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UL 2808 OUTLINE - OUTLINE OF INVESTIGATION FOR ENERGY MONITORING CURRENT TRANSFORMERS - ISSUE 3 Organization: UL
Date: 2016-06-10
Description: These requirements also cover ²Service Entrance² enclosed-type current transformers intended for outdoor use.  These current transformers are rated to measure current in a maximum 250 Vac, 600 Vac, or 1000 Vac line-to-line circuits or in a maximum 1500 Vdc circuit.
IEEE C57.13.6 - STANDARD FOR HIGH-ACCURACY INSTRUMENT TRANSFORMERS Organization: IEEE
Date: 2005-09-22
Description: This standard defines one new 0.15 accuracy class for voltage transformers, two new 0.15 accuracy classes for current transformers, two new current transformer burdens, and two new current transformer routine accuracy test methods.
CSA C22.2 NO 66.3 - LOW VOLTAGE TRANSFORMERS - PART 3: CLASS 2 AND CLASS 3 TRANSFORMERS - FIRST EDITION; UPDATE NO. 1: NOVEMBER 2012 Organization: CSA
Date: 2006-04-17
Description: As noted in Low Voltage Transformers – Part 1: General Requirements, UL 5085-1, or CSA C22.2 No. 66.1, Low Voltage Transformers – Part 1: General Requirements, the requirements in Part 3 cover Class 2 transformers for use with Class 2 circuits in accordance with the National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical Code, Part I, CSA C22.1.
NECA NEIS 410 - STANDARD FOR INSTALLING AND MAINTAINING LIQUID-FILLED TRANSFORMERS Organization: NECA
Date: 2013-01-01
Description: Specialty transformers such as control, industrial control, instrument, current, potential, metering, buck-boost transformers, or lighting and ballast transformers 3.
NECA NEIS 409 - STANDARD FOR INSTALLING AND MAINTAINING DRY-TYPE TRANSFORMERS Organization: NECA
Date: 2015-01-01
Description: Liquid-filled transformers. Autotransformers. Current transformers. Control transformers and transformers used with Class 2 and Class 3 circuits.
UL 1562 - UL STANDARD FOR SAFETY TRANSFORMERS, DISTRIBUTION, DRY-TYPE - OVER 600 VOLTS - FOURTH EDITION; REPRINT WITH REVISIONS THROUGH AND INCLUDING OCTOBER 22, 2015 Organization: UL
Date: 2013-01-25
Description: These transformers are intended for installation in accordance with the National Electrical Code, ANSI/NFPA 70. These requirements do not cover the following transformers: a) Instrument transformers b) Step-voltage and induction voltage regulators c) Current regulators d) Arc furnace transformers e) Rectifier transformers f) Specialty transformers (such as rectifier, ignition, gas tube sign transformers, and the like) g) Mining transformers h) Motor-starting reactors and transformers These requirements do not cover transformers under the exclusive control of electrical utilities utilized for communication, metering, generation, control, transformation, transmission, and distribution of electric energy regardless of whether such transformers are located indoors, in buildings and rooms used exclusively by utilities for such purposes; or outdoors on property owned, leased, established rights on private property or on public rights of way (highways, streets, roads, and the like).
IEEE - ANSI C37.47 - HIGH VOLTAGE CURRENT-LIMITING TYPE DISTRIBUTION CLASS FUSES AND FUSE DISCONNECTING SWITCHES Organization: IEEE
Date: 2000-05-03
Description: (Examples - A current-limiting type fuse mounted in a live front pad mounted transformer or in a vault.)
IEEE C62.2 - GUIDE FOR THE APPLICATION OF GAPPED SILICON-CARBIDE SURGE ARRESTERS FOR ALTERNATING CURRENT SYSTEMS Organization: IEEE
Date: 1987-01-01
Description: Information is included in Section 4 on application of arresters for protection of overhead distribution systems, both open-wire and spacer cable; underground system cables; all distribution transformers; and other electric distribution equipment. Step-by-step directions toward proper solutions for various applications are provided.
ISA 60079-5 - EXPLOSIVE ATMOSPHERES – PART 5: EQUIPMENT PROTECTION BY POWDER FILLING “Q” - THIRD EDITION; 12.00.04 Organization: ISA
Date: 2009-07-24
Description: NOTE 1 Electrical equipment and Ex components protected by powder filling "q" may contain electronic circuits, transformers, protection fuses, relays, intrinsically safe electrical apparatus, associated electrical apparatus, switches, etc.
ASTM D901 - STANDARD METHODS OF TESTING ASKARELS Organization: ASTM
Date: 1991-08-15
Description: NOTE 2--Methods for handling and disposal of askarels and askarel-impregnated materials are given in a recent ANSI Committee C-107 Guide, Guidelines for Handling and Disposal of Capacitor and Transformer-Grade Askarels Containing Polychlorinated Biphenyls.
CSA C22.2 NO 144.1 - GROUND-FAULT CIRCUIT INTERRUPTERS - SECOND EDITION Organization: CSA
Date: 2016-01-01
Description: These requirements do not cover ground-fault circuit-interrupters intended for use in circuits served by a transformer having windings wholly insulated from each other.
UL 943 - UL STANDARD FOR SAFETY GROUND-FAULT CIRCUIT-INTERRUPTERS - FIFTH EDITION Organization: UL
Date: 2016-05-17
Description: These requirements do not cover ground-fault circuit-interrupters intended for use in circuits served by a transformer having windings wholly insulated from each other.
CSA C22.2 NO 184.1 - SOLID-STATE DIMMING CONTROLS - SECOND EDITION Organization: CSA
Date: 2015-01-01
Description: These requirements cover permanently installed devices, hereafter referred to as dimmers, that employ a dimming function intended for control of lighting loads of the magnetic ballast, transformer, electronic ballast, self-ballasted lamp, tungsten-filament type, or light-emitting-diode (LED), and are intended to be installed in a wallbox or are provided with an enclosure for flush or surface mounting in accordance with the Canadian Electric Code, Part 1 (CEC), and the National Electrical Code (NEC), ANSI/NFPA 70.
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.
NEMA SSL 7A - PHASE-CUT DIMMING FOR SOLID STATE LIGHTING: BASIC COMPATIBILITY Organization: NEMA
Date: 2015-01-01
Description: NOTE—Any requirement for compliance to this standard does not supersede applicable international or local regulation. 1 Through an ANSI/IEC base or a non-ANSI/IEC interface.  
IEEE C57.21 - STANDARD REQUIREMENTS, TERMINOLOGY, AND TEST CODE FOR SHUNT REACTORS RATED OVER 500 KVA Organization: IEEE
Date: 2008-03-27
Description: This standard does not apply to other devices such as1) Shunt reactors, 500 kVA and smaller2) Current-limiting reactors (see ANSI C57.16-1958 [1]1)3) Arc-suppression coils4) Neutral-grounding devices (see IEEE Std 32-1972 [22])5) Saturable reactors6) Line-resonant reactors7) Filter reactors
UL 61010A-2-010 - UL STANDARD FOR SAFETY ELECTRICAL EQUIPMENT FOR LABORATORY USE; PART 2: PARTICULAR REQUIREMENTS FOR LABORATORY EQUIPMENT FOR THE HEATING OF MATERIALS - FIRST EDITION Organization: UL
Date: 2002-03-13
Description: Equipment excluded from scope This standard does not apply to equipment within the scope of a) IEC 60065 (Safety requirements for audio, video and similar electronic apparatus); b) IEC 60204 (Controls for electrical machines); c) IEC 60335 (Safety of household and similar electrical appliances); d) IEC 60364 (Electrical installations of buildings); e) IEC 60439-1 (Low-voltage switchgear and controlgear assemblies); f) IEC 60521 (Class 0,5; 1 and 2 alternating current watthour meters); g) IEC 60601 (Medical electrical equipment); h) IEC 60950 (Safety of information technology equipment including electrical business equipment, except as specified in 1.1.3); i) IEC 61558 (Power transformers, power supply units and similar). - equipment for the heating and ventilation of laboratories; - sterilizing equipment; - heating equipment which the OPERATOR is intended to enter, and which is large enough for the OPERATOR to remain inside with the door or doors closed.
UL - 61010-2-010 BULLETIN - UL STANDARD FOR SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT FOR MEASUREMENT, CONTROL, AND LABORATORY USE – PART 2-010: PARTICULAR REQUIREMENTS FOR LABORATORY EQUIPMENT FOR THE HEATING OF MATERIALS - COMMENTS DUE: DECEMBER 22, 2014 Organization: UL
Date: 2014-11-07
Description: Equipment excluded from scope This standard does not apply to equipment within the scope of a) IEC 60065 (Safety requirements for audio, video and similar electronic apparatus); b) IEC 60204 (Controls for electrical machines); c) IEC 60335 (Safety of household and similar electrical appliances); d) IEC 60364 (Electrical installations of buildings); e) IEC 60439-1 (Low-voltage switchgear and controlgear assemblies); f) IEC 60521 (Class 0,5; 1 and 2 alternating current watthour meters); g) IEC 60601 (Medical electrical equipment); h) IEC 60950 (Safety of information technology equipment including electrical business equipment, except as specified in 1.1.3); i) IEC 61558 (Power transformers, power supply units and similar). Computing equipment This standard applies only to computers, processors, etc. which form part of equipment within the scope of this standard or are designed for use exclusively with the equipment.

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