This paper presents an overvie 2011 [1], a Guide that assists individuals, o suppliers with the application of motors in C and Class I, Zone 2 locations, where flamm vapors may occasionally be present. AC induction motors in ratings 0.18 kW (1/4 hp covered. Primary emphasis is on the nonexplosionproof or nonflameproof enclosed I, Division 2 and Class I, Zone 2 locations as 70- 2011. Precautions against excessive surf and sparking are included. To mitiga temperatures and sparking, this document p for selecting, operating, and maintaining motor IEEE 1349- 2001 [2] included Class applications; and IEEE 1349- 2011 was ex Class I, Zone 2 applications. The new guidance, adds new motor temperature test d manufacturers and users, expands Adjusta (ASD) application information including a section and common- mode voltage calc details additional test methods for determi temperature (non- destructive), and includ events since 2001. Manufacturers, users, a experts worked about 6 years to update standard. This paper does not replace the Gu used to supplement and understand the examples and highlighting new information. ew of IEEE 1349organizations, and Class I, Division 2 mable gases and synchronous and p) and larger are use of open or d motors in Class covered in NFPA face temperatures ate hot surface provides guidance rs. I, Division 2 xpanded to cover release updates data submitted by able Speed Drive Common ASD culation method, ining motor rotor des documented and other industry e this consensus ide, but should be Guide providing
