IEC 61156-3-2008 Multicore and symmetrical pair quad cables for digital communications - Part 3 Work area cable - Sectional specification《数字通信用多芯和对绞电缆 扭绞四心电缆.第3部分 工作区电缆.分规范》.pdf

《IEC 61156-3-2008 Multicore and symmetrical pair quad cables for digital communications - Part 3 Work area cable - Sectional specification《数字通信用多芯和对绞电缆 扭绞四心电缆.第3部分 工作区电缆.分规范》.pdf》由会员分享，可在线阅读，更多相关《IEC 61156-3-2008 Multicore and symmetrical pair quad cables for digital communications - Part 3 Work area cable - Sectional specification《数字通信用多芯和对绞电缆 扭绞四心电缆.第3部分 工作区电缆.分规范》.pdf（18页珍藏版）》请在麦多课文档分享上搜索。

1、 IEC 61156-3 Edition 3.0 2008-11 INTERNATIONAL STANDARD Multicore and symmetrical pair/quad cables for digital communications Part 3: Work area cable Sectional specification IEC 61156-3:2008(E) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2008 IEC, Geneva, Switzerland All rights reserved. Unles

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4、www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications The technical content of IEC publications is kept under

5、constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. Catalogue of IEC publications: www.iec.ch/searchpub The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical commi

6、ttee,). It also gives information on projects, withdrawn and replaced publications. IEC Just Published: www.iec.ch/online_news/justpub Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available on-line and also by email. Electropedia: w

7、ww.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical Vocabulary online. Customer Service Cen

8、tre: www.iec.ch/webstore/custserv If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service Centre FAQ or contact us: Email: csciec.ch Tel.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 61156-3 Edition 3.0 2008-11 INTERNATIONAL STANDARD Mult

9、icore and symmetrical pair/quad cables for digital communications Part 3: Work area cable Sectional specification INTERNATIONAL ELECTROTECHNICAL COMMISSION N ICS 33.120.20 PRICE CODE ISBN 2-8318-1013-5 Registered trademark of the International Electrotechnical Commission 2 61156-3 IEC:2008(E) CONTEN

10、TS FOREWORD.4 1 General 6 1.1 Scope6 1.2 Normative references 6 1.3 Installation considerations6 2 Definitions, materials and cable construction.6 2.1 Definitions .6 2.2 Materials and cable construction7 2.2.1 General remarks7 2.2.2 Cable construction.7 2.2.3 Conductor7 2.2.4 Insulation.7 2.2.5 Colo

11、ur code of insulation7 2.2.6 Cable element .7 2.2.7 Screening of the cable element 7 2.2.8 Cable make-up 8 2.2.9 Screening of the cable core8 2.2.10 Sheath.8 2.2.11 Colour of sheath 8 2.2.12 Identification8 2.2.13 Finished cable .8 3 Characteristics and requirements8 3.1 General remarks8 3.2 Electri

12、cal characteristics 9 3.2.1 Conductor resistance.9 3.2.2 Resistance unbalance9 3.2.3 Dielectric strength9 3.2.4 Insulation resistance9 3.2.5 Mutual capacitance9 3.2.6 Capacitance unbalance9 3.2.7 Transfer impedance.9 3.3 Transmission characteristics9 3.3.1 Velocity of propagation (phase velocity) .9

13、 3.3.2 Attenuation 10 3.3.3 Unbalance attenuation .10 3.3.4 Near-end crosstalk (NEXT) 10 3.3.5 Characteristic impedance.11 3.3.6 Structural Return Loss (SRL) .11 3.4 Mechanical and dimensional characteristics and requirements .12 3.4.1 Dimensional requirements12 3.4.2 Elongation at break of the cond

14、uctors 12 3.4.3 Elongation at break of the insulation.12 3.4.4 Elongation at break of the sheath.12 3.4.5 Tensile strength of the sheath12 3.4.6 Crush test of the cable.12 3.4.7 Impact test of the cable12 3.4.8 Repeated bending of the cable.12 61156-3 IEC:2008(E) 3 3.4.9 Tensile performance of the c

15、able .13 3.5 Environmental characteristics 13 3.5.1 Shrinkage of insulation.13 3.5.2 Wrapping test of insulation after thermal ageing.13 3.5.3 Bending test of insulation at low temperature .13 3.5.4 Elongation at break of the sheath after ageing13 3.5.5 Tensile strength of the sheath after ageing.13

16、 3.5.6 Sheath pressure test at high temperature.13 3.5.7 Cold bend test of the cable 13 3.5.8 Heat shock test13 3.5.9 Flame propagation characteristics of a single cable13 3.5.10 Flame propagation characteristics of bunched cables.13 3.5.11 Acid gas evolution13 3.5.12 Smoke generation14 3.5.13 Toxic

17、 gas emission 14 3.5.14 Combined flame and smoke test for cables in environmental air handling space 14 4 Introduction to the blank detail specification 14 Table 1 Constants 10 Table 2 NEXT, PSNEXT constants .11 Table 3 Input impedance values .11 Table 4 Function fitted impedance11 Table 5 Structura

18、l return loss (dB min) .12 4 61156-3 IEC:2008(E) INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MULTICORE AND SYMMETRICAL PAIR/QUAD CABLES FOR DIGITAL COMMUNICATIONS Part 3: Work area cable Sectional specification FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organizati

19、on for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC p

20、ublishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with m

21、ay participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agre

22、ement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC

23、Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used

24、 or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the cor

25、responding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the

26、 latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever,

27、 whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications

28、is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IE

29、C 61156-6 has been prepared by subcommittee 46C: Wires and symmetric cables, of IEC technical committee 46: Cables, wires, waveguides, R.F. connectors, R.F. and microwave passive components and accessories. This third edition cancels and replaces the second edition published in 2003. This edition co

30、nstitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) new requirements for new cables Cat3, and Cat5 applications; b) a better numbering in order to take into account the generic specification. 61156-3 IEC:2008(E) 5

31、 The text of this standard is based on the first edition and on the following documents: FDIS Report on voting 46C/864/FDIS 46C/869/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafte

32、d in accordance with the ISO/IEC Directives, Part 2. This standard shall be read in conjunction with IEC 61156-1:2002. The list of all the parts of the IEC 61156 series, under the general title Multicore and symmetrical pair/quad cables for digital communications, can be found on the IEC website. Th

33、e committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed; withdrawn; replaced by

34、 a revised edition, or amended. A bilingual version of this publication may be issued at a later date. 6 61156-3 IEC:2008(E) MULTICORE AND SYMMETRICAL PAIR/QUAD CABLES FOR DIGITAL COMMUNICATIONS Part 3: Work area cable Sectional specification 1 General 1.1 Scope This sectional specification relates

35、to IEC 61156-1:2002. The cables are specifically intended for work area wiring as defined in ISO/IEC 11801. This specification defines individually screened, common overall core screen and unscreened pairs or quads in cables for work area wiring. These cables are suitable for the various communicati

36、on systems for which the reference is given in the relevant detail specification. The cables covered by this sectional specification are intended to operate with voltages and currents normally adopted for communication systems. These cables should not be connected to low impedance sources, for examp

37、le, the public mains electricity supply. The recommended temperature range during installation is 0 o C to +50 o C. The actual temperature range during installation shall be indicated in the relevant detail specification. The normal operating temperature range shall be 40 o C to +60 o C. 1.2 Normati

38、ve references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 61156-1:2002 1 , Multicore and

39、symmetrical pair/quad cables for digital communications Part 1: Generic specification IEC 60304, Standard colours for insulation for low-frequecny cables and wires IEC 60344, Calculation of d.c. resistance of plain and coated copper conductors of low- frequency cables and wires - Application guide I

40、SO/IEC 11801, Information technology Generic cabling for customer premises 1.3 Installation considerations See 1.3 of IEC 61156-1:2002 and ISO/IEC 11801. 2 Definitions, materials and cable construction 2.1 Definitions See 2.1 of IEC 61156-1:2002. _ 1A more recent version of this standard exists (200

41、7), but as not all of the tests cited herein are addressed by the newer edition, it has been decided that the 2002 edition is to be used. 61156-3 IEC:2008(E) 7 2.2 Materials and cable construction 2.2.1 General remarks The choice of materials and cable construction shall be suitable for the intended

42、 application and installation of the cable. Particular care shall be taken to meet any special requirements for fire performance (such as burning properties, smoke generation, evolution of halogen gas, etc.). 2.2.2 Cable construction The cable construction shall be in accordance with the details and

43、 dimensions given in the relevant detail cable specification. 2.2.3 Conductor The conductor shall consist of annealed copper. The conductor may be solid or stranded. The solid conductor nominal diameter shall be between 0,3 mm and 0,6 mm. Preferably, the stranded conductor should consist of seven st

44、rands. The conductor shall be plain or tinned copper. Joints in the complete element shall not be permitted. 2.2.4 Insulation The conductor shall be insulated with a suitable thermoplastic material. Examples of suitable materials are: polyolefin; PVC; fluoropolymer; low-smoke zero halogen thermoplas

45、tic material. The insulation may be solid or cellular with or without a solid dielectric skin. The insulation shall be continuous and shall have a thickness such that the completed cable meets the specified requirements. The nominal thickness of insulation shall be compatible with the method of cond

46、uctor connection. 2.2.5 Colour code of insulation The colour code is not specified but shall be indicated in the relevant detail specification. The colours shall be readily identifiable and shall correspond reasonably with the standard colours shown in IEC 60304. NOTE It is acceptable to mark or str

47、ipe the “a“ wire with the colour of the “b“ wire to facilitate pair identification. 2.2.6 Cable element The cable element shall be a pair or quad adequately twisted to aid pair/quad identification. 2.2.7 Screening of the cable element When required, a screen for the cable element may be provided. Th

48、e screen shall be in accordance with 2.2.7 of IEC 61156-1:2002. 8 61156-3 IEC:2008(E) 2.2.8 Cable make-up The cable elements shall be assembled to form the cable core. The core of the cable may be wrapped with a protective layer of non-hygroscopic and non- wicking material. 2.2.9 Screening of the ca

49、ble core When required by the relevant detail specification, a screen for the cable core may be provided. The screen shall be in accordance with 2.2.9 of IEC 61156-1:2002. 2.2.10 Sheath The sheath material shall consist of a suitable thermoplastic material. Examples of suitable materials are: polyolefin; PVC; fluoropolymer; low smoke zero halogen thermoplastic material. The sheath shall be continuous, having a thickness as uniform as possible. A non-metall