Brian and Ken, Thank you for the comments. From these I now get the reason why the statement showed up in our user manual. The product is enclosed in a housing that did not meet the fire enclosure requirements. This was all done before my time so am having to 'catch-up' with what was done and why. But your comments helped to clarify the background.
Thanks again. Regards, Scott Brian O'Connell wrote: > Class II != Class 2 > > Class II construction does not necessarily require that the input or output be rated Class 2/inherently limited/LPS/etc. > > An important reason for specifying Class 2/LPS-only input is so that the end-use device will not be a shock hazard (limits on V, VA, A, and touch current as specified by UL1310 and CSA 223). > > And yes, the 'agency' would have to investigate some equipment, even if the input is only allowed to be an inherently limited source. > > Brian > > -----Original Message----- > From: [email protected] [mailto:[email protected]]On Behalf Of American Idle > Sent: Wednesday, September 16, 2009 8:50 PM > To: Scott Douglas > Cc: EMC PSTC > Subject: Re: Looking for Source of Requirement > > The Safety Agency won't have to investigate, for example, the flammability requirements, or the accessability requirements, if a component is powered by LPS only. So either the manufacturer couldn't do, or wouldn't pass, this testing on the product; and as a result, a condition of it's use is that it can only be powered by LPS/Class II supply. > > -Ken A. > > > On Wed, Sep 16, 2009 at 9:07 PM, Scott Douglas <[email protected]> wrote: > > To All, > > I find this statement is a user manual: > > "This product is intended to be supplied by a Listed Power Unit, marked with “Limited Power Source,” “LPS” and “Class II” on the unit, and output rated ..." > > The product is usually approved to either ITE (60950) or to A/V (60065) standards. I am curious to know where this requirement comes from, specifically page, paragraph, and rule. I looked in both and did not find it. > > Can anyone point me to a source? > > As always, thanks in advance for your help. > > Kind regards, > Scott > > > > - 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.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. 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]>
