1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1581 Reference Standard for Electrical Wires, Cables, and Flexible CordsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHT
2、ED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Electrical Wires, Cables, and Flexible Cords, UL 1581 Fourth Edition, Dated October 31, 2001 Summary of Topics: This revision to ANSI/UL 1581 includes the following change in req
3、uirements: Revision to Table 47.1 to add and correct references Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. The new and/or revised requirements are substantially in accordance with Proposal(s) on this subject
4、dated October 16, 2015. 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 otherwise without prior permission of UL. UL provides this Standard as is without warr
5、anty 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, indirect or similar damages, including loss of prots, lost savings, loss of data,
6、 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 any damage ever exceed the price paid for this Standard, regardless of the form
7、 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 attorneys fees) resulting from any error or deviation introduced while purchase
8、r is storing an electronic Standard on the purchasers computer system. The requirements in this Standard are now in effect, 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.
9、The prior text for requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. DECEMBER 30, 2015 UL 1581 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERM
10、ISSION FROM UL DECEMBER 30, 2015 UL 1581 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 31, 2001 (Title Page Reprinted: December 30, 2015) 1 UL 1581 Reference Standard for Electrical Wires, Cables, and Flexib
11、le Cords First Edition August, 1983 Second Edition December, 1991 Third Edition October, 1997 Fourth Edition October 31, 2001 This ANSI/UL Standard for Safety consists of the Fourth Edition including revisions through December 30, 2015. The most recent designation of ANSI/UL 1581 as an American Nati
12、onal Standard (ANSI) occurred on December 30, 2015. ANSI approval for a standard does not include the Cover Page, Transmittal Pages and Title Page. Comments 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
13、 in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards sha
14、ll remain the sole and exclusive property of UL. COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC. ANSI/UL 1581-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 4, 2015 UL 1581 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED
15、 FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope 11 2 Units of Measurement 11 3 References and Terms .11 49 Reserved for Future Use 11 CONDUCTORS 10 Requirements for Aluminum Conductors of an 8000 Series Alloy .11 11 Requirements for Copper-Clad Alum
16、inum Conductors .12 12 19 Reserved for Future Use 13 20 Conductor Diameter and Cross-Sectional Area .13 21 29 Reserved for Future Use 25 30 D-C Conductor Resistance .25 31 39 Reserved for Future Use 45 INSULATION AND JACKET MATERIALS 40 General 45 41 46 Reserved for Future Use 45 47 Index Table 45 4
17、8 49 Reserved for Future Use .50 50 Specic Materials .50 51 199 Reserved for Future Use .88 METHODS CONDUCTOR DIMENSIONS AND RESISTANCE 200 Conductor Diameter 88 201 209 Reserved for Future Use 88 210 Conductor Cross-Sectional Area by the Weight Method 88 211 219 Reserved for Future Use 89 220 D-C C
18、onductor Resistance 89 221 227 Reserved for Future Use 89 WIRE BRAID AND SERVING COVERAGE 228 Measurements and Calculations .89 229 239 Reserved for Future Use 90 THICKNESSES OF INSULATION AND JACKET 240 Thicknesses of Insulation on Thermoplastic- and Thermoset-Insulated Wires and Cable . . .90 241
19、249 Reserved for Future Use 91 250 Thicknesses of Insulation on Flexible Cord and on Fixture Wire .91 251 259 Reserved for Future Use 92 260 Thicknesses of Jacket on Thermoplastic- and Thermoset-Insulated Wires and Cables .92 261 279 Reserved for Future Use 92 JUNE 4, 2015 UL 1581 3UL COPYRIGHTED MA
20、TERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 280 Thicknesses of Jacket on Flexible Cord, Fixture Wire, and Elevator Cable 92 281 399 Reserved for Future Use 93 PHYSICAL PROPERTIES TESTS OF INSULATION AND JACKET 400 General 93 401 419 Reserved for Future U
21、se 93 420 Apparatus 93 421 439 Reserved for Future Use 93 440 Preparation of Specimens 93 441 459 Reserved for Future Use 93 460 Recovery .93 461 469 Reserved for Future Use 94 470 Ultimate Elongation and Tensile Strength .94 471 479 Reserved for Future Use 94 480 Accelerated Aging .94 481 Long-Term
22、 Aging 95 482 489 Reserved for Future Use 97 COMPOUND ANALYSIS POLYVINYL CHLORIDE (PVC) COMPOUNDS 490 Infrared Spectroscopy 97 491 Determination of the Ash Content 98 492 Elemental Analysis .99 493 Gel Permeation Chromatography .101 NYLON AND TPE COMPOUNDS 494 Infrared Spectroscopy .102 495 Pyrolyti
23、c Gas Chromatography .103 496 Thermogravimetry 104 497 Differential Scanning Calorimetry .104 498 and 499 Reserved for Future Use 105 CONDUCTOR CORROSION 500 General .105 501 519 Reserved for Future Use 105 INSULATION FALL-IN 520 Test .105 521 539 Reserved for Future Use 105 HEAT SHOCK 540 Test .105
24、 541 559 Reserved for Future Use 105 JUNE 4, 2015 UL 1581 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL DEFORMATION 560 Test .105 561 579 Reserved for Future Use 106 COLD BEND 580 Test .106 581 and 582 Reserved for Future Use 106 FLEXIBIL
25、ITY AT LOW TEMPERATURE 583 Test .106 584 592 Reserved for Future Use 108 IMPACT AT ABNORMALLY LOW TEMPERATURE 593 Test .108 594 Reserved for Future Use 110 CRUSHING RESISTANCE 595 Test .110 596 600 Reserved for Future Use 110 601 Crushing-Resistance Test of Round Type NM Cable 110 602 619 Reserved f
26、or Future Use 111 620 Crushing-Resistance Test of Types XHHW-2, XHHW, and XHH 111 621 699 Reserved for Future Use 111 DIELECTRIC TESTS 700 Dielectric Breakdown Test of Types XHHW-2, XHHW, and XHH after Glancing Impact . . .111 701 719 Reserved for Future Use 111 720 Dielectric Breakdown Test of Type
27、s XHHW-2, XHHW, and XHH after Scoring .111 721 759 Reserved for Future Use 112 760 Dielectric Voltage-Withstand Test of Straight Foil-Wrapped Specimens 112 761 779 Reserved for Future Use 112 780 Dielectric Voltage-Withstand Test of Foil-Wrapped U-Bend Specimens 112 781 799 Reserved for Future Use 1
28、13 800 Dielectric Voltage-Withstand Test for Cord Conductors 113 801 819 Reserved for Future Use 113 820 Dielectric Voltage-Withstand Test of Coils and Reels in Water .113 821 829 Reserved for Future Use 113 830 Dielectric Voltage-Withstand Tests for Power-Limited Circuit Cable and for Cable for Pow
29、er-Limited Fire-Alarm Circuits 113 831 899 Reserved for Future Use 114 SPARK TEST 900 Method 114 901 909 Reserved for Future Use 115 910 Spark Tests for Power-Limited Circuit Cable and for Cable for Power-Limited Fire-Alarm Circuits 115 JUNE 4, 2015 UL 1581 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FO
30、R FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 911 918 Reserved for Future Use 118 INSULATION RESISTANCE 919 Test Procedure for Determining the Multiplying-Factor Column for Adjusting Insulation Resistance .118 920 Insulation-Resistance Test in Water .120 921 999 Reserved for Futu
31、re Use 121 STABILITY FACTOR 1000 Test .121 1001 1019 Reserved for Future Use 121 CAPACITANCE AND RELATIVE PERMITTIVITY 1020 Test .121 1021 1039 Reserved for Future Use 122 MECHANICAL WATER ABSORPTION 1040 Test .122 1041 and 1042 Reserved for Future Use 124 SWELLING AND BLISTERING IN WATER 1043 Test
32、.124 1044 1059 Reserved for Future Use 124 FLAME TESTS 1060 Vertical Flame and FT1 Tests .124 1061 Cable Flame Test .125 1062 1079 Reserved for Future Use 130 1080 VW-1 (Vertical-Specimen) Flame Test .130 1081 1089 Reserved for Future Use 131 1090 Horizontal-Specimen Appliance-Wire Flame Test 131 10
33、91 1099 Reserved for Future Use 135 1100 Horizontal-Specimen / FT2 Flame Test .135 1101 1159 Reserved for Future Use 135 1160 UL Vertical-Tray Flame Test 135 1161 1163 Reserved for Future Use 136 1164 FT4/IEEE 1202 Vertical-Tray Flame Test .136 1165 1199 Reserved for Future Use 136 SUNLIGHT RESISTAN
34、CE 1200 Xenon-Arc Tests 136 1201 1249 Reserved for Future Use 137 GLASS CONTENT 1250 Test .137 JUNE 4, 2015 UL 1581 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 1251 1269 Reserved for Future Use 138 TIGHTNESS OF INSULATION 1270 Test for
35、Tightness of Conductor Insulation in Decorative-Lighting Cords and Wire .138 1271 1279 Reserved for Future Use 138 1280 Test for Tightness of Circuit-Conductor Insulation in Integral Parallel Cord Other Than Tinsel Cord .138 1281 1299 Reserved for Future Use 138 LEAKAGE 1300 Test of Type TBS for Sur
36、face Leakage Resistance 138 1301 1319 Reserved for Future Use 139 1320 A-C Leakage-Current Tests of Low-Leakage-Current Service Cords .139 1321 1339 Reserved for Future Use 139 1340 Test for D-C Resistance of Nonintegral Cord Jacket .139 1341 1399 Reserved for Future Use 140 IMPACT RESISTANCE 1400 T
37、est .140 1401 1499 Reserved for Future Use 140 ABRASION OF 22 AWG TYPE XTW AND CXTW WIRE AND CORD 1500 Test .140 1501 1509 Reserved for Future Use 140 ABRASION 1510 Test .140 1511 1519 Reserved for Future Use 141 FLEXING OF 22 AWG TYPE XTW AND CXTW WIRE AND CORD 1520 Test .141 1521 1539 Reserved for
38、 Future Use 141 CRACKING OF NYLON COVERING ON COAXIAL-CABLE MEMBERS OF ELEVATOR CABLES OR OF NYLON JACKET ON TYPES TFN, TFFN, AND SPT-1 AND OF INSULATED CONDUCTORS IN SERVICE CORDS 1540 Test .141 1541 1559 Reserved for Future Use 141 FLEXING OF TYPE SF-1, SF-2, SFF-1, AND SFF-2 FIXTURE WIRES 1560 Te
39、st .141 1561 1581 Reserved for Future Use 142 JUNE 4, 2015 UL 1581 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FLEXING OF SHIELDED CORDS 1582 Test .142 1583 1589 Reserved for Future Use 142 MANDREL TEST OF NYLON JACKET ON TYPE THWN-2, T
40、HWN, AND THHN WIRES 1590 Test .142 1591 1599 Reserved for Future Use 143 1600 Comparison of Metal Sheaths .143 1601 1609 Reserved for Future Use 145 MOISTURE ABSORPTION BY FIBROUS COVERINGS OTHER THAN TAPE 1610 Test .145 1611 1629 Reserved for Future Use 148 FALLING PARTICLES AND DRIPPING FROM FIBRO
41、US-COVERED WIRE AND CABLE 1630 Test .148 1631 1669 Reserved for Future Use 148 ARCING OF TYPE HPN CORD 1670 Flame Test .148 1671 1679 Reserved for Future Use 148 1680 Broken-Strands Test .148 1681 1689 Reserved for Future Use 149 DURABILITY OF INDELIBLE-INK PRINTING 1690 Test .149 JUNE 4, 2015 UL 15
42、81 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JULY 28, 2008 UL 1581 9 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This page intentionally left blank. JU
43、LY 28, 2008 UL 1581 10UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 This standard contains specic details of the conductors, of the insulation, of the jackets and other coverings, and of the methods of sample prepa
44、ration, of specimen selection and conditioning, and of measurement and calculation that are required in wire and cable standards. 1.2 The requirements for the particular materials, construction, performance, and marking of an individual type of wire, cable, or exible cord are stated in the standard
45、covering the nished type. They are not part of this reference standard. 1.3 In each case in which an element of this standard does not apply, the standard covering the nished type so states and species what does apply. 2 Units of Measurement 2.1 In addition to being stated in the inch/pound units th
46、at are customary in the USA, each numerical requirement in this standard is also stated in units that make the requirement conveniently usable in countries employing the metric system. Equivalent although not exactly identical results are to be expected from applying a requirement in inch/pound or m
47、etric units. Equipment calibrated in metric units is to be used when a requirement is stated in metric terms. 3 References and Terms 3.1 The term wire standard as used in this standard means any standard that covers nished electrical wires, cables, or exible cords and in which reference is made to t
48、his reference standard (UL 1581). 49 Reserved for Future Use CONDUCTORS 10 Requirements for Aluminum Conductors of an 8000 Series Alloy 10.1 These requirements cover aluminum wire in annealed and intermediate tempers using 8000 series electrical-conductor-grade aluminum alloys. These alloys are for
49、use in solid conductors in the64 / 0 AWG sizes and in round-strand and compressed- and compact-stranded conductors in the 12 AWG 2000 kcmil sizes. 10.2 The wire shall be of a registered 8000 series electrical-conductor-grade aluminum alloy complying with ASTM B 800-05. The conductor diameter and cross-sectional area shall comply with Conductor Diameter and Cross-Sectional A
