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IEEE 357 - GUIDE FOR PROTECTIVE RELAYING OF UTILITY- CONSUMER INTERCONNECTIONS Organization: IEEE
Date: 1973-05-24
Description: Reference material pertaining to lightning protection may be found in (1) IEEE Std 28-1972, Surge Arresters for AC Power Circuits (ANSI C62.1-1971) (2) A N S I C62.2-1969, Guide for Application of Valve-Type Arresters for A C Systems This guide does not establish standards or recommendations with regard to personnel safety at the interconnection area with respect to ground-voltage-rise, transferred-potential, step-potential, and touch-potential considerations for faults on the utility system or on the consumer's system.
UL 977 - UL STANDARD FOR SAFETY FUSED POWER-CIRCUIT DEVICES - FIFTH EDITION; REPRINT WITH REVISIONS THROUGH AND INCLUDING JULY 29, 2016 Organization: UL
Date: 2012-04-30
Description:   These requirements do not apply to low-voltage AC power circuit protectors as covered by the Standard for Low Voltage AC Power Circuit Protectors Used in Enclosures, ANSI/IEEE C37.29, or to low-voltage AC integrally fused power circuit breakers as covered by the Standard for Low-Voltage AC Power Circuit Breakers Used in Enclosures, ANSI/IEEE C37.13.
UL 1008A OUTLINE - OUTLINE OF INVESTIGATION FOR TRANSFER SWITCH EQUIPMENT, OVER 600 VOLTS - ISSUE 1 Organization: UL
Date: 2006-08-02
Description: These requirements cover transfer switches together with their associated control devices including voltage sensing relays, frequency sensing relays, time delay relays, and the like. An automatic transfer switch as covered by these requirements is a device that automatically transfers a common load from a normal supply to an alternate supply in the event of failure of the normal supply, and automatically returns the load to the normal supply when the normal supply is restored.
UL - 977 BULLETIN - UL STANDARD FOR SAFETY FUSED POWER-CIRCUIT DEVICES - COMMENTS DUE: JANUARY 23, 2012 Organization: UL
Date: 2011-12-23
Description: These requirements do not apply to low-voltage AC power circuit protectors as covered by the Standard for Low Voltage AC Power Circuit Protectors Used in Enclosures, ANSI/IEEE C37.29, or to low-voltage AC integrally fused power circuit breakers as covered by the Standard for Low-Voltage AC Power Circuit Breakers Used in Enclosures, ANSI/IEEE C37.13.
CSA C22.2 NO 254 - MOTOR CONTROL CENTRES - FIRST EDITION; UPDATE NO. 1: AUGUST 2006; UPDATE NO. 2: JULY 2011 Organization: CSA
Date: 2005-01-01
Description:   Equipment  A motor control centre can contain, but is not limited to, any combination of equipment such as the following: (a) full-voltage reversing or non-reversing combination motor control units; (b) full-voltage multispeed combination motor control units; (c) reduced-voltage part-winding, wye-delta or auto-transformer combination motor control units; (d) solid-state industrial controllers, such as adjustable-speed drives, programmable controllers, protective relays, and the like; (e) lighting or distribution panelboards; (f) feeder-tap units; (g) incoming-line equipment, such as main lugs, fusible switch, isolation switch, or circuit-breaker; (h) control or lighting transformers; (i) special equipment assemblies; (j) combination contactor units.
UL 845 - UL STANDARD FOR SAFETY MOTOR CONTROL CENTERS - FIFTH EDITION; REPRINT WITH REVISIONS THROUGH AND INCLUDING JULY 15, 2011 Organization: UL
Date: 2005-08-31
Description: EquipmentA motor control center can contain, but is not limited to, any combination of equipment such as the following:a) full-voltage reversing or non-reversing combination motor control units;b) full-voltage multispeed combination motor control units;c) reduced-voltage part-winding, wye-delta or auto-transformer combination motor control units;d) solid-state industrial controllers, such as adjustable-speed drives, programmable controllers, protective relays, and the like;e) lighting or distribution panelboards;f) feeder-tap units;g) incoming-line equipment, such as main lugs, fusible switch, isolation switch, or circuit-breaker;h) control or lighting transformers;i) special equipment assemblies;j) combination contactor units.

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