Hello PS group, I would like to hear the opinions/recommendations of the EMC-PSTC group and especially anyone who has ever worked on a committee for the development and revision of IEC 950, EN60950, UL1950, CSA C22.2 No. 950 and any other national equivalents derived from IEC 950.
Over the years my company has designed and built industrial power supplies, primarily for vacuum deposition, etching, and ion implantation in the semiconductor manufacturing equipment industry as well as power delivery systems for glass coaters, tool hardening, inductive heating, etc. All these are generally Overvoltage Category III (OC III) installations. Most companies in my business use the 950 family of standards for the safety certification of their products. I believe that at one time in history this was valid due to the lack of industrial standards for products of this type. I also believe that the 950 standards are probably the best as far as engineering input goes. However none of these standards include equipment for OC III. Since the 950 standards are developed from IEC 664-1, it seems to me that an OC III should be possible under IEC 950. I hope my questions are simple: 1) How does one "certify" or "list" a product to 950 standards in an OC III environment? 2) Does agency turn a blind eye? 3) Is there an ethics or legal problem here? ================================== Doug Powell, Compliance Engineer Advanced Energy Industries, Inc. Fort Collins, Colorado USA 80525 doug.pow...@aei.com www.advanced-energy.com ================================== --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, j...@gwmail.monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
