Hi Chet, I don’t have any opinion as to UL 73, as I am not familiar with that standard, sorry. I just wanted to be sure that the mechanical safety aspects were not forgotten.
There are some excellent ISO standards that you might also find useful, although they are aimed at a broader audience than “just” North America. Also, you might be interested in this conveyor safety guide produced by IRRST. Excellent stuff. English translation by the WSPS in Ontario, Canada. http://www.wsps.ca/WSPS/media/Site/Resources/Downloads/User-Guide-to-Conveyor-Belt-Safety.pdf?ext=.pdf <http://www.wsps.ca/WSPS/media/Site/Resources/Downloads/User-Guide-to-Conveyor-Belt-Safety.pdf?ext=.pdf> Doug Nix [email protected] +1 (519) 729-5704 > On 16-Oct-18, at 16:17, Chester Summers <[email protected]> wrote: > > Hi, Doug— > Yes, ASME B20.1 applies and certain aspects of it were included in the > initial risk assessment. > > What’s your opinion as far as UL-73 is concerned? > > Chet > <> > From: Doug Nix [mailto:[email protected]] > Sent: Tuesday, October 16, 2018 1:38 PM > To: Chester Summers <[email protected]> > Cc: IEEE EMC PSTC <[email protected]> > Subject: Re: [PSES] safety standards--outdoor electric machine > > Hi Chester, > > Don’t forget that this kind of equipment should conform to ASME B20.1, Safety > Standard for Conveyors and Related Equipment. > > Doug Nix > [email protected] <mailto:[email protected]> > +1 (519) 729-5704 > > > On 16-Oct-18, at 12:03, Chester Summers <[email protected] > <mailto:[email protected]>> wrote: > > Hello, listmates— > > I’m scoping North American electrical safety standards for an a.c. mains > powered, portable conveyor system to support an outdoor construction process. > Used to assist in handling pipe lining fabric at the jobsite. The motor > will likely be no greater than ¾ HP single phase, 120Vac/60Hz. VFD motor > speed controller to manage the short conveyor belt (approximately 6ft long). > There are no product specific standards for this type of equipment, however > UL-73 for Motor Operated Appliances appears to check all the appropriate > electrical safety boxes. Conveyor-specific safety will be addressed with > ASME B20.1. > > I welcome expert opinions from the group—is UL-73 sufficient to evaluate this > product? > > Many thanks in advance, > Chet Summers > > > This email and any files transmitted with it from Charles Machine Works are > confidential and intended solely for the use of the individual or entity to > which they are addressed. - > ---------------------------------------------------------------- > > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. 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