1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2353 Single- and Multi-Layer Insulated Winding Wire STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTE
2、D MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Single- and Multi-Layer Insulated Winding Wire, UL 2353 Third Edition, Dated October 10, 2016 Summary of Topics The third edition of ANSI/UL 2353 has been issued and reects the la
3、test approval date as an American National Standard and includes the following changes: Revision of requirements to specify solvent-based enamel. Revision of requirements for taped wrapped wire. Revision of requirements to incorporate fully insulated wire (FIW). The new and revised requirements are
4、substantially in accordance with Proposal(s) on this subject dated March 25, 2016 and August 26, 2016. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwi
5、se without prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, in
6、direct or similar damages, including loss of prots, lost savings, loss of data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for
7、any damage ever exceed the price paid for this Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable
8、attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. OCTOBER 10, 2016 UL 2353 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 10, 201
9、6 UL 2353 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 10, 2016 1 UL 2353 Standard for Safety for Single- and Multi-Layer Insulated Winding Wire First Edition July, 2004 Second Edition May, 2012 Third Editi
10、on October 10, 2016 This ANSI/UL Standard for Safety consists of the Third Edition. The most recent designation of ANSI/UL 2353 as an American National Standard (ANSI) occurred on October 10, 2016. ANSI approval for a standard does not include the Cover Page, Transmittal Pages and Title Page. Commen
11、ts 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 https:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electr
12、onic 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 2016 UNDERWRITERS LABORATORIES INC. ANSI/UL 2353-2016UL COPYRIGHTED MATERIAL NOT AUTHORIZED FO
13、R FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 10, 2016 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 .
14、4 2 General 4 2.1 Units of measurement .4 2.2 Undated references .5 3 Glossary .5 CONSTRUCTION 4 Conductor Dimensions .6 4.1 Single and multi layer insulated wire 6 4.2 Fully insulated wire (FIW) 8 5 Number of Layers .8 5.1 Single and multi layer insulated wire 8 5.2 Fully insulated wire (FIW) 9 6 T
15、hickness of Insulation 9 PERFORMANCE 7 General .13 8 Electric Strength Test Straight Sample 13 9 Electrical Strength Test Twisted Sample 14 10 Flexibility and Adherence Test 15 11 Retention of Electric Strength After Bending Test .16 12 Heat Shock Test 17 13 Infrared Analysis Test .18 MANUFACTURING
16、AND PRODUCTION TESTS 14 Spark Test .18 15 Sampling Test 18 MARKINGS 16 Details .19 OCTOBER 10, 2016 SINGLE- AND MULTI-LAYER INSULATED WINDING WIRE - UL 2353 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 This Stand
17、ard contains requirements for single and multi layer insulated winding wire used in transformers without interleaved insulation; and solid insulation and insulated winding wire without interleaved insulation intended for use in accordance with the Standard for Information Technology Equipment Safety
18、 Part 1: General Requirements, UL 60950-1, the Standard for Medical Electrical Equipment, Part 1: General Requirements for Safety, UL 60601-1, or the Safety of Power Transformers, Power Supplies, Reactors and Similar Products Part 1: General Requirements and Tests, IEC 61558-1. These requirements ar
19、e 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 those standards. 1.2 This Standard also contains requirements for enamelled Fully-Insulated Wire (FIW) that are deemed suitabl
20、e for use in end-products standards. The enamelled winding wire shall be a designated NEMA Type MW 85 as specied in the Standard for Magnet Wire, NEMA MW 1000. 1.3 These requirements cover winding wires with a diameter between 0.05 mm (0.002 in) and 5.0 mm (0.2 in) and MW 85 solvent-based enamel coa
21、ted winding wires with a diameter between 0.040 mm (0.0016 in) and 1.60 mm (0.06 in). 1.4 The winding wire covered by this Standard shall also comply with the infrared analysis requirements in the Standard for Polymeric Materials Short Term Property Evaluations, UL 746A. 1.5 This Standard does not c
22、over solvent-based enamel coated magnet wire unless as specied in 1.2. See the Standard for Systems of Insulating Materials General, UL 1446. If the desired usage of the single- and multi-layer Insulated winding wire is above Class 105 (A), additional testing of the insulation system would be requir
23、ed 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. OCTOBER 10, 2016 SINGLE- AND MULTI-LAYER INSULATED WINDING WIRE - UL 2353 4UL COPYRIGHTED MATERIAL NOT AUTH
24、ORIZED 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 code or standard. 3 Glossary 3.1 In the t
25、ext 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) The Standard for Information Technology Equipment Safety Part 1: General Requirements, UL 60950-1
26、; b) The Standard for Medical Electrical Equipment, Part 1: General Requirements for Safety, UL 60601-1; or the c) The Safety of Power Transformers, Power Supplies, Reactors and Similar Products Part 1: General Requirements and Tests, IEC 61558-1. 3.2 BASIC INSULATION Insulation that provides basic
27、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. 3.5 INSULATING LAYER A single, concentric thickness
28、 of material that is detectable with an optical or mechanical measuring device. Enamel, bond coats, etc. are not considered insulating layers. See 1.2. 3.6 REINFORCED INSULATION A single insulation that provides protection against risk of electric shock equivalent to double insulation under the cond
29、itions specied in the Standard for Information Technology Equipment Safety Part 1: General Requirements, UL 60950-1, or the Standard for Medical Electrical Equipment, Part 1: General Requirements for Safety, UL 60601-1. Reinforced insulation is not required to be provided in one homogeneous piece. I
30、t may consist of several layers that cannot be tested as supplementary or basic insulation. 3.7 ROUTINE TEST A test to which each individual sample is subjected during or after manufacture to verify that the sample complies with certain criteria. 3.8 SAMPLING TESTS A test on a number of samples take
31、n at random from a batch of winding wire. 3.9 SEPARABLE LAYERS A construction that includes layers of insulation that may be separated in a non-destructive manner. 3.10 SUPPLEMENTARY INSULATION Independent insulation applied in addition to basic insulation in order to reduce the risk of electric sho
32、ck in the event of a failure of the basic insulation. OCTOBER 10, 2016 SINGLE- AND MULTI-LAYER INSULATED WINDING WIRE - UL 2353 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONSTRUCTION 4 Conductor Dimensions 4.1 Single and multi layer i
33、nsulated wire 4.1.1 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 of a solid conductor are to be
34、 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 0.01 mm or 0.001 in, with each division of a width that facilitates estimation of each measurement to 0.001 mm or 0.0001
35、in. The maximum and minimum diameters at a given point on the conductor are each to be recorded to the nearest 0.001 mm or 0.0001 in, added together, and divided by 2 without any rounding of the sum or resulting average. 4.1.2 The conductor-size range shall be as specied in Conductor dimensions, Tab
36、le 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 the minimum in the table for the p
37、urpose of determining whether the solid conductor does or does not comply with the diameter requirement. Table 4.1 Conductor dimensions for customary US AWG trade sizes 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
38、 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 0.00770 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
39、 29 0.287 0.003 0.0633 28 0.320 0.003 0.0789 27 0.361 0.003 0.101 26 0.404 0.005 0.125 25 0.455 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 OCTOBER 10, 2016 SINGLE- AND MULTI-LAYER INSULATED WINDING WIRE - UL 2353 6 Table 4.1 C
40、ontinued on Next 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 19 0.912 0.011 0.638 18 1.02 0.011 0.800 17 1.15 0.013 1.0
41、2 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 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
42、 Nominal conductor OD Minimum tolerance mm mm 0.050 0.403 0.003 0.404 0.510 0.005 0.511 0.642 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.
43、115 4.619 0.041 4.620 5.000 0.045 4.1.3 The total cross sectional area of the conductors in a stranded wire shall be at least equivalent to the minimum cross sectional area of the equivalent solid wire as noted in Table 4.1 for customary US AWG trade sizes, or calculated using the tolerances specied
44、 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 least ve strands shall be used to calculate the total cross sectional area and compared directly with the minimum in the table for th
45、e purpose of determining whether the stranded wire does or does not comply with the requirement. OCTOBER 10, 2016 SINGLE- AND MULTI-LAYER INSULATED WINDING WIRE - UL 2353 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 4.2 Fully insulated w
46、ire (FIW) 4.2.1 When determining the conductor dimensions solvent based enamels are to be removed prior to any measurements. Measurements of the diameter of a solid conductor are to be made by means of a machinists micrometer caliper having at surfaces both on the anvil and on the end of the spindle
47、 and calibrated to read directly to at least 0.01 mm or 0.001 in, with each division of a width that facilitates estimation of each measurement to 0.001 mm or 0.0001 in. The maximum and minimum diameters at a given point on the conductor are each to be recorded to the nearest 0.001 mm or 0.0001 in,
48、added together, and divided by 2 without any rounding of the sum or resulting average. 5 Number of Layers 5.1 Single and multi layer insulated wire 5.1.1 Transformer winding wire with extruded or spirally wrapped insulation where the layers can be individually tested for electric strength shall comp
49、ly with one 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 complies with the Electric Strength Test Straight Sample, Section 8, for supplementary insulation; c) Supplementary insula
