More on this topic. The basic question is, ³what is the prupose of hipot testing?²
The context is a 28 Vdc brush motor that needs some caps to filter brush noise. Looking at some quell/eeseal chip caps on an insertable template that fits in the connector shell. I contend that could be inserted after hipot testing, so that the insert caps don¹t have to be rated to 1000 volts. The 1000 volt rating limits the selection of available caps. As I understand it, hipot testing ensures safety by verifying sufficient separation between different conductors. Why would it be necessary to apply a hipot test to a connector insert? Thank you, Ken Javor Phone: (256) 650-5261 From: Ken Javor <[email protected]> Date: Fri, 10 Aug 2018 15:13:23 -0500 To: "[email protected]" <[email protected]>, <[email protected]> Conversation: [PSES] X & Y Cap rating due to hipot test Subject: Re: [PSES] X & Y Cap rating due to hipot test Thank you, Ken Javor Phone: (256) 650-5261 From: Doug Powell <[email protected]> Reply-To: Doug Powell <[email protected]> Date: Fri, 10 Aug 2018 13:41:40 -0600 To: <[email protected]> Subject: Re: [PSES] X & Y Cap rating due to hipot test Ken, Yes and No, the line to line "X" caps will not see hipot potentials since you should tie lines and neutral together during the test. Line to earth "Y² caps will see the entire voltage during the test. This assumes of course you have manually closed any circuit breakers, contractors or switches that may otherwise isolate the equipment internals. All the best, Doug -- Douglas E Powell [email protected] https://www.linkedin.com/in/dougp01 Sent from my Android on the Verizon 4G LTE Network From: [email protected] Sent: August 10, 2018 12:44 PM To: [email protected] Reply-to: [email protected] Subject: [PSES] X & Y Cap rating due to hipot test Does a 1000 V insulation resistance test requirement force line-connected caps to the high pot potential? Thank you, Ken Javor Phone: (256) 650-5261 <tel:(256)6505261> - ---------------------------------------------------------------- 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.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) <http://www.ieee-pses.org/list.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]> - ---------------------------------------------------------------- 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.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) <http://www.ieee-pses.org/list.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]> - ---------------------------------------------------------------- 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.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) 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]>
