That would be my interpretation, yes, but you'd better ask CSA just to be sure!
Jim Eichner, P.Eng. Compliance Engineering Manager Xantrex Technology Inc. e-mail: jim.eich...@xantrex.com web: www.xantrex.com Any opinions expressed are those of my invisible friend. Confidentiality Notice: This email message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. From: P. Peruzzi [mailto:standa...@elen.it] Sent: Friday, April 01, 2005 12:30 AM To: Jim Eichner; emc-p...@ieee.org Subject: RE: protective earthing test Jim, thank you for your clarification. Regarding the applicability of C22.2 No 04, I've found that it was in the list of reference publications of C22.2 No 601-1 1990 edition, but it has been deleted from the list in the latest edition. Does it mean C22.2 No 04 is no longer applicable to medical devices? Paolo Peruzzi El.En. S.p.A. Via Baldanzese, 17 50041 Calenzano (FI) Italy Tel. +39 055 8826807 FAX +39 055 8832884 http://www.elengroup.com/ From: "Jim Eichner" <jim.eich...@xantrex.com> To: "P. Peruzzi" <standa...@elen.it>, <emc-p...@ieee.org> Sent: Thu, 31 Mar 2005 14:24:09 -0800 Subject: RE: protective earthing test > The CSA approach is that you base the test current on the branch > circuit overcurrent protection ahead of the product when installed as > intended because the available current will determine the heating of > the grounding and bonding path. > > In general, the breaker rating is multiplied by 2 and the test is run > for 2 minutes, because the CSA and UL standards for fuses and breakers > will allow anything up to 2 minutes for a breaker to trip at 200% of > it's rated current. For cord-connected products, it's 2 times the > plug rating but not less than 40A because a 15A plug fits into the > 15/20A T-slot receptacles and may therefore be protected by a 20A > breaker. For permanently connected products it's 2 times the breaker > rating for 2 minutes with a ceiling of 500A for breakers of 250A or > more. You'll need to get CSA C22.2 No. 0.4-04 (ie 2004 > version) for the latest requirements and details. > > However you'll need to discuss with CSA whether or not CSA 601.1 > over-rules CSA 0.4 on this topic, or perhaps the product needs to meet > both. > > Jim Eichner, P.Eng. > Compliance Engineering Manager > Xantrex Technology Inc. > e-mail: jim.eich...@xantrex.com > web: www.xantrex.com > > Any opinions expressed are those of my invisible friend. > > Confidentiality Notice: This email message, including any attachments, > is for the sole use of the intended recipient(s) and may contain > confidential and privileged information. Any unauthorized review, use, > disclosure or distribution is prohibited. > If you are not the intended recipient, please contact the sender by > reply e-mail and destroy all copies of the original message. > > -----Original Message----- > From: owner-emc-p...@listserv.ieee.org > [mailto:owner-emc-p...@listserv.ieee.org] On Behalf Of P. Peruzzi > Sent: Thursday, March 31, 2005 1:03 AM > To: emc-p...@ieee.org > Subject: protective earthing test > > Dear group, > > Regarding medical devices, I knew protective earthing test was > performed differently between EN 60601-1 and CAN/CSA 22.2 No.601-1. In > particular, I read some articles talking of a 30 Amps, 2 minutes test, > instead of 25 Amps, 5 seconds. Now, I've got CAN/CSA 22.2 N0 601-1, > both 1990 and reaffirmed 2001 editions, and I can't find any deviation > from IEC test. > > Could anybody help me to shed light on the matter? > > --------------------------------- > Paolo Peruzzi > El.En. S.p.A. > Via Baldanzese, 17 > 50041 Calenzano (FI) > Italy > > Tel. +39 055 8826807 > FAX +39 055 8832884 > http://www.elengroup.com/ > > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society > emc-pstc discussion list. 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Website: http://www.ieee-pses.org/ > > To post a message to the list, send your e-mail to emc-p...@ieee.org > > Instructions: > http://listserv.ieee.org/listserv/request/user-guide.html > > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > > Scott Douglas emcp...@ptcnh.net > Mike Cantwell mcantw...@ieee.org > > 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://www.ieeecommunities.org/emc-pstc This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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