In message <ofd7aa47d6.6923b69b-on8825745f.00010d6a-8825745f.00028...@slpower.com>, dated Wed, 4 Jun 2008, pat.law...@slpower.com writes:
>We have a customer in Hong Kong who is reporting problems using their >equipment in an operating room. Specifically, the GFI/RCCB/RCD (ground >fault detector) installed in the operating room trips, shutting off >power to the system. After resetting the GFI, the equipment can be >started successfully. It could be tripping due to RF interference from e.g. electrocautery instruments. > >My question concerns the use of GFIs in operating rooms. This sounds >unusual to me, and I'd think the GFI would have to meet many of the >same requirements that medical equipment needs to meet (e.g., >IEC60601-1 approval). Well, presumably it doesn't come anywhere near the patient, so 60601 may not be relevant. >Is anyone familiar with either requirements or prohibitions on the use >of GFIs in an operating room? I don't see anything about prohibition in BS 7671 (IEE Regulations), which probably still applies in Hong Kong. In fact, the new 17th edition wants them sprinkled liberally around all installations. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk Either we are causing global warming, in which case we may be able to stop it, or natural variation is causing it, and we probably can't stop it. You choose! John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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/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: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
