The voltages are derived from electrochemical reaction data referenced to a hydrogen electrode at 298.15°K and 101.325 kPa. These are published in various references, including the "CRC Handbook of Chemistry and Physics". You consider all possible reactions among the metals and decide which reactions are likely to occur spontaneously. Unfortunately this data does not include alloys.
David From: Peter L. Tarver [mailto:peter.tar...@sanmina-sci.com] Sent: Tuesday, October 14, 2003 2:19 PM To: PSTC Subject: electrochemical potentials I am reviewing some dissimilar material combinations in an earthing path. I have reviewed a lot data available on-line and in a few reference texts. I would now like to better understand the origins of Table J.1 in IEC60950. Does anyone know where the data on which Table J.1 is based originated? Was it a reference standard or data from an industry association? Something else? I am finding Table J.1 might be useful as a reference, but little else. The types of alloys referenced can have electrochemical potential differences relative to one another that vary 10% or more from the values shown in the table. I'd appreciate any input you might have. Regards, Peter L. Tarver, PE Product Safety Manager Homologation Services Sanmina-SCI Corp. San Jose, CA peter.tar...@sanmina-sci.com 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: emc_p...@symbol.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: emc_p...@symbol.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
