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CSA C22.2 NO 66.1 - LOW VOLTAGE TRANSFORMERS - PART 1: GENERAL REQUIREMENTS - FIRST EDITION; UPDATE NO. 1: NOVEMBER 2012; UPDATE NO. 2: DECEMBER 2013 Organization: CSA
Date: 2006-01-01
Description: Preface This is the harmonized CSA Group and UL standard for low voltage transformers. It is the first edition of CSA C22.2 No. 66.1 and the first edition of UL 5085-1.
CSA C22.2 NO 66.2 - LOW VOLTAGE TRANSFORMERS - PART 2: GENERAL PURPOSE TRANSFORMERS - FIRST EDITION; UPDATE NO. 1: NOVEMBER 2012 Organization: CSA
Date: 2006-01-01
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 of Part 2 cover: a) Air-cooled transformers and reactors for general use; b) Autotransformers; c) Ferroresonant transformers; d) Cord-connected transformers; and e) Transformers incorporating overcurrent or over-temperature protective devices, transient voltage surge protectors, or capacitors.
VA 26 22 00 - LOW-VOLTAGE TRANSFORMERS Organization: VA
Date: 2010-09-01
Description: DESCRIPTION This section specifies the furnishing, installation, and connection of dry-type general-purpose transformers.
UL 5085-2 - UL STANDARD FOR SAFETY LOW VOLTAGE TRANSFORMERS – PART 2: GENERAL PURPOSE TRANSFORMERS - FIRST EDITION; REPRINT WITH REVISIONS THROUGH AND INCLUDING NOVEMBER 29, 2017 Organization: UL
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 of Part 2 cover: a) Air-cooled transformers and reactors for general use; b) Autotransformers; c) Ferroresonant transformers; d) Cord-connected transformers; and e) Transformers incorporating overcurrent or over-temperature protective devices, transient voltage surge protectors, or capacitors.
UL 5085-3 - UL STANDARD FOR SAFETY LOW VOLTAGE TRANSFORMERS – PART 3: CLASS 2 AND CLASS 3 TRANSFORMERS - FIRST EDITION; REPRINT WITH REVISIONS THROUGH AND INCLUDING NOVEMBER 29, 2017 Organization: UL
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.
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.
UL 5085-1 - UL STANDARD FOR SAFETY LOW VOLTAGE TRANSFORMERS - PART 1: GENERAL REQUIREMENTS - FIRST EDITION; REPRINT WITH REVISIONS THROUGH AND INCLUDING JANUARY 17, 2018 Organization: UL
Date: 2006-04-17
Description: The National Electrical Code, ANSI/NFPA 70, defines low voltage as any voltage up to 600 V, nominal. Therefore, low voltage transformers intended for use in Canada may be rated above 600 V up to 750 V.
DSF/FPREN 61869-11 - INSTRUMENT TRANSFORMERS – PART 11: ADDITIONAL REQUIREMENTS FOR LOW-POWER PASSIVE VOLTAGE TRANSFORMERS Organization: DS
Description: This Standard covers low-power passive voltage transformers used for measurement or protection and low-power passive voltage transformers used for both measurement and protection. Low-power passive voltage transformers are based on the voltage divider principle.
IEC 61869-11 - INSTRUMENT TRANSFORMERS – PART 11: ADDITIONAL REQUIREMENTS FOR LOW-POWER PASSIVE VOLTAGE TRANSFORMERS - EDITION 1.0 Organization: IEC
Date: 2017-12-01
Description: The secondary voltage of the low-power passive voltage transformer is proportional to the primary voltage. Derivative output signals are not within the scope of this document.
GSFC-S-311-320/2 REV A - HVU1 LOW VOLTAGE TRANSFORMER, DETAIL N SPECIFICATION FOR A Organization: GSFC
Date: 1996-02-16
UL - 5085-3 BULLETIN - UL STANDARD FOR SAFETY LOW VOLTAGE TRANSFORMERS - PART 3: CLASS 2 AND CLASS 3 TRANSFORMERS - COMMENTS DUE: NOVEMBER 27, 2017 Organization: UL
Date: 2017-10-13
UL - 5085-2 BULLETIN - UL STANDARD FOR SAFETY LOW VOLTAGE TRANSFORMERS - PART 2: GENERAL PURPOSE TRANSFORMERS - COMMENTS DUE: NOVEMBER 27, 2017 Organization: UL
Date: 2017-10-13
UL - 5085-1 BULLETIN - UL STANDARD FOR SAFETY LOW VOLTAGE TRANSFORMERS - PART 1: GENERAL REQUIREMENTS - COMMENTS DUE: JANUARY 8, 2018 Organization: UL
Date: 2017-11-24
NR - RT/E/P/27145 ISSUE 1 - PROCEDURE FOR FITTING & REMOVAL OF OVERHEAD LINE CONNECTIONS TO/FROM HIGH/LOW VOLTAGE TERMINALS ON TRANSFORMERS (AKA NR/SP/ELP/27145) Organization: NR
Date: 2004-12-01
Description: Introduction This procedure covers the fitting and removal of OHL connections to or from high or low voltage terminals or transformers. This procedure applies to all structure mounted 25kV and 6.25kV Booster Transformers and all structure mounted Auxiliary Supply Transformers, firstly with threaded stems at least 63mm (2.5") long and secondly with threaded stems less than 63mm (2.5") long.
AENOR - UNE 20138-2 - THREE-PHASE LOW-VOLTAGE DISTRIBUTION TRANSFORMERS, 50 HZ, FROM 25 TO 2 500 KVA. LOW VOLTAGE TWO VOLTAGE TRANSFORMER Organization: AENOR
Date: 1985-12-15
UL - 5087 BULLETIN - UL PROPOSED FIRST EDITION OF THE STANDARD FOR LOW VOLTAGE TRANSFORMERS - PART 3: CLASS 2 AND CLASS 3 TRANSFORMERS Organization: UL
Date: 2005-10-28
UL - 5086 BULLETIN - UL PROPOSED FIRST EDITION OF THE STANDARD FOR LOW VOLTAGE TRANSFORMERS - PART 2: GENERAL PURPOSE TRANSFORMERS, UL 5085-2 Organization: UL
Date: 2005-10-28
UL - 5085-1 CRD - UL STANDARD FOR SAFETY LOW VOLTAGE TRANSFORMERS - PART 1: GENERAL REQUIREMENTS - SECTION / PARAGRAPH REFERENCE: NEW SECTION 11.5 SUBJECT: DOUBLE INSULATED - EDITION 1: APRIL 17, 2006 Organization: UL
Date: 2012-10-23
UL - 5085 BULLETIN - UL PUBLICATION OF THE FIRST EDITION OF THE STANDARD FOR SAFETY FOR LOW VOLTAGE TRANSFORMERS – PART 1: GENERAL REQUIREMENTS Organization: UL
Date: 2006-04-17
IEEE C62.34 - TEST METHODS AND PERFORMANCE OF LOW-VOLTAGE (1000 V RMS OR LESS) SURGE PROTECTIVE DEVICES USED ON SECONDARY DISTRIBUTION SYSTEMS (BETWEEN THE TRANSFORMER LOW-VOLTAGE TERMINALS AND THE LINE SIDE OF THE SERVICE EQUIPMENT) Organization: IEEE
Date: 2017-09-28
Description: This standard applies to surge protective devices designed for application on the low-voltage supply mains (1000 V root-mean-squared [rms] and less, frequency between 48 Hz and 62 Hz) and intended to be connected at locations between, and including, the secondary terminals of the distribution transformer and the line side of the service equipment.

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