ANSI/NFPA 30A is the Automobile and Marine Service Station Code, and has a table of "Electrical Equipment Classified Areas - Service Stations", which described the extent of classified areas adjacent to pumps and underground tanks.
For our Automated Teller Machines, I always ask the customer to tell me whether the installation is to be in a Classified Area (USA) or Hazardous Zone (UK). If they say that it is, I have to say that we do not claim that our products are suitable for such an installation, and that a fairly lengthy and probably expensive exercise would be necessary to research the requirements and to modify the products to meet the requirements. One such requirement is "all sources of ignition, including those associated with sparks of any sort or hot surfaces of electrical equipment should be excluded from hazardous areas, or, in the case of electrical equipment, should be specially protected". I think this came from BS5345, now superseded by EN60079. Typically, however, our products are installed in the sales area of a service station, where, as already noted, "normal" IT equipment can be found. The table in the above NFPA document puts "sales, storage, and rest rooms" in the category "nonclassified". I believe you also have to watch out for any equipment which might draw air in from a hazardous zone, in that this will effectively extend the hazardous zone; and also that the parking position of a delivery tanker might also extend a hazardous zone. Please be aware I am not an expect on this subject - as you can see from the above, I have tried not to become involved - successfully so far. Regards, John Crabb, Development Excellence (Product Safety) , NCR Financial Solutions Group Ltd., Kingsway West, Dundee, Scotland. DD2 3XX E-Mail :john.cr...@scotland.ncr.com Tel: +44 (0)1382-592289 (direct ). Fax +44 (0)1382-622243. VoicePlus 6-341-2289. -----Original Message----- From: Alex McNeil [mailto:alex.mcn...@ingenicofortronic.com] Sent: 04 December 2001 11:50 To: 'emc-p...@majordomo.ieee.org' Subject: ITE equipment in Petrol Station (Gas) outlets Hi Group, Can someone clarify the standards required for ITE to be placed in Petrol Station (or Gas for our N. American friends) outlets? The ITE may be placed indoors or outdoors at these sites. Normally our products are qualified for: Europe: EN55022 + EN55024 (EMC) and EN60950 (Safety for "indoor use only" class) N. America: FCC Part 15, ECES-003 (EMC) and UL1950 (Safety for "indoor use only" class) Petrol Station Indoors Europe??? N.America??? Petrol Station Outdoors Europe??? N.America??? Kind Regards Alex McNeil Principal Engineer Tel: +44 (0)131 479 8375 Fax: +44 (0)131 479 8321 email: alex.mcn...@ingenicofortronic.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: Michael Garretson: pstc_ad...@garretson.org Dave Heald davehe...@mediaone.net 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: No longer online until our new server is brought online and the old messages are imported into the new server. ------------------------------------------- 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: Michael Garretson: pstc_ad...@garretson.org Dave Heald davehe...@mediaone.net 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: No longer online until our new server is brought online and the old messages are imported into the new server.
