One thing to watch for when applying ferrites is the weight. I had a client who put a ferrite on an AC power wire inside an ITE product tabletop enclosure. The ferrite caused the connector to come unplugged and resulted in exposed AC power wires freely moving about in the unit. Clearly, an EMC fix causing a safety issue.
Tie wrap and shrink wrap can sometimes be used to solve the movement problem. Craig Burow Senior Compliance Manager Percept Technology Labs, Inc. Product Test and Compliance Experts 4735 Walnut Street #E Boulder CO 80301 303-444-7480 ext 102 phone 303-444-1565 fax cra...@percept.com http://www.percept.com/ -----Original Message----- From: owner-emc-p...@majordomo.ieee.org [mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Gary McInturff Sent: Friday, November 22, 2002 1:24 PM To: brian_ku...@leco.com; emc-p...@majordomo.ieee.org Subject: RE: ReIssue: RE: When CE doesn't pass -----Original Message----- From: brian_ku...@leco.com [mailto:brian_ku...@leco.com] Sent: Friday, November 22, 2002 9:29 AM To: emc-p...@majordomo.ieee.org Subject: ReIssue: RE: When CE doesn't pass Thanks to everyone who responded to my earlier email. After reading the replies, I wanted to rephrase and clarify our situation to see if it matters. We design, manufacture, and market stand-a-lone Product A. But some of our customers want a complete turn-key system. So we purchase and re-sell Products B, C, and D. Each are individually marketed by their manufacturer and has the CE marking. We sell and setup this turn-key system for our customers. This might be seen as CE+CE+CE+CE should equal CE. Our company always wants to do what's right, so we test this turn-key system for CE. During the EMC testing, Product D causes the system to fail. Additional investigation finds that Product D fails all by itself, independent of the rest of the system. When the manufacturer of Product D is contacted, they reply with, "it passes when we test it". Another problem is that we do not have enough buying power to force them to look into the problem and threatening them with turning them in won't help us ship product. Is there any train of thought, loophole, or documentation trail that will allow us to market and sell this turn-key system? How do we become liable for a CE labeled product that someone else's makes? I know we don't want to sell a non-compliant system, but what are we to do? Some suggest fixing the product yourself. If it can't be done externally, as soon as we open up the unit don't we become responsible for it including safety? I don't think we want to do that. Thanks to all again, Brian Kunde LECO tc 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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"
