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 d...@ieee.org +1 (519) 729-5704 > On 2-Sep-21, at 09:02, Scott Xe <scott...@gmail.com> 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 > <emc-p...@ieee.org <mailto:emc-p...@ieee.org>> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > <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/ > <http://product-compliance.oc.ieee.org/> can be used for graphics (in > well-used formats), large files, etc. > > Website: http://www.ieee-pses.org/ <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 > <http://www.ieee-pses.org/listrules.html> > For help, send mail to the list administrators: > Scott Douglas <sdoug...@ieee.org <mailto:sdoug...@ieee.org>> > Mike Cantwell <mcantw...@ieee.org <mailto:mcantw...@ieee.org>> > > For policy questions, send mail to: > Jim Bacher <j.bac...@ieee.org <mailto:j.bac...@ieee.org>> > David Heald <dhe...@gmail.com <mailto:dhe...@gmail.com>> > - ---------------------------------------------------------------- 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 <emc-p...@ieee.org> 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 <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>