In other words you are suggestion to cure the disease itself, and not just the symptom.
Bob Wilson TIR Systems Ltd. Vancouver. -----Original Message----- From: JP Hare [mailto:[email protected]] Sent: June 13, 2002 4:50 AM To: Anchondo, Dan; [email protected] Subject: RE: Shielded DC Power Cable Vendors Hi Dan, I saw your previous post and was wondering if it would receive any attention. As I recall, you are trying to shield a 200A DC power cord. I am assuming you want a shielded cable because of radiated EMI problems. Usually shielded power cords are not theoretically sound solutions for EMI reduction. Do you control BOTH ends of this cable? I imagine you control the EUT end, but allow the other end to be connected to the standard CO power bus. If this is true, then you are essentially extending the noisy cable to the bus bar and into the CO's power system. The RBOC may have a problem with this. If you have considered this and you still believe that a shielding strategy is acceptable for you, you may want to make your own shield from flat braided ground strap. I've seen certain types that "open" up into a tube. You may be able to fit this around your cable assembly. Obviously the best solution is to filter the energy. But I realize that finding and implementing a 200A filter could be a bit difficult! A closer look at the DC-DC converters may be necessary... Good luck, Paul Hare [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]]On Behalf Of Anchondo, Dan Sent: Wednesday, June 12, 2002 8:44 PM To: [email protected] Subject: Shielded DC Power Cable Vendors All Looking for vendor that provides shielded DC power cables. Regards Dan Anchondo ------------------------------------------- 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" ------------------------------------------- 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"
