1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2353 Single- and Multi-Layer Insulated Winding WireUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHO
2、RIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Single- and Multi-Layer Insulated Winding Wire, UL 2353 Second Edition, Dated May 14, 2012 Summary of Topics This revision of ANSI/UL 2353 includes the following changes: Downgrade of the testing vol
3、tage of the Spark Test in Section 14 Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. Changes in requirements are marked with a vertical line in the margin and are followed by an effective date note indicating the
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9、ct, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the note following the affected item. The prior text for requirements that have been revised and that have a future effective date are located after the Stand
10、ard, and are preceded by a SUPERSEDED REQUIREMENTS notice. SEPTEMBER 5, 2013 UL 2353 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SEPTEMBER 5, 2013 UL 2353 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPR
11、ODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 14, 2012 (Title Page Reprinted: September 5, 2013) 1 UL 2353 Standard for Safety for Single- and Multi-Layer Insulated Winding Wire First Edition July, 2004 Second Edition May 14, 2012 This ANSI/UL Standard for Safety consists of the Second Edi
12、tion including revisions through September 5, 2013. The most recent designation of ANSI/UL 2353 as an American National Standard (ANSI) occurred on September 3, 2013. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. Comments
13、or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic
14、 copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2013 UNDERWRITERS LABORATORIES INC. ANSI/UL 2353-2013UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FU
15、RTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 14, 2012 SINGLE- AND MULTI-LAYER INSULATED WINDING WIRE - UL 2353 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .4 2 Gene
16、ral 4 2.1 Units of measurement .4 2.2 Undated references .5 3 Glossary .5 CONSTRUCTION 4 Conductor Dimensions .6 5 Number of Layers .8 6 Thickness of Insulation 9 PERFORMANCE 7 General .11 8 Electric Strength Test Straight Sample 11 9 Electrical Strength Test Twisted Sample 12 10 Flexibility and Adh
17、erence Test 14 11 Retention of Electric Strength After Bending Test .15 12 Heat Shock Test 16 13 Infrared Analysis Test .17 MANUFACTURING AND PRODUCTION TESTS 14 Spark Test .17 15 Sampling Test 18 MARKINGS 16 Details .18 MAY 14, 2012 SINGLE- AND MULTI-LAYER INSULATED WINDING WIRE - UL 2353 3UL COPYR
18、IGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 This Standard contains requirements for winding wire used in transformers without interleaved insulation; and solid insulation and insulated winding wire without interleaved in
19、sulation intended for use in accordance with the following standards: a) Standard for Information Technology Equipment Safety Part 1: General Requirements, UL 60950-1; or the b) Standard for Medical Electrical Equipment, Part 1: General Requirements for Safety, UL 60601-1. c) Safety of power transfo
20、rmers, power supplies, reactors and similar products Part 1: General requirements and tests, IEC 61558-1. These requirements are not intended to prohibit use of this type of winding wire in equipment covered by the scope of other Standards when these requirements are determined to be compatible with
21、 those Standards. 1.1 revised May 14, 2012 1.2 These requirements cover winding wires with a diameter between 0.05 mm (0.002 inch) and 5.0 mm (0.2 inch). 1.3 The winding wire covered by this Standard shall also comply with the infrared analysis requirements in the Standard for Polymeric Materials Sh
22、ort Term Property Evaluations, UL 746A. 1.4 This Standard does not cover solvent-based enamel coated magnet wire. See the Standard for Systems of Insulating Materials General, UL 1446. If the desired useage of the single- and multi-layer Insulated winding wire is above Class 105 (A), additional test
23、ing of the insulation system would be required in accordance with UL 1446. 2 General 2.1 Units of measurement 2.1.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. MAY 14, 2012 SINGLE- AND MULTI-LAYER INSULATED WINDING WIRE - U
24、L 2353 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.2 Undated references 2.2.1 Any undated reference to a code or standard appearing in the requirements of this Standard shall be interpreted as referring to the latest edition of that c
25、ode or standard. 3 Glossary 3.1 In the text of this standard, the letters ITE refer to information technology equipment. For the purpose of this Standard, the following denitions apply. See the following standards for additional denitions: a) Standard for Information Technology Equipment Safety Part
26、 1: General Requirements, UL 60950-1; or the b) Standard for Medical Electrical Equipment, Part 1: General Requirements for Safety, UL 60601-1. c) Safety of power transformers, power supplies, reactors and similar products Part 1: General requirements and tests, IEC 61558-1. 3.1 revised May 14, 2012
27、 3.2 BASIC INSULATION Insulation that provides basic protection against the risk of electric shock. 3.3 CLEARANCE The shortest distance between two conductive parts measured through air. 3.4 CREEPAGE DISTANCE The shortest path between two conductive parts measured along the surface of the insulation
28、. 3.5 REINFORCED INSULATION A single insulation that provides protection against risk of electric shock equivalent to double insulation under the conditions specied in the following standards: a) Standard for Information Technology Equipment Safety Part 1: General Requirements, UL 60950-1; or the b)
29、 Standard for Medical Electrical Equipment, Part 1: General Requirements for Safety, UL 60601-1. 3.5 revised May 14, 2012 Reinforced insulation is not required to be provided in one homogeneous piece. It may consist of several layers that cannot be tested as supplementary or basic insulation. 3.6 RO
30、UTINE TEST A test to which each individual sample is subjected during or after manufacture to verify that the sample complies with certain criteria. 3.7 SAMPLING TESTS A test on a number of samples taken at random from a batch of winding wire. 3.8 SUPPLEMENTARY INSULATION Independent insulation appl
31、ied in addition to basic insulation in order to reduce the risk of electric shock in the event of a failure of the basic insulation. MAY 14, 2012 SINGLE- AND MULTI-LAYER INSULATED WINDING WIRE - UL 2353 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSI
32、ON FROM UL CONSTRUCTION 4 Conductor Dimensions 4.1 When determining the conductor dimensions, tin or any other metal on the conductor is allowed to remain on the conductor and included in the measurement. Solvent based enamels are to be removed prior to any measurements. Measurements of the diameter
33、 of a solid conductor are to be made over such coating by means of a machinists micrometer caliper having at surfaces both on the anvil and on the end of the spindle and calibrated to read directly to at least 0.001 inch or 0.01 mm, with each division of a width that facilitates estimation of each m
34、easurement to 0.0001 inch or 0.001 mm. The maximum and minimum diameters at a given point on the conductor are each to be recorded to the nearest 0.0001 inch or 0.001 mm, added together, and divided by 2 without any rounding of the sum or resulting average. 4.2 The conductor-size range shall be as s
35、pecied in Conductor dimensions, Table 4.1 for wires constructed to the customary US AWG trade sizes, or Table 4.2 for wires constructed to the customary metric trade sizes and any other non-customary size. The unrounded average of the two micrometer readings is therefore to be compared directly with
36、 the minimum in the table for the purpose of determining whether the solid conductor does or does not comply with the diameter requirement. 4.2 revised May 14, 2012 4.3 The total cross sectional area of the conductors in a stranded wire shall be at least equivalent to the minimum cross sectional are
37、a of the equivalent solid wire as noted in Table 4.1 for customary US AWG trade sizes, or calculated using the tolerances specied in Table 4.2 for wires constructed to the customary metric trade sizes and any other non-customary size. The unrounded average of two micrometer readings taken on at leas
38、t ve strands shall be used to calculate the total cross sectional area and compared directly with the minimum in the table for the purpose of determining whether the stranded wire does or does not comply with the requirement. 4.3 added May 14, 2012 Table 4.1 Conductor dimensions for customary US AWG
39、 trade sizes Table 4.1 revised May 14, 2012 Trade size, Nominal conductor OD, Minimum tolerance, Minimum cross sectional area AWG mm mm mm 2 44 0.051 0.003 0.00181 43 0.056 0.003 0.00221 42 0.064 0.003 0.00292 41 0.071 0.003 0.00363 40 0.079 0.003 0.00454 39 0.089 0.003 0.00581 38 0.102 0.003 0.0077
40、0 37 0.114 0.003 0.00968 36 0.127 0.003 0.0121 35 0.142 0.003 0.0152 34 0.160 0.003 0.0194 33 0.180 0.003 0.0246 32 0.203 0.003 0.0314 31 0.226 0.003 0.0391 30 0.254 0.003 0.0495 29 0.287 0.003 0.0633 MAY 14, 2012 SINGLE- AND MULTI-LAYER INSULATED WINDING WIRE - UL 2353 6 Table 4.1 Continued on Next
41、 PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Table 4.1 Continued Trade size, Nominal conductor OD, Minimum tolerance, Minimum cross sectional area AWG mm mm mm 2 28 0.320 0.003 0.0789 27 0.361 0.003 0.101 26 0.404 0.005 0.125 25 0.45
42、5 0.005 0.159 24 0.511 0.006 0.200 23 0.574 0.006 0.253 22 0.643 0.008 0.317 21 0.724 0.008 0.403 20 0.813 0.008 0.509 19 0.912 0.011 0.638 18 1.02 0.011 0.800 17 1.15 0.013 1.02 16 1.29 0.013 1.28 15 1.45 0.015 1.62 14 1.63 0.015 2.05 13 1.83 0.018 2.58 12 2.05 0.020 3.24 11 2.30 0.023 4.07 10 2.59
43、 0.025 5.17 9 2.91 0.028 6.52 8 3.26 0.033 8.18 7 3.67 0.035 10.38 6 4.11 0.041 13.00 5 4.62 0.045 16.44 4 5.19 0.045 20.79 Table 4.2 Solid conductor diameters for non-AWG sizes Table 4.2 revised May 14, 2012 Nominal conductor OD, mm Minimum tolerance, mm 0.050 0.403 0.003 0.404 0.510 0.005 0.511 0.
44、642 0.006 0.623 0.911 0.008 0.912 1.150 0.011 1.151 1.449 0.013 1.450 1.828 0.015 1.829 2.051 0.018 2.052 2.303 0.020 2.304 2.587 0.023 2.588 2.905 0.025 2.906 3.263 0.028 3.264 3.664 0.033 3.665 4.114 0.035 4.115 4.619 0.041 4.620 5.000 0.045 MAY 14, 2012 SINGLE- AND MULTI-LAYER INSULATED WINDING W
45、IRE - UL 2353 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5 Number of Layers 5.1 Transformer winding wire with extruded or spirally wrapped insulation where the layers can be individually tested for electric strength shall comply with o
46、ne of the following constructional requirements: a) Basic insulation consisting of at least one layer of material, which complies with the Electric Strength Test Straight Sample, Section 8, for basic insulation; b) Supplementary insulation consisting of at least two layers of material, each of which
47、 complies with the Electric Strength Test Straight Sample, Section 8, for supplementary insulation; c) Supplementary insulation consisting of three layers of material for which all combinations of the two layers together complies with the Electric Strength Test Straight Sample, Section 8, for supple
48、mentary insulation; d) Reinforced insulation, intended for use in Information Technology equipment, consisting of at least two layers of material, each of which complies with the Electric Strength Test Straight Sample, Section 8, for reinforced insulation; or e) Reinforced insulation consisting of t
49、hree layers of materials for which all combinations of two layers together complies with the Electric Strength Test Straight Sample, Section 8, for reinforced insulation. 5.2 Transformer winding wire with extruded or spirally wrapped insulation where the layers cannot be individually tested and only the nished wire can be tested, shall comply with one of the following constructional requirements: a) Basic insulation: one layer extruded, or wra
