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 Coordination of Industrial and Commercial Power Systems, IEEE Standard 242-1986,345 East 47th Street,
New York, NY 10017
Institute of Electrical and Electronics Engineers (IEEE), IEEE Recommended Practice on Surge Voltages
in Low Voltage AC Power Circuits, IEEE Standard C62.41-1991, 345 East 47th Street, New York, NY 10017
National Electrical Manufacturers Association (NEMA), Enclosures for Electrical Equipment, NEMA
Standard 250-1991, 2101 L Street, NW, Washington, DC 20037
National Electrical Manufacturers Association (NEMA), Guidelines for Inspectionn and Preventative
Maintenance of Molded Case Circuit Breakers Used in Commercial and Industrial Applications, NEMA
Standard AB 4-1991, 2101 L Street, NW, Washington, DC 20037
National Fire Protection Association (NFPA), National Electrical Code, NFPA publication #70, 1990, 1
Batterymarch Park, Quincy, MA 02269
National Fire Protection Association (NFPA), Recommended Practice for Electrical Equipment Mainte-
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nance, NFPA publication #70B, 1990, 1 Batterymarch Park, Quincy, MA 02269
National Fire Protection Association (NFPA), Installation, Maintenance, and Use of Protective Signaling
Systems, NFPA publication #72, 1990, 1 Batteryrmarch Park, Quincy, MA 02269
National Fire Protection Association (NFPA), Fire Tests of Building Construction and Materials, NFPA
publication #251, 1990, 1 Batterymarch Park Quincy, MA 02269
Underwriters Laboratories (UL), UL Standard for Safety: Molded Case Circuit Breakers and Circuit
Breaker Enclosures, UL #489-1991, 207 East Ohio Street, Chicago, IL 60611
A-2
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