Chris, Looks like you're dealing with equipment for use in explosive atmosphere's legislation/standards. The exact details vary a bit depending on the world-region (US, Europe, etc...). One of the basic "how to determine zones" documents is IEC 60079-10 and its few clones.
Watch out also for the two so-called ATEX directives comming down the pike in Europe. Optional now, mandatory in May 2003. There is one for the workplace and one for the equipment that goes into the workplace. Cheers, Lauren Crane TUV America -----Original Message----- From: Chris Maxwell To: EMC-PSTC Internet Forum Sent: 7/29/2002 10:51 AM Subject: Hazardous Area Designations/Certifications Hi all, I have been asked a question regarding the following: "use in a Zone 1 and Zone 2 classified area. This equipment shall be certified EEX d and EEx n by a relevant authority (e.g. BASEEFA, CENELEC etc.) and shall be suitable for Gas Group IIB and Temperature Class T3." Can anyone elaborate on the above information? What standard defines "Zone 1" or "Zone 2"? What standard defines "EEX d" and "EEX n"? What about "Gas Group IIB" and "Temperature Class T3?" Any clarification, elaboration, elucidation and/or explanation that the group members could provide would certainly be appreciated. Thanks, Chris Maxwell | Design Engineer - Optical Division email chris.maxw...@nettest.com | dir +1 315 266 5128 | fax +1 315 797 8024 NetTest | 6 Rhoads Drive, Utica, NY 13502 | USA web www.nettest.com | tel +1 315 797 4449 | ------------------------------------------- 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 All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
