This is the firs I¹ve ever heard of grounding a BCI injection clamp, and I can¹t think of a reason why, or even how, given they¹re painted. If I were instructed to ground it, I suppose I would insert a bulkhead mount barrel feedthrough adapter at the clamp coax connector, and use shim stock from that barrel feedthrough to the ground plane. But I don¹t know why.
Having said that, the 6100-4-6 method is based on CDNs, not inductive clamps, which are sort of a last resort, if a CDN isn¹t available. A CDN does in fact need a bond to ground, because a CDN injects capacitively with a 150 ohm output impedance, and the injected signal is with respect to the ground plane. So the CDN injects in shunt with each pin, whereas the BCI clamp infects inductively in series with the bulk cable. I have to leave it to others to explain why a clamp would be grounded. I am as curious about that as is David. Ken Javor Phone: (256) 650-5261 From: David <[email protected]> Reply-To: David <[email protected]> Date: Thu, 10 Nov 2016 00:14:06 +0000 To: <[email protected]> Subject: [PSES] Bulk Current Injection All, I¹m trying to learn more about Bulk current injection. I¹ve read Javor¹s Field to Wire Coupling papers, as well as -4-6, ISO 11452-4, SAE J1113-4, and CS114. I¹m primarily interested in grounding, and the differences between -4-6 and the rest. -4-6 requires that the injection probe or clamp is grounded with a short ground strap. MIL STD, ISO, and SAE don¹t do so. I would assume it¹s due to the difference between a test simulating commercial AC powered equipment versus vehicle mounted equipment. I¹d like a more thorough understanding of why. Also, if I do not ground the BCI probe during -4-6, say during an in situ test on an elevated cable, what would the result be? An under test, over test, or unknown? For large equipment would it make sense to tie it to the chassis? David - ---------------------------------------------------------------- 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]>
