UL 2279-1996
UL Standard for Safety Electrical Equipment for Use in Class I, Zone 0, 1, and 2 Hazardous (Classified) Locations First Edition; Reprint with Revisions Through and Including December 6, 2001

Standard No.

UL 2279-1996

Release Date

1996

Published By

Underwriters Laboratories (UL)

Status

Be replaced 2009-04

Replace By

UL 2279 BULLETIN-2000

Latest

UL 2279 BULLETINS-2004

Scope

other UL Standards for equipment for use in Class I，Division 1 and 2 hazardous(classified)locations 1.1.1 added September 4 1998 1.2 These requirements do not cover equipment for use in Gas Group 1.2.1 These requirements do not cover purged and pressurized equipment which are covered in NFPA 496，Standard for Pu rged and Pressurized Enclosu res for Electrical Equipment 1.2.1 added September 4 1998 1.2.2 ThiS Standard is not applicable to electrical resistance heat tracina cables The requirements for ele吐rical resistance heat tracinq cables are located ln lEEE 51 5，Standard for the Testing，Design， lnstallation and Meintenance of Electrical Resistance Heat Tracing for lndustrial Applications and supersede those of Part 7 of this Standard All components of a heat tracing system intended to be in a hazardous(classified)location，that are not covered bv lEEE 515，Shall be evaluated using this Standard and the applicable sub—sections NOTE—Componen~such as power connections．splices．end terminations，as well as supply cable entries fittings，and seals are b be evaluated according to the type of protection employed 1.2.2 revised February 28 2000 1.3 A product that contains featu res，characteristics，components．materials，or systems new or different from those covered by the requireinents in thlS standard and that involves a risk of fire or of electric shock 0r㈨ury to persons Shall be evaluated using appropriate additional cornponent end end-product requirements to maintain the level of safetV as originallV anticipated by the intent of this standard A product whose features，characteristics，components，materialS，or systems comict with Specific requirements or provislons of thiS standard does not comply with this Standard Revision of requlrements shall be proposed and adopted in conformance with the methods employed for development revision ana imDlementatiOn of this standard 1.3 revised June 8 2000 1A Glossary 1A 1 For the pu rpose of this Standard，the following definitions apply 1A1 added June 8 2000 CopyrighL by Lhe Under~riLers LaboraLories IⅡc Sun Sep 05 15：24：14 g004

UL 2279-1996 history

• 2004 UL 2279 BULLETINS-2004 10/28/2004 (2p)
• 2004 UL 2279 BULLETIN-2004 UL Standard for Safety Electrical Equipment for Use in Class 1@ Zone 0@ 1@ and 2 Hazardous (Classified) Locations
• 2003 UL 2279 BULLETINS-2003 UL Standard for Safety Electrical Equipment for Use in Class 1@ Zone 0@ 1@ and 2 Hazardous (Classified) Locations (01/23/2003 (6p); 04/18/2003 (6p))
• 2002 UL 2279 BULLETINS-2002 8/19/2002 (54p)
• 2002 UL 2279 BULLETIN-2002 UL Standard for Safety Electrical Equipment for Use in Class 1@ Zone 0@ 1@ and 2 Hazardous (Classified) Locations
• 2001 UL 2279 BULLETINS-2001 UL Standard for Safety Electrical Equipment for Use in Class 1@ Zone 0@ 1@ and 2 Hazardous (Classified) Locations (09/21/2001 (2p); 02/12/2001 (53p))
• 2000 UL 2279 BULLETIN-2000 UL Standard for Safety Electrical Equipment for Use in Class 1@ Zone 0@ 1@ and 2 Hazardous (Classified) Locations
• 1996 UL 2279-1996 UL Standard for Safety Electrical Equipment for Use in Class I, Zone 0, 1, and 2 Hazardous (Classified) Locations First Edition; Reprint with Revisions Through and Including December 6, 2001