UL 444-2008 UL Standard for Safety Communications Cables (Fourth Edition Reprint with Revisions Through and Including April 30 2015)《通信电缆》.pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUL 444Communications CablesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION

2、 ORDISTRIBUTION WITHOUT PERMISSION FROM ULUL Standard for Safety for Communications Cables, UL 444Fourth Edition, Dated July 11, 2008Revision pages have been issued for the Standard for Communications Cables, UL 444, toincorporate the following: Addition of a size determination of copper clad conduc

3、tors. Revision to the air-gap coax acceptability. Addition of requirements for metallic messengers. Revision to dielectric testing on communication cables. Editorial corrections. Clarification of size requirements of copper-clad aluminum conductors. Application of requirements in 5.1.2.Text that has

4、 been changed in any manner or impacted by ULs electronic publishing system is markedwith a vertical line in the margin.The revised requirements are substantially in accordance with Proposal(s) on this subject dated August 7,2009, January 22, 2010 and January 29, 2010.All rights reserved. No part of

5、 this publication may be reproduced, stored in a retrieval system, ortransmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwisewithout prior permission of UL.UL provides this Standard as is without warranty of any kind, either expressed or implied, including b

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7、bility to use this Standard, even if UL or an authorized UL representative has been advised of thepossibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid forthis Standard, regardless of the form of the claim.Users of the electronic versions of ULs Standa

8、rds for Safety agree to defend, indemnify, and hold ULharmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonableattorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronicStandard on the purchasers computer s

9、ystem.The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, figures,and/or other elements of the Standard having future effective dates as indicated in the preface. The priortext for requirements that have been revised and that have a future effective da

10、te are located after theStandard, and are preceded by a SUPERSEDED REQUIREMENTS notice.APRIL 30, 2010 UL 444 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULAPRIL 30, 2010 UL 444tr2No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED

11、FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCanadian Standards AssociationCSA C22.2 No. 214-08Seventh EditionUnderwriters Laboratories Inc.UL 444Fourth EditionCommunications CablesJuly 11, 2008(Title Page Reprinted: April 30, 2010)ANSI/UL 444-2010UL COPYRIGHTED MATERIAL NOT AUT

12、HORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCommitment for AmendmentsThis standard is issued jointly by the Canadian Standards Association (CSA) and UnderwritersLaboratories Inc. (UL). Comments or proposals for revisions on any part of the standard may besubmitted to CS

13、A or UL at any time. Revisions to this standard will be made only after processingaccording to the standards development procedures of CSA and UL. CSA and UL will issue revisionsto this standard by means of a new edition or revised or additional pages bearing their date of issue.ISBN 978-1-55436-696

14、-5 2008Canadian Standards AssociationAll rights reserved. No part of this publication may be reproduced in any form whatsoever without theprior permission of CSA.To purchase CSA Standards and related publications, visit CSAs Online Store at www.ShopCSA.caor call toll-free 1-800-463-6727 or 416-747-4

15、044.CSA Standards are subject to periodic review, and suggestions for their improvement will be referredto the appropriate committee. To submit a proposal for change to CSA Standards, please send thefollowing information to inquiriescsa.ca and include Proposal for change in the subject line: Standar

16、d designation (number); relevant clause, table, and/or figure number; wording of the proposed change; and rationale for the change.Copyright 2010 Underwriters Laboratories Inc.ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standardshould be altered in any

17、way. All of ULs Standards and all copyrights, ownerships, and rights regardingthose Standards shall remain the sole and exclusive property of UL.This ANSI/UL Standard for Safety consists of the Fourth edition including revisions through April 30,2010.The most recent designation of ANSI/UL 444 as an

18、American National Standard (ANSI) occurred onApril 30, 2010. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, TitlePage (front and back), or the Preface.The Department of Defense (DoD) has adopted UL 444 on June 12, 1987. The publication of revisedpages or a new editi

19、on of this Standard will not invalidate the DoD adoption.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 in ULs On-Line Collaborative StandardsDevelopment System (CSDS) at http:/.UL COPYRIGHTED MA

20、TERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTo purchase UL Standards, visit Comm 2000 at http:/m- or call toll-free 1-888-853-3503.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULAPRIL 30, 2010CSA C2

21、2.2 NO. 214-08 UL 4444No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSPreface .6Communication Cables1 Scope .72 Reference publications 73 Definitions 94 General Requirements .95 Construction .105.1 Conductors .105.2

22、 Insulation .115.3 Optical fibre members 125.4 Core assembly 125.6 Spare pairs .135.7 Core binders 135.8 Core wrap 135.9 Shields .135.10 Jackets .145.11 Metallic covering .155.12 Metallic messenger 156 Manufacturing and production tests 156.1 Spark test after insulating 156.2 Continuity 166.3 Dielec

23、tric strength .167 Capability tests 177.1 Corrosion resistance of uncoated copper conductors 177.2 Crush resistance of insulation .177.3 Insulation unaged and heat-aged requirements .187.4 Insulation shrinkback 197.5 Insulation cold bend .207.6 AC leakage current through overall jacket 207.7 Durabil

24、ity of printing .207.8 Unaged and heat-aged requirements of jacket 207.9 Flexibility (PVDF jackets rated 125C only) .217.10 Cable cold bend .227.11 Jacket peel test 227.12 Weatherometer test for Type CMX Cable .237.13 Cold impact of outdoor Type CMX cable 237.14 Flame and smoke requirements 247.15 M

25、easuring thickness of insulation and rounding off the results .257.16 Conductor resistance .267.17 Conductor diameter .267.18 Compressive loading test for Type CMUC .277.19 Heat shock test for cross-connect wire 277.20 Deformation test for cross-connect wire .287.21 Dielectric tests for cross-connec

26、t wire .287.22 Sunlight resistant test .297.23 Circuit integrity test for cable marked -CI 298 Marking of Cables .298.1 General 29APRIL 30, 2010 CSA C22.2 NO. 214-08 UL 444 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL8.2 Type of marking .

27、298.3 Required marking .308.4 Optional marking 328.5 Intervals 329 Marking on tag, reel, or carton .329.1 General requirements 329.2 Other marking .3310 Date of manufacture 33TABLESAppendix A Electrical codes for wire typesAppendix B Guidelines for sample selection for flame and smoke test requireme

28、ntsAppendix C Cable substitutionsAPRIL 30, 2010CSA C22.2 NO. 214-08 UL 4446UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPrefaceThis is the common CSA and UL standard for communications cables. It is the seventh edition of CSAC22.2 No. 214 a

29、nd the fourth edition of UL 444. This edition of CSA C22.2 No. 214 supersedes theprevious editions published in 2002, 1994, 1990, 1988, 1986, and 1984. This UL edition supersedes theprevious editions published in 2002, 1994 and 1990.This common Standard was prepared by the Canadian Standards Associa

30、tion and UnderwritersLaboratories 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 stated scope of theStandard.This Standard was reviewed by the CSA Subcommittee on Communication C

31、able, under the jurisdictionof the Technical Committee on Wiring Products and the Strategic Steering Committee on Requirementsfor Electrical Safety, and has been formally approved by the Technical Committee.This standard has been approved by the American National Standards Institute (ANSI) as an Ame

32、ricanNational Standard.Where reference is made to a specific number of samples to be tested, the specified number isconsidered a minimum quantity.Note: Although the intended primary application of this Standard is stated in its Scope, it is important to note that itremains the responsibility of the

33、users of the standard to judge its suitability for their particular purpose.Level of harmonizationThis standard uses an IEC format, but is not based on, nor is it to be considered equivalent to, an IECstandard. This standard is published as an identical standard. An identical standard is a standard

34、that isthe same in technical content except for conflicts in codes and governmental regulations. Presentation isword for word except for editorial changes.InterpretationsThe interpretation by the standards development organization of an identical or equivalent standard isbased on the literal text to

35、 determine compliance with the standard in accordance with the proceduralrules of the standards development organization. If more than one interpretation of the literal text has beenidentified, a revision is to be proposed as soon as possible to each of the standards developmentorganizations to more

36、 accurately reflect the intent.CSA Effective DateThe effective date for CSA International will be announced through CSA Informs or a CSA certificationnotice.UL Effective DateAs of April 30, 2010 all products Listed by UL must comply with the requirements in this standard.APRIL 30, 2010 CSA C22.2 NO.

37、 214-08 UL 444 6AUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULA UL effective date is one established by Underwriters Laboratories Inc. and is not part of the ANSIapproved standard.APRIL 30, 2010CSA C22.2 NO. 214-08 UL 4446BUL COPYRIGHTED MA

38、TERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCommunication Cables1 Scope1.1 This standard applies to 60 250C single- or multiple-conductor jacketed or unjacketed, integral ornonintegral cables and single or multiple coaxial cables for telephone and other co

39、mmunication circuitssuch as voice, data, and audio for on-premise customer systems. These cables are not prohibited fromcontaining one or more optical fibre members. For the purpose of this standard, a coaxial cable or coaxialmember conductor is a single conductor with a shield. For the purpose of t

40、his standard, a single- ormultiple-conductor unjacketed cable is a cross-connect wire.1.2 This standard applies to communications cables that are intended primarily for installation inaccordance with Section 60 of the Canadian Electrical Code(CEC), Part I, and Article 800 of the NationalElectrical C

41、ode(NEC), ANSI/NFPA 70. They are rated for 300 V applications but are not so marked.Note: See Appendix A for a complete list of wire types covered by this Standard and the specific electrical codes for whichthey are intended.1.3 This standard does not apply to communications cords.1.4 In Canada, Typ

42、e CMUC, cross-connect communications cables, and the -CI circuit integritymarkings are not recognized by the Canadian Electrical Code, Part I.In the 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 maybe o

43、nly approximate. The first stated value is the requirement.2 Reference publicationsAny undated reference to a code or standard appearing in the requirements of this standard shall beinterpreted as referring to the latest edition of that code or standard.CSA (Canadian Standards Association)C22.1Canad

44、ian Electrical Code, Part ICAN/CSA-C22.2 No. 0General Requirements Canadian Electrical Code, Part IICSA C22.2 No. 2556Wire and Cable Test MethodsUL (Underwriters Laboratories)UL 1581Reference Standard for Electrical Wires, Cables, and Flexible CordsAPRIL 30, 2010 CSA C22.2 NO. 214-08 UL 444 7UL COPY

45、RIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUL 1666Test for Flame Propagation Height of Electrical and Optical-Fiber Cables Installed Vertically in ShaftsUL 1685Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fibe

46、r CablesUL 2196Tests for Fire Resistive CablesUL 2556Wire and Cable Test MethodsANSI (American National Standards Institute)Z136 SeriesSafe Use of Lasers.ANSI/NFPA (American National Standards Institute/National Fire Protection Association)NFPA 70National Electric CodeASTM (American Society for Test

47、ing and Materials)B33Specification for Tinned Soft or Annealed Copper Wire for Electrical PurposesB 189Specification for Lead-Coated and Lead-Alloy-Coated Soft Copper Wire for Electrical PurposesB 298Specification for Silver-Coated Soft or Annealed Copper WireB 355Specification for Nickel-Coated Sof

48、t or Annealed Copper WireB 869Specification for Copper-clad Steel Electrical Conductor for CATV Drop WireD 5374Test Methods for Forced-Convection Laboratory Ovens for Evaluation of Electrical InsulationD 5423Specification for Forced-Convection Laboratory Ovens for Evaluation of Electrical Insulation

49、NFPA (National Fire Protection Association)NFPA 262Standard Method of Test for Fire and Smoke Characteristics of Wire and CablesThe requirements of CAN/CSA-C22.2 No. 0, when appropriate, apply to this standard.JULY 11, 2008CSA C22.2 NO. 214-08 UL 4448UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL3 Definitions3.1 The following definitions apply in this standard:3.2 BONDED METAL SHIELD A covering over the cable co