Don¹t know what commercial products are available, but a traditional approach to this problem is for the cable to use two coaxial shields with insulation between them, with one shield terminated at one end, and the other, at the opposite end. Ken Javor Phone: (256) 650-5261
From: "Ian White (UK)" <[email protected]> Date: Thu, 24 May 2012 14:45:40 +0100 To: "IEEE Forum ([email protected])" <[email protected]> Conversation: Design problem Subject: Design problem It is well documented good EMC practise that all screens should be terminated with a 360 degree termination. If you are using D type shells this is quite easy. However we have a product which is under development which uses an off the shelf round aluminium case which has an internal ID of 80mm and has the following features : 1) It has 2 conduit entries so no room for any D Types. 2) There will be 3 screened cables terminated in a small termination space. The problems are : 3) We do not wish to put screwed clamps on the cable termination pcb as a heavy handed customer could break the pcb. This means P clips are out. 4) Even if we put a clamping arrangement in for the screen and hence bond the screen to chassis, we need to capacitive de-couple the product screen end to stop ground loops. We have already looked a EMC glands but the need for capacitive de-coupling rules this solution out. Question. Do you know of any products on the markets that may solve this design problem. ? Thanks for your help Ian - ---------------------------------------------------------------- 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://listserv.ieee.org/request/user-guide.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://listserv.ieee.org/request/user-guide.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]>
