I think the point is that the standards committees are well aware of reversible plugs and so they put provisions in the standards that make the product safe anyway. Even some switched wall-sockets are single-pole. Qualified service technicians are obviously trained to be aware of the issue. With modern construction, also, it is difficult to get more than a finger-tip on any 'hot spots'. With best wishes DESIGN IT IN! OOO – Own Opinions Only <http://www.jmwa.demon.co.uk/> www.jmwa.demon.co.uk J M Woodgate and Associates Rayleigh England Sylvae in aeternum manent. From: Scott Xe [mailto:scott...@gmail.com] Sent: Monday, January 30, 2017 1:51 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Double Pole Mains Switches, Cord Connected Products Some national plugs may not be reversible but those countries also widely acceptable to 2-pin Europe plugs or 3-pin Schuko plugs that are reversible. The safety standards do not need DPDT switch in compliance. Even though the single pole is not restricted to be on the live wire. Thus the switch on neutral wire is still considered acceptance. Needless to say, single pole switch on live wire and DPDT switch are considered the best practice in safety perspective. As I see less and less this practice is implemented in the latest products due to no support from harmonised safety standards. Regards, Scott From: Mike Sherman ----- Original Message ----- <msherma...@comcast.net <mailto:msherma...@comcast.net> > Reply-To: <msherma...@comcast.net <mailto:msherma...@comcast.net> > Date: Sunday, 29 January 2017 at 12:16 AM To: <EMC-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> > Subject: [PSES] Double Pole Mains Switches, Cord Connected Products Because of the lack of polarization on many 2 pin European plugs, I have always recommended double pole mains switches on cord connected products for the EU market. However, I am not finding support for this in standards such as 60335-1, 60601-1 or 62368-1. Your thoughts will be appreciated, oh experienced group, on: --safety issue involved --standards that do require double pole (sometimes referred to as "all-pole") mains switches. Mike Sherman Graco Inc. - ---------------------------------------------------------------- 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 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 <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 <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 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 <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>
