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
Re: [PSES] Meaning of regulating network in 61010-1
Let's assume for a moment that the answer is, yes, that programmable driver IC chips can be considered regulating networks. Since these parts are not certified how can you be sure that they are appropriate to use in your application? The answer to that is test. We use such programmable parts in some of our designs known as a High-Side Driver IC. They come out of the automotive product line and are fantastic parts. They use them in cars to turn on and off lights and accessories. You can overload them, short them out, subject them to rf, surges, ESD, etc. and they just keep working. When we test to failure they always fail with no output (safely). We have never been able to get them to fail in an unsafe way (excessive current). For us to qualify them we test them according to the standard; we overload them until they shut down, then reduce the load slightly and run them for up to 4 hours. We insure that all traces, cable, wires, connectors, etc. can handle the max overload current without overheating. We short the output as well but these ICs shut down and go into a pulse mode where every few seconds they test to see if the short has been removed. Once the short is removed the output voltage is restored. Even though we have a high confidence level in these parts they still are not certified as an overcurrent protection device. So, whenever we use them to drive an I/O cable, we always include a certified overcurrent protection device (OCPD). I take heat for this all the time because to be competitive these days you have to watch every penny and our design teams argue that the certified OCPD is not required, and our testing supports their position. They argue that regulating network that pass the overload and short test should be adequate for safety. I'm not sure how an NRTL or NB would view these parts. I imagine some labs would have issues, and others would test and let it go. I imagine it will remain a gray area with us for some time. I wish we could come up with a definite answer for these parts. The Other Brian From: Crane, Lauren [mailto:lauren.cr...@kla-tencor.com] Sent: Friday, January 31, 2014 1:54 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Meaning of regulating network in 61010-1 Does anyone have a clear idea as to what regulating network means in 61010-1:2010 section 9.4? The Other Brian asked a similar question in 2009, but did not get an answer (ref https://www.mail-archive.com/emc-pstc@listserv.ieee.org/msg60829.html ) Borrowing from his message (and updating to the new revision of the standard) The 61010-1 standard in section 9.4 calls out three methods that can provide a Limited-Energy Circuit; 1) inherently limited circuit; 2) over current protection device, and 3) a Regulating Network. e.g. would a programmable driver chip qualify as a regulating network? Regards, Lauren Crane KLA-Tencor - 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.orgmailto: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 emcp...@radiusnorth.netmailto:emcp...@radiusnorth.net Mike Cantwell mcantw...@ieee.orgmailto:mcantw...@ieee.org For policy questions, send mail to: Jim Bacher j.bac...@ieee.orgmailto:j.bac...@ieee.org David Heald dhe...@gmail.commailto:dhe...@gmail.com LECO Corporation Notice: This communication may contain confidential information intended for the named recipient(s) only. If you received this by mistake, please destroy it and notify us of the error. Thank you. - 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
Re: [PSES] Meaning of regulating network in 61010-1
In message d7a120055c354bfab42e77de52b0b...@blupr03mb119.namprd03.prod.outlook.com , dated Fri, 31 Jan 2014, Crane, Lauren lauren.cr...@kla-tencor.com writes: Does anyone have a clear idea as to what ?regulating network? means in 61010-1:2010 section 9.4? It's not a defined term, so any static 'network' (circuit) that meets the electrical requirements is acceptable. But something that depends on software working correctly is probably not acceptable. -- 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
Lauren, I have successfully certified products with a Regulating Network which is a power source having a current limiting regulation circuit, for example an approved wall wart or brick power supply which features output short circuit protection. Of course “approved” in this context means acceptable in the particular standard you are using and in the case of IEC/EN 61010-1:2010, must meet the limits of Tables 17 18. If your power source is an in-house design, it must be tested to meet these requirements as a part of the overall product certification and the circuit reported in the TRF you are using e.g IEC61010-1 I (2013-07), Form A.24. thanks, –doug Douglas E Powell 970-646-3732 doug...@gmail.com Skype: doug.powell52 http://www.linkedin.com/in/dougp01 From: Crane, Lauren Sent: Friday, January 31, 2014 11:53 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Meaning of regulating network in 61010-1 Does anyone have a clear idea as to what “regulating network” means in 61010-1:2010 section 9.4? The “Other Brian” asked a similar question in 2009, but did not get an answer (ref https://www.mail-archive.com/emc-pstc@listserv.ieee.org/msg60829.html ) Borrowing from his message (and updating to the new revision of the standard) The 61010-1 standard in section 9.4 calls out three methods that can provide a “Limited-Energy” Circuit; 1) inherently limited circuit; 2) over current protection device, and 3) a Regulating Network. e.g. would a programmable driver chip qualify as a regulating network? Regards, Lauren Crane KLA-Tencor - 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
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? Regards, Lauren -Original Message- From: John Woodgate [mailto:j...@jmwa.demon.co.uk] Sent: Friday, January 31, 2014 1:19 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Meaning of regulating network in 61010-1 In message d7a120055c354bfab42e77de52b0b...@blupr03mb119.namprd03.prod.outlook.com , dated Fri, 31 Jan 2014, Crane, Lauren lauren.cr...@kla-tencor.com writes: Does anyone have a clear idea as to what ?regulating network? means in 61010-1:2010 section 9.4? It's not a defined term, so any static 'network' (circuit) that meets the electrical requirements is acceptable. But something that depends on software working correctly is probably not acceptable. -- 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 - 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
Lauren, The term network has been used in other IEC based safety standards as a general term for a network of components used to provide an impedance for insulation coordination. I believe 60664-1 uses this term. I have seen TC-66 use other terminology which is not well defined. I attribute this practice to use of common industry terms where, for whatever reason, ambiguity is not considered a problem by committee members. I believe I am on the side of reduced explanatory text in order to minimize document size. In any case you should always check IECEE CTL decisions if you have questions or concerns. Doug Douglas Powell http://www.linkedin.com/in/dougp01 Original Message From: Crane, Lauren Sent: Friday, January 31, 2014 1:27 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Reply To: Crane, Lauren Subject: Re: [PSES] Meaning of regulating network in 61010-1 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? Regards, Lauren -Original Message- From: John Woodgate [mailto:j...@jmwa.demon.co.uk] Sent: Friday, January 31, 2014 1:19 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Meaning of regulating network in 61010-1 In message d7a120055c354bfab42e77de52b0b...@blupr03mb119.namprd03.prod.outlook.com , dated Fri, 31 Jan 2014, Crane, Lauren lauren.cr...@kla-tencor.com writes: Does anyone have a clear idea as to what ?regulating network? means in 61010-1:2010 section 9.4? It's not a defined term, so any static 'network' (circuit) that meets the electrical requirements is acceptable. But something that depends on software working correctly is probably not acceptable. -- 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 - 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 5e2a3fd0a2a440ba996ee9d18d6d7...@blupr03mb119.namprd03.prod.outlook.com , dated Fri, 31 Jan 2014, Crane, Lauren lauren.cr...@kla-tencor.com writes: 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? Almost certainly not. Electronics engineers are not generally highly-skilled in language studies, and when texts are supplied by different people, undefined terms are often not co-ordinated. Sometimes the IEC editors pick up such differences, but many of them are not highly trained in electronics, so wouldn't query the use of two words for the same thing. Looked at another way, what else could 'network' mean in this context? If there was an intention to make such a fine distinction, then 'circuit' and network' would have been defined. -- 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
I think it should be mentioned that in this context, network is not the same as you may find in CISPR Standards, such as impedance matching, stabilization and injection networks. Most of which are comprised of only passive components and possibly surge limiters. Thanks, - doug Douglas Powell http://www.linkedin.com/in/dougp01 Original Message From: John Woodgate Sent: Friday, January 31, 2014 2:28 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Reply To: John Woodgate Subject: Re: [PSES] Meaning of regulating network in 61010-1 In message 5e2a3fd0a2a440ba996ee9d18d6d7...@blupr03mb119.namprd03.prod.outlook.com , dated Fri, 31 Jan 2014, Crane, Lauren lauren.cr...@kla-tencor.com writes: 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? Almost certainly not. Electronics engineers are not generally highly-skilled in language studies, and when texts are supplied by different people, undefined terms are often not co-ordinated. Sometimes the IEC editors pick up such differences, but many of them are not highly trained in electronics, so wouldn't query the use of two words for the same thing. Looked at another way, what else could 'network' mean in this context? If there was an intention to make such a fine distinction, then 'circuit' and network' would have been defined. -- 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 - 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
For what it is worth, the IEC 60050 - International Electrotechnical Vocabulary - online Was blank on the exact phrase regulating network http://www.electropedia.org/ Chuck McDowell Meyer Sound Laboratories -Original Message- From: John Woodgate [mailto:j...@jmwa.demon.co.uk] Sent: 31 January, 2014 11:19 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Meaning of regulating network in 61010-1 In message d7a120055c354bfab42e77de52b0b...@blupr03mb119.namprd03.prod.outlook.com , dated Fri, 31 Jan 2014, Crane, Lauren lauren.cr...@kla-tencor.com writes: Does anyone have a clear idea as to what ?regulating network? means in 61010-1:2010 section 9.4? It's not a defined term, so any static 'network' (circuit) that meets the electrical requirements is acceptable. But something that depends on software working correctly is probably not acceptable. -- 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 NOTICE: This email may contain confidential information. Please see http://www.meyersound.com/confidential/ for our complete policy. - 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
