Re: VDE 0100 Part 253, VDE 0298 Part 4
I read in !emc-pstc that John Barnes jrbar...@iglou.com wrote (in 3e662c8b.7...@iglou.com) about 'VDE 0100 Part 253, VDE 0298 Part 4' on Wed, 5 Mar 2003: Do you know if there are any changes in the ampacity tables of BS 7671 between the 1992 and the 2001 editions? I'm not sure about 2001, but there were red faces all round about 3 months ago about the rating of 2.5 mm squared flat twin and earth, because it was inconsistent with the breaker rating for ring-mains. IIRC, the basic 'ampacity' (a term not used in British English) was increased from 21 to 22 A. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: VDE 0100 Part 253, VDE 0298 Part 4
John, Thank you for the tip on BS 7671. Techstreet wants $215 for BS 7671:2001, which is a bit too much for my budget when the ampacity tables are all that I am looking for. (I've already ordered over $1017 in engineering books and standards this week-- my mailman is going to hate me, having to deliver 27 heavy books if all the orders go through.) But I found a used copy of P. Cook's Commentary on BS 7671:1992 Requirements for Electrical Installations on Amazon.com for $30 plus shipping, so I ordered it. Do you know if there are any changes in the ampacity tables of BS 7671 between the 1992 and the 2001 editions? Thanks! John Barnes KS4GL, PE, NCE, ESDC Eng, SM IEEE dBi Corporation http://www.dbicorporation.com/ Woodgate wrote: I read in !emc-pstc that John Barnes jrbar...@iglou.com wrote (in 3e64d54d.7...@iglou.com) about 'VDE 0100 Part 253, VDE 0298 Part 4' on Tue, 4 Mar 2003: I am researching the ampacity (current-carrying capacity, Leitung in German) of wires for Appendix F of my book, Robust Electronic Design Reference. BS 7671 (the UK version of IEC 60364) has a lot of information on this subject. I suspect it's also in IEC 606364, but I haven't looked. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: VDE 0100 Part 253, VDE 0298 Part 4
I read in !emc-pstc that John Barnes jrbar...@iglou.com wrote (in 3e64d54d.7...@iglou.com) about 'VDE 0100 Part 253, VDE 0298 Part 4' on Tue, 4 Mar 2003: I am researching the ampacity (current-carrying capacity, Leitung in German) of wires for Appendix F of my book, Robust Electronic Design Reference. BS 7671 (the UK version of IEC 60364) has a lot of information on this subject. I suspect it's also in IEC 606364, but I haven't looked. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
VDE 0100 Part 253, VDE 0298 Part 4
EMC/PSTC'ers, I am researching the ampacity (current-carrying capacity, Leitung in German) of wires for Appendix F of my book, Robust Electronic Design Reference. A WECO catalog pointed me to VDE 0100 Part 253, and searching the Internet I also ran across a number of references to VDE 0298 Part 4 for the ampacity of wires and cables under various installation conditions. Some of the web pages that I found seem to mix values from these two standards, which is very confusing because they seem to differ by 10% for the same wire size, temperature rating for the insulation, ambient temperature, and installation condition (in conduit, in equipment, in cable, in free air). I am willing to buy the standards to resolve this question (even though they seem to be available only in German, as paper copies) if I can find out which ones to buy. I think that I am looking for VDE 0100 part 523.6-81 (VDE 0100 Teil 523.6-81) with tables for Gruppe 1, Gruppe 2, and Gruppe 3 and Tables 3 and 4. Techstreet ( http://www.techstreet.com/ ) lists: * VDE 0100dated 01-May-1973. === this one? * VDE 0100 Beiblatt 1 dated 01-Nov-1982.(Supplement 1) * VDE 0100 Beiblatt 2 dated 01-Mar-1983.(Supplement 2) * VDE 0100 Beiblatt 5 dated 01-Nov-1995.(Supplement 5) If VDE standards are like a lot of the EMC standards, supplements only give the information that has changed, so buying the wrong supplement would just be a waste of my time and money. Similarly, I think that I am looking for VDE 0298 part 4: * VDE 0298-100 dated 01-Dec-1992. * VDE 0298-3 dated 01-Aug-1983. * VDE 0298-300 dated 01-Feb-1997. * VDE 0298-4 dated 01-Aug-1995. === this one? I have E-mailed VDE directly, but don't know if/when I will get a reply from them. Thanks! John Barnes KS4GL, PE, NCE, ESDC Eng, SM IEEE dBi Corporation http://www.dbicorporation.com/ (859)253-1178 phone (859)252-6128 fax This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
