Robert: To my best recollection, the essential difference is that Div. 2 is an environment subject to occasional presence (leaks) of flammable/explosive gases, while Div. 1 is where this stuff is always present or potentially present. I suppose this is a simplification, but I think it expresses things correctly.
What you need to do, is ideally, to design for Div 1 in the first place. I mean that it is engineering's job to design for Div 1 NOT test or safety's job to obtain compliance to Div 1. That said, I know that's not how it often works. I had good results with Factory Mutual in doing testing and gaining approvals for hazardous locations. Hazardous location design has many departures from the usual UL 1950/ 60950 type safety considerations. Regards, Jack Jacob Z. Schanker, P.E. 65 Crandon Way Rochester, NY 14618 Phone: 716 442 3909 Fax: 716 442 2182 [email protected] ----- Original Message ----- From: Loop, Robert <[email protected]> To: <[email protected]> Sent: Thursday, March 15, 2001 11:13 AM Subject: Class I Division 1 versus Class I Division 2 > > Hello Group, > > I need some education on Classified/Hazardous locations. > > What is the difference between a product that is certified to Class I > Division 1 versus Class I Division 2? > > If I had a product that was certified to Division 2, what would be needed to > make it pass Division 1 requirements? > > I apologize for my ignorance, there are simply too many standards out there > and this is out of my league. > > Sincerely, > Robert Loop > Engineering Supervisor > Wyle Laboratories > Product Safety > ph - (256) 837-4411 x313 > fax- (256) 721-0144 > e-mail: [email protected] > > > ------------------------------------------- > 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: > [email protected] > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Michael Garretson: [email protected] > Dave Heald [email protected] > > For policy questions, send mail to: > Richard Nute: [email protected] > Jim Bacher: [email protected] > > All emc-pstc postings are archived and searchable on the web at: > http://www.rcic.com/ click on "Virtual Conference Hall," > ------------------------------------------- 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: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"
