IEEE Class 1E Motors
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Ellis & Watts offers a line of Class 1E nuclear qualified motors designed for inside containment and loss-of-coolant accident (LOCA) and/or high energy line break (HELB) Design Basis Events.
Standard features - CLICK TO SEE FULL LIST
- Non-hygroscopic Class H insulation system
- Bearing minimum L-10 life of 100,000 hours
- Nuclear grade grease and paint system
- Radiation proven at 3×107 Rads
Optional features - CLICK TO SEE FULL LIST
- Capacities from 1 to 150 Hp
- Single- and two-speed designs with multiple rpm options
- Belt- or direct-drive applications
- NEMA TEFC and TEAO designs
Qualification test performance - CLICK TO SEE FULL LIST
- Insulation system qualified at 40+ years per IEEE 117
- Successful completion of UL 1446 cold shock test
- 40+ year life based on thermal aging test per IEEE 334 Section 9
- After aging, motor subjected to mechanical vibration, irradiation, and cyclic operation and then exposed to simulated earthquakes and high energy line break (HELB) environment while operating at full load
- Finally, motor operated under full load for a 100-day post accident endurance test
Meets the following standards - CLICK TO SEE FULL LIST
- IEEE 323 Standard for qualifying Class 1E Equipment for Nuclear Power Generating Stations
- IEEE 334 Standard for Type Test of Continuous Duty Class 1E Equipment for Nuclear Power Generating Stations
- IEEE 344 Recommended Practice for the Seismic Qualification of Class 1E Equipment for Nuclear Power Generating Stations
- IEEE 383 Standard for Qualifying Electric Cables and Splices for Nuclear Facilities
- NEMA MG-1
- ASME AG-1 Code on Nuclear Air and Gas Treatment
Sample Projects - CLICK TO SEE FULL LIST
- Lungmen NPP – Taiwan
- Wolsong NPP – South Korea
