An answer from the Danish authority in the field of EN 61010-1 says: "As the product is connected to mains by means of a plug it is falling under 9.6.1 and shall be provided with an overcurrent protection. Section 9.6.3 - Other equipment cover only products that are not connected to mains"
That sounds reasonably to me but the wording still could be better, and I have suggested to the Danish authority that a rewording should be done with the next amendment to EN 61010-1. Regards, Niels Hougaard Bolls ApS Ved Gadekæret 11F DK-3660 Stenløse Denmark T: +45 48 18 35 66 F: +45 48 18 35 30 [email protected] www.bolls.dk -----Oprindelig meddelelse----- Fra: Richard Nute [mailto:[email protected]] Sendt: 1. november 2013 20:16 Til: [email protected] Emne: Re: [PSES] SV: [PSES] Concerning EN 61010-1, §9.6 Overcurrent protection 9.6 Overcurrent protection (no text) 9.6.1 General (uses the word "shall"; not the word "must") 9.6.2 Permanently connected equipment 9.6.3 Other equipment In context of the Clause, the requirement of 9.6.3 is to require the overcurrent device, if provided, be a part of the equipment. (Once it had set the overcurrent requirements for permanently connected equipment, 66E had to say something about overcurrent protection in non-permanently connected equipment.) Rich On 11/1/2013 4:43 AM, John Woodgate wrote: > In message <004c01ced6f2$b8ebbd90$2ac338b0$@dk>, dated Fri, 1 Nov > 2013, Niels Hougaard <[email protected]> writes: > >> Thank you for the answer. >> >> It is the word "if" in the beginning of the sentence that to me >> indicates that there is the other possibility "if not" as well. > > I understand your point, but I think the text is ambiguous and must be > clarified by IEC/CENELEC. > > 9.6 says an overcurrent protection device 'must' (word not allowed in > an IEC standard to express a requirement; the committee needs to > sharpen up its editing!) be provided. > > So 'If' in 9.6.3 appears to contradict the absolute requirement in 9.6. > > Incidentally, if there is a 9.6 and a 9.6.3, that is also contrary to > IEC editorial rule banning 'hanging text'. >> >> Edition 1 of 61010-1 (from 1993) had a somewhat clearer wording >> stating that there must be an overcurrent protection device in the >> equipment, and the changing of the wording could indicate that the >> requirements had changed. > > The change seems to be deliberate, but I think it is very unsatisfactory. - ---------------------------------------------------------------- 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]> - ---------------------------------------------------------------- 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]>
