products). Again, any suggestions or recommendations are welcome. Thanks in advance, Steve Brody [email protected] ------------------------------------------- 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" ------------------------------------------- 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"
