When using the pluggable power cord as the disconnect, were you required to check and demonstrate that the connectors on both ends of the power cord were rated for disconnection under load/current interrupting/ "hot unplug"?
-Ken A On Sat, Nov 3, 2012 at 9:26 PM, Bill Owsley <[email protected]> wrote: > At one point, we defined the E-stop as the pluggable power cord. > Faster and more reliable than any other option on the market because it > has two points of disconnect. > Jerk out either end and it worked. The wall plug was the 'remote' E-stop. > > ------------------------------ > *From:* Kim Boll Jensen <[email protected]> > *To:* "'Kunde, Brian'" <[email protected]>; > [email protected] > *Sent:* Wednesday, June 6, 2012 2:29 AM > *Subject:* SV: Laboratory Equipment - the forgotten child > > Dear Brian > > You are absolutely right. This is a big problem. EN 60204 is not > recognized around the world. I have just help a manufacturer to get into > Canada and they had to comply to EN 60204 for EU and IEC/EN 61010-1 for the > rest of the world. You can’t get a CB certificate for EN/IEC 60204. > > I have put a big effort into finding a good way around EN 60204 but I get > caught by EU guidelines and annexes in the standards. > > There must be other companies with the same problem. What do they do? > > Best regards, > > > Mr. Kim Boll Jensen > Bolls Aps > Ved Gadekæret 11F > DK-3660 Stenløse > > Phone: +45 48 18 35 66 > > [email protected] > www.bolls.dk > > > > *Fra:* [email protected] [mailto:[email protected]] *På vegne af *Kunde, > Brian > *Sendt:* 1. juni 2012 22:28 > *Til:* [email protected] > *Emne:* Laboratory Equipment - the forgotten child > > More trouble in the world of Laboratory Equipment (red headed step > child) and the Machinery Directive. > > I’ve had TUV offices in 3 Asian countries and a customer in Australia tell > us our products (Laboratory Equipment) must have an AC Lock Out Device, an > Emergency Stop Switch, and a Light Tower because “Laboratory Equipment now > falls under the Machinery Directive”. > > They are telling us that any AC product requires a lock out device. What? > > On one instrument we make, the only moving part is a small dc motor with a > wire brush similar to an electric tooth brush that cleans an electrical > contact between analysis. You can stop this motor by hand without injury. > This motor is also behind a double interlock door (due to an electrical > hazard), but yet they say we must have an E-Stop switch and Light Tower. > > I’m not familiar with the Light Towers. I’ve seen them on Large Production > Machines but what purpose do they serve on laboratory equipment no larger > that an upright piano? I understood they are only required to show the > operational status of a machine if not knowing the status could cause a > hazard or injury. Is there more to it? I don’t see why it would be needed > if there are no accessible hazards. > > I’m getting the feeling that some believe these things are required just > because laboratory falls under the machinery directive and not for any > other reason, which seems silly to me. In the past, the machinery directive > mainly covered the safety of Production Machines which generally require > these safety components. > > Can you imagine your next spectrum analyzer having an E-Stop switch > because of the cooling fan or the motorized CD drive door? Is this what it > is coming to? > > Why or why don’t you large powerful laboratory equipment manufacturers > fight for the official recognition of “Laboratory Equipment” and have our > own Directives, Standards, and requirements and not have to wade through > all the machinery Directive nonsense? What sense is the IEC/EN 61010-1 > standard if they are not harmonized to the MD? Why are we being forced to > apply the IEC/EN 60204-1 to Laboratory Equipment where 90% of the > requirements don’t or shouldn’t apply? > > Sorry for my rant. It’s been a long week. I’m just a small powerless voice > trying to sell safe products to a crazy crazy world.. > > The Other Brian > > ------------------------------ > *LECO Corporation Notice:* This communication may contain confidential > information intended for the named recipient(s) only. If you received this > by mistake, please destroy it and notify us of the error. Thank you. > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to < > [email protected]> > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in > well-used formats), large files, etc. > Website: http://www.ieee-pses.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 <[email protected]> > Mike Cantwell <[email protected]> > For policy questions, send mail to: > Jim Bacher <[email protected]> > David Heald <[email protected]> > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to < > [email protected]> > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in > well-used formats), large files, etc. > Website: http://www.ieee-pses.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 <[email protected]> > Mike Cantwell <[email protected]> > For policy questions, send mail to: > Jim Bacher <[email protected]> > David Heald <[email protected]> > > >
