Every IEC and UL standard I have worked with do not set a leakage limit for dielectric testing for the type testing as they specify insulation breakdown or uncontrolled current flow as failure criteria.
For production line testing UL6500/UL60065 specify a pass/fail leakage limit in appendix R/X for the respective standards. The limit is determined by connecting a 120Kohm resistor across the tester and the leakage current trip limit must be set to trip within 0.5 seconds. So you may want to check the standard you are working with to see if there are any production line leakage limits............... From: [email protected] [mailto:[email protected]] Sent: Wednesday, August 06, 2003 2:08 PM To: FastWave Cc: [email protected] Subject: RE: Hipot question > 4) FYI - occasionally I hear requests from those new to hipot testing > for more powerful hipot testers because "they need more current capacity from their tester" = they don't need a bigger hipot tester, they need to be testing with DC. Bill, Some product safety standards require or recommend a 500VA hipot tester. John Radomski Principal Engineer Schneider Electric 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] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc 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] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
