UL 444-2017 UL Standard for Safety Communications Cables (Fifth Edition).pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 444 Communications Cables STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED

2、FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Communications Cables, UL 444 Fifth Edition, Dated January 20, 2017 Summary of Topics This new edition of ANSI/UL 444 is being issued to incorporate multiple substantive and editorial changes. As noted in

3、the Commitment for Amendments statement located on the back side of the title page, UL and CSA are committed to updating this harmonized standard jointly. The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated June 3, 2016. All rights reserved. No par

4、t 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 warranty of any kind, either expressed or implied, incl

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8、rs computer system. JANUARY 20, 2017 UL 444 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 20, 2017 UL 444 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION

9、 FROM UL CSA Group CSA C22.2 No. 214-17 Eighth Edition Underwriters Laboratories Inc. UL 444 Fifth Edition Communications Cables January 20, 2017 ANSI/UL 444-2017UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Commitment for Amendments This

10、standard is issued jointly by the Canadian Standards Association (operating as “CSA Group”) and Underwriters Laboratories Inc. (UL). Comments or proposals for revisions on any part of the standard may be submitted to CSA Group or UL at any time. Revisions to this standard will be made only after pro

11、cessingaccordingtothestandardsdevelopmentproceduresofCSAGroupandUL.CSAGroupand ULwillissuerevisionstothisstandardbymeansofaneweditionorrevisedoradditionalpagesbearing their date of issue. ISBN 978-1-4883-0400-2 2017 CSA Group All rights reserved. No part of this publication may be reproduced in any

12、form whatsoever without the prior permission of the publisher. This Standard is subject to review ve years from the date of publication, and suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to inquir

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15、garding those Standards shall remain the sole and exclusive property of UL. This ANSI/UL Standard for Safety consists of the Fifth edition. The most recent designation of ANSI/UL 444 as an American National Standard (ANSI) occurred on January 20, 2017. ANSI approval for a standard does not include t

16、he Cover Page, Transmittal Pages, Title Page (front and back), or the Preface. The Department of Defense (DoD) has adopted UL 444 on June 12, 1987. The publication of revised pages or a new edition of this Standard will not invalidate the DoD adoption. Comments or proposals for revisions on any part

17、 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:/. To purchase UL Standards, visit Comm 2000 at http:/m- or call toll-free 1-888-853-3503.UL COPYRIGHTED MATERIAL NOT AU

18、THORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS Preface .5 Communications Cables 1 Scope .6 2 Reference publications 6 3 Denitions8 4 General Requirements.9 5 Construction9 5.1 Conductors 9 5.2 Insulation .10 5.3 Optical bre members11 5.4 Core assembly 11 5.5 De

19、fective pairs 12 5.6 Spare pairs .12 5.7 Core binders 13 5.8 Core wrap 13 5.9 Shields .13 5.10 Jackets .13 5.11 Metallic covering .14 5.12 Metallic messenger 14 6 Manufacturing and Production Tests .14 6.1 Spark test after insulating 14 6.2 Continuity 15 6.3 Dielectric strength .15 7 Capability Test

20、s .16 7.1 Corrosion resistance of uncoated copper conductors 16 7.2 Crush resistance of insulation .17 7.3 Insulation unaged and heat-aged requirements .18 7.4 Insulation shrinkback 19 7.5 Insulation cold bend .19 7.6 AC leakage current through overall jacket 19 7.7 Durability of printing .20 7.8 Un

21、aged and heat-aged requirements of jacket 20 7.9 Flexibility (PVDF jackets rated 125C only) .21 7.10 Cable cold bend .21 7.11 Jacket peel test 22 7.12 Weatherometer test for Type CMX Cable .23 7.13 Cold impact of outdoor Type CMX cable 23 7.14 Flame and smoke requirements 24 7.15 Measuring thickness

22、 of insulation and rounding off the results .25 7.16 Conductor resistance .26 7.17 Conductor diameter or cross-sectional area .26 7.18 Compressive loading test for Type CMUC .27 7.19 Heat shock test for cross-connect wire 27 7.20 Deformation test for cross-connect wire .28 7.21 Dielectric tests for

23、cross-connect wire.28 7.22 Sunlight resistant test .29 7.23 Circuit integrity test for cable marked -CI 29 7.24 Cable heating test for cables marked -LP (XX) .29 JANUARY 20, 2017 CSA C22.2 NO. 214-17 UL 444 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERM

24、ISSION FROM UL 8 Marking of Cables .30 8.1 General 30 8.2 Type of marking .30 8.3 Required marking .30 8.4 Optional marking 32 8.5 Intervals 33 9 Marking on Tag, Reel, or Carton.33 9.1 General requirements 33 9.2 Other marking.34 10 Date of Manufacture 34 TABLES ANNEX A Electrical codes for wire typ

25、es ANNEX B Guidelines for sample selection for ame and smoke test requirements ANNEX C Cable substitutions JANUARY 20, 2017 CSA C22.2 NO. 214-17 UL 444 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Preface This is the common CSA and UL st

26、andard for communications cables. It is the eighth edition of CSA C22.2 No. 214 and the fth edition of UL 444. This edition of CSA C22.2 No. 214 supersedes the previous editions published in 2008, 2002, 1994, 1990, 1988, 1986, and 1984. This UL edition supersedes the previous editions published in 2

27、008, 2002, 1994 and 1990. This common Standard was prepared by the Canadian Standards Association and Underwriters Laboratories Inc. The efforts of the UL 444/CSA 214 Harmonization Committee are greatly appreciated. This Standard is considered suitable for use for conformity assessment within the st

28、ated scope of the Standard. This Standard was reviewed by the CSA Subcommittee on Communication Cable, under the jurisdiction of the Technical Committee on Wiring Products and the Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the Technical Comm

29、ittee. This standard has been approved by the American National Standards Institute (ANSI) as an American National Standard. Application of Standard Where reference is made to a specic number of samples to be tested, the specied number is considered a minimum quantity. Note: Although the intended pr

30、imary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the standard to judge its suitability for their particular purpose. Level of Harmonization This standard uses an IEC format, but is not based on, nor is it to be cons

31、idered equivalent to, an IEC standard. This standard is published as an identical standard. An identical standard is a standard that is the same in technical content except for conicts in codes and governmental regulations. Presentation is word for word except for editorial changes. Interpretations

32、The interpretation by the standards development organization of an identical or equivalent standard is based on the literal text to determine compliance with the standard in accordance with the procedural rulesofthestandardsdevelopmentorganization.Ifmorethanoneinterpretationoftheliteraltexthasbeen i

33、dentied, a revision is to be proposed as soon as possible to each of the standards development organizations to more accurately reect the intent. JANUARY 20, 2017 CSA C22.2 NO. 214-17 UL 444 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL C

34、ommunications Cables 1 Scope 1.1 This standard applies to 60 250C single- or multiple-conductor jacketed or unjacketed, integral or nonintegral cables and single or multiple coaxial cables for telephone and other communication circuits such as voice, data, and audio for on-premise customer systems.

35、These cables are may contain one or more optical bre members. For the purpose of this standard, a coaxial cable or coaxial member conductor is a single conductor with a shield. For the purpose of this standard, a single- or multiple-conductor unjacketed cable is a cross-connect wire. 1.2 This standa

36、rd applies to communications cables that are intended primarily for installation in accordance with Section 60 of the Canadian Electrical Code Part I, and Article 800 of the National Electrical Code (NEC), ANSI/NFPA 70. They are rated for 300 V applications, but are not so marked. Note: See Annex A

37、for a complete list of wire types covered by this Standard and the specic electrical codes for which they are intended. 1.3 This standard does not apply to communications cords. 1.4 In Canada, the Type -CI circuit integrity markings are not recognized by the Canadian Electrical Code, Part I. In the

38、US, Type CMH is not recognized in the NEC. 1.5 If a value for measurement is followed by a value in other units in parenthesis, the second value may be only approximate. The rst stated value is the requirement. 2 Reference publications Any undated reference to a code or standard appearing in the req

39、uirements of this standard shall be interpreted as referring to the latest edition of that code or standard. CSA Group C22.115 Canadian Electrical Code, Part I CAN/CSA-C22.2 No. 010 General Requirements Canadian Electrical Code, Part II CSA C22.2 No. 255615 Wire and Cable Test Methods UL (Underwrite

40、rs Laboratories) UL 1581 Reference Standard for Electrical Wires, Cables, and Flexible Cords UL 1666 Test for Flame Propagation Height of Electrical and Optical-Fiber Cables Installed Vertically in Shafts JANUARY 20, 2017 CSA C22.2 NO. 214-17 UL 444 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHE

41、R REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1685 Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber Cables UL 2196 Tests for Fire Resistive Cables UL 2556 Wire and Cable Test Methods ANSI (American National Standards Institute) Z136 Series Safe Us

42、e of Lasers ANSI/ASTM (American National Standards Institute/American Society for Testing and Materials) E230/E230M Standard Specication and Temperature-Electromotive Force (emf) Tables for Standardized Thermocouples ANSI/NFPA (American National Standards Institute/National Fire Protection Associati

43、on) NFPA 70 National Electrical Code ASTM (American Society for Testing and Materials) B33 Specication for Tinned Soft or Annealed Copper Wire for Electrical Purposes B189 Specication for Lead-Coated and Lead-Alloy-Coated Soft Copper Wire for Electrical Purposes B298 Specication for Silver-Coated So

44、ft or Annealed Copper Wire B355 Specication for Nickel-Coated Soft or Annealed Copper Wire B566 Standard Specication for Copper-Clad Aluminum Wire B869 Specication for Copper-Clad Steel Electrical Conductor for CATV Drop Wire D5374 Test Methods for Forced-Convection Laboratory Ovens for Evaluation o

45、f Electrical Insulation D5423 Specication for Forced-Convection Laboratory Ovens for Evaluation of Electrical Insulation JANUARY 20, 2017 CSA C22.2 NO. 214-17 UL 444 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NFPA (National Fire Protec

46、tion Association) NFPA 262 Standard Method of Test for Flame Travel and Smoke of Wire and Cables for Use in Air-Handling Spaces 3 Denitions 3.1 The following denitions apply in this standard: 3.2 BONDED METAL SHIELD A covering over the cable core assembly consisting of a metal tape whose outer surfa

47、ce is adhesively bound to a polymeric jacket over it. 3.3 CAPABILITY TEST A test that is conducted periodically on a cable component, or on a completed cable, intended to be proof of adequate construction and processing, and that is repeated for verication. 3.4 COAXIAL CABLE A cable having one or mo

48、re coaxial members, each consisting of a conductor centred inside one or more outer conductors consisting of metal tubes or shields, separated from the central conductor by a dielectric material. 3.5 COVERING A jacket, sheath, or armour. 3.6 CROSS-CONNECT WIRE (CABLE) A single- or multiple-conductor

49、 construction consisting of insulated conductors without an overall jacket. 3.7 DIELECTRIC An insulating (nonconducting) medium. 3.8 EQUIVALENT GAUGE A round conductor AWG number used to designate a at conductor that has a cross-sectional area equal to that of the round conductor. 3.9 GROUND PLANE A partially encompassing shield provided to reduce stray electrical elds. 3.10 INTEGRAL COVERING A single extruded layer that serves as both