Dear Doug, Thanks for your references! I will try to obtain those references for study.
Cheers! Scott On Thu, 2 Sept 2021 at 22:34, Doug Nix <[email protected]> wrote: > Hey Scott, > > You might want to have a look at > > EN 563, Safety of Machinery—Temperatures of touchable surfaces—Ergonomics > data to establish temp. limits > EN 13202, ERGONOMICS OF THE THERMAL ENVIRONMENT - TEMPERATURES OF > TOUCHABLE HOT SURFACES - GUIDANCE FOR ESTABLISHING SURFACE TEMPERATURE > LIMIT VALUES IN PRODUCT STANDARDS WITH THE AID OF EN 563 > > ISO 13732-1:2006, Ergonomics of the thermal environment — Methods for the > assessment of human responses to contact with surfaces — Part 1: Hot > surfaces > > Doug Nix > [email protected] > +1 (519) 729-5704 > > On 2-Sep-21, at 09:02, Scott Xe <[email protected]> wrote: > > I am looking for advice on temp measurements and the requirements. I have > an in-car charger with a temp of 80 degC on external plastic enclosure at > max load. Referring to EN 62368-1, the max temp is from 48 - 94 degC > depending on the time to be touched to operate the equipment. During > operation, it is unnecessary to touch the external enclosure except > plugging in and taking out from cigarette socket. Is it deemed to apply 94 > degC? > > > Should the max temp be measured at room temp of 25 degC or the maximum > operating temp? If at max operating temp, how to derive the max temp > limits in such conditions? > > > Thanks and 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.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://www.ieee-pses.org/list.html (including how to > unsubscribe) <http://www.ieee-pses.org/list.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://www.ieee-pses.org/list.html (including how to unsubscribe) 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]>
