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Arcs, sparks and high temperatures on the surfaces of electric motors are common sources of ignition of hazardous substances. Therefore the right motors need to be specified and selected for use in this kind of environments otherwise the consequences of an explosion and eventual fire resulting from using the wrong kind of motor could range from minor injuries, production down time and. guide for the application of electric motors in class 1, division 2 and class 1, zone 2 hazardous (classified) locations IEEE INDUCTION MACHINERY MAINTENANCE TESTING AND FAILURE ANALYSIS. buy ieee guide for the application of electric motors in class 1, division 2 and class 1, zone 2 hazardous (classified) locations from sai global. Energy Management Guide for Selection and Use of Fixed Frequency Medium AC Squirrel-Cage Polyphase Induction Motors Energy Management Guide for Selection and Use of Single-Phase Motors General Specification for Consultants, Industrial and Municipal: NEMA Premium® Efficiency Electric Motors ( V or Less).
various Class I and Class II hazardous materials are pro-vided in Table 1. Class I, Division 1 motors Motors for use in environments deemed Class I, Divi-sion 1 must be built and labeled as explosion-proof. An explosion-proof motor has several important characteristics. First, the motor must be constructed in such a way that it will be able to. Motors and generators must be identified for use in Class I, Div. 1 (or Div. 2 for a Div. 2 location). Two special types of enclosed motors are exempted from this requirement. Luminaires used in Class I, Div. 1 must be identified and marked for that use. However, in these EFF standards changed to the current IEC standards for electric motors to overcome the international inconsistencies in regulations between electric motor standards and efficiency classes. For example, the US established the NEMA standards for electric motors, which differed a lot from the EU standards. The guidelines of this document address electric wiring, equipment, and systems installed in hazardous (classified) locations and contain specific provisions for the following: wiring methods, wiring connections, conductor insulation, flexible cords, sealing and drainage, transformers, capacitors, switches, circuit breakers, fuses, motor controllers, receptacles, attachment plugs, meters, relays, instruments, resistors, generators, motors, lighting fixtures, storage battery .
Class I, Division 1 Class I, Division 2 Class II, Division 1 Class II, Division 2 Class III, Division 1 Class III, Division 2. For definitions of these locations see All applicable requirements in this subpart apply to all hazardous (classified) locations, unless modified by provisions of this section. (b) Electrical. The main developer of motor and generator standards in the United States is the National Electrical Manufacturers Association (NEMA). The primary standard for electric motors in the United States is NEMA MG 1, Motors and Generators. The letter designation in each motor enclosure description is an abbreviation of the enclosure name. scope: This standard applies to electric motors and generators or submersible and nonsubmersible sewage pumps and systems suitable for use in Class I, Division 1, Groups B, C and D, and Class II, Division 1, Groups E, F and G, hazardous (classified) locations as defined by the Canadian Electrical Code, C Part I (CEC), and the National Electrical Code, ANSI/NFPA 70 (NEC). Jun 17, · IEEE Guide for Application of Electric Motors in Class I, Division 2 Hazardous (Classified) Locations Abstract: This guide was developed to assist individuals, organizations, and suppliers with the application of motors in Class I, Division 2 locations, where flammable gases and vapors may occasionally be present.