RE: IEC 61010 requirements
Peter, Please let me have the name of the surgeon with the cellphone, so I'll be careful to avoid him!! Best Wishes, Jon On 21 Feb 2003 at 15:17, peter merguerian wrote: Jon, I must say that I somewhat disagree with you. A medical equipment as defined in IEC60601-1 is one that is for professional use. The surgeon's e-mails PC can also be used by his son and I do not consider it professional in the sense of the standard. Let's not exagerate here! A person with too many medical devices should stay in bed. The other day, I called a surgeon and he happened to be in the operating room with his cellphone performing an operation. Does that make his cellular comply with IEC 601-1? Peter Jon Griver jgri...@601help.com wrote: Delphina, It's not only an issue of intended use, but also a question of location. With regard to the example you give, if a PC for the surgeon's urgent emails is located within the 'patient vicinity', as defined in IEC 60601-1-1 (within about 6 feet of the patient's bed), then I believe that it should comply with IEC 60601-1, even though it's not a medical device. The reasoning behind this is that the patient could possibly touch the PC (that's the logic behind the 'patient vicinity' concept), and close a leakage current loop, together with other medical instruments with which he is in contact. This could be particularly nasty if there is a fault in the PC's earth wire. Regards, Jon Griver http://www.601help.com The Medical Device Developers Guide to IEC 60601-1 On 20 Feb 2003 at 12:38, Han, Delphina wrote: ! gt; Hi all, Thanks for your responses. When I originally asked the question, I was sure that the particular equipment I was asking about does not fall under the scope IEC60601, but I wanted to confirm if IEC61010 is the relevant standard. As you may notice, I have a copy of the IEC60601 standard but not IEC61010! I also needed to find out if there were special requirements for isolation transformers in IEC61010. From the discussion, it seems that which standard to comply with is dependent on the intended use, and not where the equipment is placed. So, if we put a PC in the hospital operating room, but it is just for the surgeon to let's say, check email (not practical...but this is just an example), would 60950 be the relevant standard? I doubt it'd have to meet 60601 requirements. How about EMC standards? (maybe I should start a ne! w thread...). Will this PC have to meet IEC 60601-1-2! for medical? Or EN 55022 for ITE? Bear in mind this is in the hospital operating room. I am familiar with medical equipment requirements but not so much with ITE, so forgive me if I'm making mistakes here. My thoughts are all from the regulatory point of view. Of course if the customer wants compliance with a more stringent requirement, that is what he gets... I appreciate all your thoughts/comments! -Delphina At 09:10 AM 2/19/2003 -0800, Han, Delphina wrote: Hi I am trying to find out safety requirements for devices that control and monitor equipment in a hospital lab (used for pathology). Does it fall under the IEC 61010 standard? If so, are there any requirements for use of isolation transformers in! that standard? Thanks in advance for your response! -Delphina --- 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.or! g Archive is being moved, ! we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc --- 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
Re: IEC 61010 requirements
I read in !emc-pstc that peter merguerian pmerguerian2...@yahoo.com wrote (in 20030221231714.74613.qm...@web14806.mail.yahoo.com) about 'IEC 61010 requirements' on Fri, 21 Feb 2003: The other day, I called a surgeon and he happened to be in the operating room with his cellphone performing an operation. Does that make his cellular comply with IEC 601-1? Maybe not, but there are VERY serious EMC issues. No cell-phone should be switched on in an OR. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! 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 Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: Temp chamber
Hi Dave -- You could try ITC Engineering Services (925-862-2944) a few minutes north of Fremont on Hwy. 680. Mention my name. -- John McBain - Original Message - From: Dave mailto:davewilson...@yahoo.com Wilson To: emc-p...@ieee.org Sent: Thursday, February 20, 2003 11:10 AM Subject: Temp chamber Hello Group, An ex-colleague of mine is looking to use a temperature chamber for a short time to do some tests, in the Bay Area. Anyone know of a way of doing this without too much expense? Thanks in advance, Dave Wilson _ Do you Yahoo!? Yahoo! http://rd.yahoo.com/finance/mailtagline/*http://taxes.yahoo.com/ Tax Center - forms, calculators, tips, and more
Re: Shieled ethernet cables in Germany
Hi Nevin, George, and the group, Although screened ethernet systems are favored in Europe, some of them perform considerably worst than unshielded systems in terms of emissions and immunity. Some poorly designed systems (use of pigtails on shields) radiate more, and even the best systems cannot match the immunity performance of unshielded systems in tests I helped perform in Switzerland a few years ago. The paper, published at Roma94 is posted on my site at: http://emcesd.com/pdf/roma94.pdf It is interesting to note that even good shielded systems can induce failures of PCs in IEC 61000-4-4 by providing a low impedance path for the common mode EMI to get into the works of the PCs, quite separate issue from the data transmission itself. Unshielded systems do not do this because of the CM chokes and balancing transformer design in the interface circuity. Doug neve...@attbi.com wrote: To my knowledge, only when the Class B for Central-Office equipment has to be met. Neven Hello Group, I heard recently that shielded Ethernet cables have become something of a customer-expectation-based defacto standard in Germany for installation of network type ITE equipment (routers, switches, firewalls, etc.) Can anyone confirm or comment on that. Is it like that anywhere else? Thanks George Stults WatchGuard Technologies Inc. -- ___ _ Doug Smith \ / ) P.O. Box 1457 = Los Gatos, CA 95031-1457 _ / \ / \ _ TEL/FAX: 408-356-4186/358-3799 / /\ \ ] / /\ \ Mobile: 408-858-4528 | q-( ) | o |Email: d...@dsmith.org \ _ /]\ _ / Website: http://www.dsmith.org 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 Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
