Hello Chris, The exact standards you will need to look at are: IEC 60079-0 - ELECTRICAL APPARATUS FOR EXPLOSIVE GAS ATMOSPHERES - PART 0: GENERAL REQUIREMENTS IEC 60079-11 - ELECTRICAL APPARATUS FOR EXPLOSIVE GAS ATMOSPHERES - PART 11: INTRINSIC SAFETY "I" The “a” after the “i” signifies a 2 fault condition. Also, if a product was not designed with IEC 60079-11 in mind, going back and attempting to meet the requirements might turn into a big hurdle and costly project. A factory quality audit will also be required. I recommend that you visit the IECEx website at www.IECEx.com <http://www.iecex.com/> . I have a good contact that will be able to give a little more light and guidance on this subject, if you’re interested feel free to give me a call. Regards, David Cereceres Regulatory Engineer Safety & Environmental Pelco 559.292.1981 ext. 3493
From: [email protected] [mailto:[email protected]]On Behalf Of Chris Maxwell Sent: Thursday, December 08, 2005 6:21 AM To: [email protected] Subject: Zone 1 Exia area (Explosion protection) Happy holidays list dwellers. Thanks for a job well done and Best wishes to Rich Nute as well. He has now officially become a member of TLGTABATR (The Last Generation To Actually Be Able To Retire) Now who’s going to keep me in line? Anyway we have a customer in Australia asking if we have a product that is rated for Zone 1 Exia (maybe a typo…could that be “Exit”). They have explained that this rating deals with mine atmospheres where there could possibly be mixtures of explosive gases. We have never tested products for such a condition. Can anybody tell me what standard this rating is based on? Furthermore, does anybody know who performs such testing and what it entails?\ Thanks, Chris Maxwell, Design Engineer | Compliance Engineer Email: <mailto:[email protected]> [email protected], Desk Phone: 315-266-5128 Engineering Department Fax: 315-797-8024 NetTest (New York) Inc. 6 Rhoads Drive, Building 4, Utica, NY USA Web: <http://www.nettest.com> www.nettest.com, Phone: 315-797-4449 NetTest, a Member of the Anritsu Group - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
