Transcription of Chapter 4 NEC & NEMA Standards 1
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Chapter 4 NEC & NEMA Standards 1 This section lists excerpts from industry, national, and international Standards . The excerpts are for illustration and educational purposes. There are often several related tables and information for other configurations and applications. In addition, the Standards have added detail and information that applies to all these excerpts. Therefore, any application should refer to the standard, rather than the excerpts. Standard Organization Application National Electrical Code (NEC) NFPA 70-2005 National Fire Protection Association, Batterymarch Park, Quincy, MA Electrical installations in occupancies National Electrical Safety Code (NESC) IEEE C2-2002 Institute of Electrical & Electronics Engineers, New York, NewYork Electrical supply stations, overhead, and underground lines.
Table 430.250 Full-Load Current, Three-Phase Alternating-Current Motors Induction-Type Squirrel Cage and Wound Rotor (Amperes) Synchronous-Type Unity Power Factor* (Amperes) Horse-power 115 Volts 200 Volts 208 Volts 230 Volts 460 Volts 575 Volts 2300 Volts 230 Volts 460 Volts 575 Volts 2300 Volts ½ 4.4 2.5 2.4 2.2 1.1 0.9 — — — — —
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