[PSES] Conflict - cited standard vs. OJ standard
Some of the standards in the EN54-series (fire alarm equipment / CPR - Contruction Product Regulations) have reference to the EMC standard EN50130-4. Not only the standard is cited, but also the version (EN 50130-4:1995+A1:1998). I've been told that Notified Bodies shall use only the standards in the edition mentioned by date in hEN even if CEN has withdrawn and superseded such standards. Therefore, what happens when EN50130-4:2011 comes into force in June 2014 and EN 50130-4:1995+A1:1998 are withdrawn? Should we follow the Official Journal (OJ) or the Notified Bodies requirements? Best regards Amund - 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com
Re: [PSES] Conflict - cited standard vs. OJ standard
In message 000a01cf2182$bfd4c090$3f7e41b0$@westin-emission.no, dated Tue, 4 Feb 2014, Amund Westin am...@westin-emission.no writes: ome of the standards in the EN54-series (fire alarm equipment / CPR - Contruction Product Regulations) have reference to the EMC standard EN50130-4. Not only the standard is cited, but also the version (EN 50130-4:1995+A1:1998). I've been told that Notified Bodies shall use only the standards in the edition mentioned by date in hEN even if CEN has withdrawn and superseded such standards. That is correct, for dated references. Withdrawn standards are preserved for that reason. Therefore, what happens when EN50130-4:2011 comes into force in June 2014 and EN 50130-4:1995+A1:1998 are withdrawn? Should we follow the Official Journal (OJ) or the Notified Bodies requirements? What SHOULD happen is that the EN 54 Parts concerned should be (should already have been!) reviewed to see if the reference can be updated or not. It might not be possible - the referenced text might not exist in the 2011 edition. If the committee's officers haven't started the process, it's up to both the CEN Central Secretariat and the users of the standard to flag up the need. -- OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk Nondum ex silvis sumus John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com
Re: [PSES] Conflict - cited standard vs. OJ standard
Amund, everyone The principle is that the primary harmonised standard (in this case EN 54) sets the requirements, and the dated reference prevails over the edition listed in the OJ. However if EN 50130-4 is applied directly in its own right to a product, then the OJ dates are used. The guidance on this is published in CENELEC Guide 25: Guide on the use of standards for the implementation of the EMC directive to apparatus, which may be downloaded free of charge from the CENELEC website here http://www.cenelec.eu/membersandexperts/referencematerial/cenelecguides.html The relevant text reads as follows: In some cases, a harmonised standard will make reference by dated reference to another harmonised standard, each standard being listed in the OJEU for the EMC Directive. In such cases, the specific edition of the referenced EN is to be applied irrespective of whether that edition is currently listed in the OJEU. This follows the principle that the primary standard provides the requirements for the apparatus, and hence presumption of conformity in respect of the EMC Directive as described in Annex ZZ of that standard (see Annex E of this Guide). See also C.2 e) below for the specific example where the standards are based on international versions. I would also recommend Guide 24: Electromagnetic Compatibility (EMC) Standardization for Product Committees concerned with apparatus, as useful background information on European EMC standards, which may be downloaded from the same web page. I hope this helps Best wishes Brian Brian Jones EMC Consultant -Original Message- From: Amund Westin [mailto:am...@westin-emission.no] Sent: 04 February 2014 08:26 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Conflict - cited standard vs. OJ standard Some of the standards in the EN54-series (fire alarm equipment / CPR - Contruction Product Regulations) have reference to the EMC standard EN50130-4. Not only the standard is cited, but also the version (EN 50130-4:1995+A1:1998). I've been told that Notified Bodies shall use only the standards in the edition mentioned by date in hEN even if CEN has withdrawn and superseded such standards. Therefore, what happens when EN50130-4:2011 comes into force in June 2014 and EN 50130-4:1995+A1:1998 are withdrawn? Should we follow the Official Journal (OJ) or the Notified Bodies requirements? Best regards Amund - 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com
Re: [PSES] Conflict - cited standard vs. OJ standard
In message 00bc01cf2191$4d2ec900$e78c5b00$@co.uk, dated Tue, 4 Feb 2014, Brian Jones e...@brianjones.co.uk writes: he principle is that the primary harmonised standard (in this case EN 54) sets the requirements, and the dated reference prevails over the edition listed in the OJ. However if EN 50130-4 is applied directly in its own right to a product, then the OJ dates are used. This is very good advice, but I think there is another aspect that should be considered. WHY is it necessary for a committee to review dated cross-references in its standards? If the new edition of the referenced standard contains the same, or effectively the same, text as the previous edition, then simple updating is desirable, if not strictly necessary according to Brian's statement of the rule. But if the new edition does NOT contain relevant text, then action almost certainly needs to be taken. For example, the cross-reference could be to a requirement, or even a whole method of measurement, that has been abandoned or superseded. -- OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk Nondum ex silvis sumus John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com
Re: [PSES] Conflict - cited standard vs. OJ standard
Brian, That guidance is not quite applicable here. Only EN 50130-4 is listed in the OJ as an EMC standard and so can be the only standard used for presumption of conformity. The EN 54 series is a product performance set of standards and the requirements contained therein technically have no bearing (from an EMC point of view) on conformity. Kind Regards Kevin -Original Message- From: Brian Jones [mailto:e...@brianjones.co.uk] Sent: February-04-14 5:10 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Conflict - cited standard vs. OJ standard Amund, everyone The principle is that the primary harmonised standard (in this case EN 54) sets the requirements, and the dated reference prevails over the edition listed in the OJ. However if EN 50130-4 is applied directly in its own right to a product, then the OJ dates are used. The guidance on this is published in CENELEC Guide 25: Guide on the use of standards for the implementation of the EMC directive to apparatus, which may be downloaded free of charge from the CENELEC website here http://www.cenelec.eu/membersandexperts/referencematerial/cenelecguides.html The relevant text reads as follows: In some cases, a harmonised standard will make reference by dated reference to another harmonised standard, each standard being listed in the OJEU for the EMC Directive. In such cases, the specific edition of the referenced EN is to be applied irrespective of whether that edition is currently listed in the OJEU. This follows the principle that the primary standard provides the requirements for the apparatus, and hence presumption of conformity in respect of the EMC Directive as described in Annex ZZ of that standard (see Annex E of this Guide). See also C.2 e) below for the specific example where the standards are based on international versions. I would also recommend Guide 24: Electromagnetic Compatibility (EMC) Standardization for Product Committees concerned with apparatus, as useful background information on European EMC standards, which may be downloaded from the same web page. I hope this helps Best wishes Brian Brian Jones EMC Consultant -Original Message- From: Amund Westin [mailto:am...@westin-emission.no] Sent: 04 February 2014 08:26 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Conflict - cited standard vs. OJ standard Some of the standards in the EN54-series (fire alarm equipment / CPR - Contruction Product Regulations) have reference to the EMC standard EN50130-4. Not only the standard is cited, but also the version (EN 50130-4:1995+A1:1998). I've been told that Notified Bodies shall use only the standards in the edition mentioned by date in hEN even if CEN has withdrawn and superseded such standards. Therefore, what happens when EN50130-4:2011 comes into force in June 2014 and EN 50130-4:1995+A1:1998 are withdrawn? Should we follow the Official Journal (OJ) or the Notified Bodies requirements? Best regards Amund - 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com This e-mail contains privileged and confidential information intended for the use of the addressees named above. If you are not the intended recipient of this
Re: [PSES] Conflict - cited standard vs. OJ standard
Kevin, everyone OK, this is a problem with giving general guidance on a list such as this! The guidance that I described works when the two harmonised standards are harmonised under the same directive or regulation. I am not familiar with the Construction Products Regulation 305/2011 but the CEN website shows that the various parts of EN 54 are expected to be harmonised under that, and were harmonised under the superseded directive 89/106/EEC. I see also (from a word search) that the text of 305/2011 does not reference EMC or 2004/108/EC. So the edition(s) of EN 50140-3 listed in the OJ under 2004/108/EC apply for a presumption of conformity under EMCD until the doc of the superseded standard is passed. Of course harmonised standards are always voluntary and for EMCD, Annex II point 2 sets the requirements where Annex II point 1 is not followed in respect of harmonised standards. I don't have copies of the parts of EN 54 either. Perhaps someone familiar with the CPR can explain the consequences from that side. Best wishes Brian -Original Message- From: Harris, Kevin J (DSC) [mailto:kevinharr...@tycoint.com] Sent: 04 February 2014 14:13 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Conflict - cited standard vs. OJ standard Brian, That guidance is not quite applicable here. Only EN 50130-4 is listed in the OJ as an EMC standard and so can be the only standard used for presumption of conformity. The EN 54 series is a product performance set of standards and the requirements contained therein technically have no bearing (from an EMC point of view) on conformity. Kind Regards Kevin -Original Message- From: Brian Jones [mailto:e...@brianjones.co.uk] Sent: February-04-14 5:10 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Conflict - cited standard vs. OJ standard Amund, everyone The principle is that the primary harmonised standard (in this case EN 54) sets the requirements, and the dated reference prevails over the edition listed in the OJ. However if EN 50130-4 is applied directly in its own right to a product, then the OJ dates are used. The guidance on this is published in CENELEC Guide 25: Guide on the use of standards for the implementation of the EMC directive to apparatus, which may be downloaded free of charge from the CENELEC website here http://www.cenelec.eu/membersandexperts/referencematerial/cenelecguides.html The relevant text reads as follows: In some cases, a harmonised standard will make reference by dated reference to another harmonised standard, each standard being listed in the OJEU for the EMC Directive. In such cases, the specific edition of the referenced EN is to be applied irrespective of whether that edition is currently listed in the OJEU. This follows the principle that the primary standard provides the requirements for the apparatus, and hence presumption of conformity in respect of the EMC Directive as described in Annex ZZ of that standard (see Annex E of this Guide). See also C.2 e) below for the specific example where the standards are based on international versions. I would also recommend Guide 24: Electromagnetic Compatibility (EMC) Standardization for Product Committees concerned with apparatus, as useful background information on European EMC standards, which may be downloaded from the same web page. I hope this helps Best wishes Brian Brian Jones EMC Consultant -Original Message- From: Amund Westin [mailto:am...@westin-emission.no] Sent: 04 February 2014 08:26 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Conflict - cited standard vs. OJ standard Some of the standards in the EN54-series (fire alarm equipment / CPR - Contruction Product Regulations) have reference to the EMC standard EN50130-4. Not only the standard is cited, but also the version (EN 50130-4:1995+A1:1998). I've been told that Notified Bodies shall use only the standards in the edition mentioned by date in hEN even if CEN has withdrawn and superseded such standards. Therefore, what happens when EN50130-4:2011 comes into force in June 2014 and EN 50130-4:1995+A1:1998 are withdrawn? Should we follow the Official Journal (OJ) or the Notified Bodies requirements? Best regards Amund - 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
Re: [PSES] Conflict - cited standard vs. OJ standard
In message 023e01cf21ca$7b5915e0$720b41a0$@co.uk, dated Tue, 4 Feb 2014, Brian Jones e...@brianjones.co.uk writes: OK, this is a problem with giving general guidance on a list such as this! The guidance that I described works when the two harmonised standards are harmonised under the same directive or regulation. But Guide 25 is quite general; it doesn't say that its provision only applies where the standards are harmonized under the same Directive. Furthermore, whether the dated reference applies or not depends on the detail of what function the reference performs, not on general rules. So we have a can of worms. At least, it seems that Guide 25 needs to be clarified, but the main point surely is that **dated references must be individually reviewed (by the committee officers or a delegated rapporteur)**, preferably annually, to see if they are still valid. -- OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk Nondum ex silvis sumus John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com
Re: [PSES] Meaning of regulating network in 61010-1
From: Crane, Lauren Sent: Friday, January 31, 2014 12:27 John, Your reply makes sense to me, but it also brings me to notice that circuit is used freely in the surrounding text, and yet the standard says regulating network rather than regulating circuit perhaps this implies network is a narrower concept? In undergrad courses I attended, 'network' and 'circuit' were used interchangeably. Peter Tarver This email message is for the sole use of the intended recipient(s) and may contain confidential and/or privileged information. If you are not an intended recipient, you may not review, use, copy, disclose or distribute this message. If you received this message in error, please contact the sender by reply email and destroy all copies of the original message. - 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com
Re: [PSES] Meaning of regulating network in 61010-1
Electrical engineering offers coures in Network theory, electrical circuits therory etc However if you make a schematic with Z1, Z2 Z3 etc in series/Parallel combination, It is more like impedence network and not really a circuit. You can transform this network to circuits by changing Z1, Z2, Z3 etc to RLC in series/Parallel combination. So in short impedence single element/combination is a network and RLC single element/combination is circuit. Any takers Sudhakar From: Peter Tarver ptar...@enphaseenergy.com To: EMC-PSTC@LISTSERV.IEEE.ORG Sent: Tuesday, February 4, 2014 10:23 AM Subject: Re: [PSES] Meaning of regulating network in 61010-1 From: Crane, Lauren Sent: Friday, January 31, 2014 12:27 John, Your reply makes sense to me, but it also brings me to notice that circuit is used freely in the surrounding text, and yet the standard says regulating network rather than regulating circuit perhaps this implies network is a narrower concept? In undergrad courses I attended, 'network' and 'circuit' were used interchangeably. Peter Tarver This email message is for the sole use of the intended recipient(s) and may contain confidential and/or privileged information. If you are not an intended recipient, you may not review, use, copy, disclose or distribute this message. If you received this message in error, please contact the sender by reply email and destroy all copies of the original message. - 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com
Re: [PSES] Meaning of regulating network in 61010-1
In message 1391542671.33395.yahoomail...@web141102.mail.bf1.yahoo.com, dated Tue, 4 Feb 2014, sudhakar wasnik saloni95...@yahoo.com writes: So in short impedence single element/combination is a network and RLC single element/combination is circuit There are millions of such examples, many of them contradictory. It's mostly useless to try to construct rigid definitions from popular usage. Very often, a word 'sounds right' in a particular context, but not in another. Consider, for example, 'electricity supply network' - you wouldn't say 'circuit'. But 'SMPS circuit', not 'network'. -- OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk Nondum ex silvis sumus John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com
Re: [PSES] Meaning of regulating network in 61010-1
From: sudhakar wasnik Sent: Tuesday, February 04, 2014 11:38 So in short impedence single element/combination is a network and RLC single element/combination is circuit. Any takers It's completely arbitrary whether or not a circuit is considered a network. A differentiation could be derived based on passive -v- active components, number of nodes, or based on function. Someone will always have a different opinion. In the standards world, they are used interchangeably. Peter Tarver This email message is for the sole use of the intended recipient(s) and may contain confidential and/or privileged information. If you are not an intended recipient, you may not review, use, copy, disclose or distribute this message. If you received this message in error, please contact the sender by reply email and destroy all copies of the original message. - 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 emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: dhe...@gmail.com
