1、BSI Standards PublicationGeneric cabling systems Specification for the testing of balanced communicationcabling in accordance with ISO/IEC 11801Part 2-24: Cord and work area cordcategory 7A Blank detail specificationBS IEC 61935-2-24:2015National forewordThis British Standard is the UK implementatio
2、n of IEC 61935-2-24:2015.The UK participation in its preparation was entrusted to TechnicalCommittee EPL/46, Cables, wires and waveguides, radio frequency connectors and accessories for communication and signalling.A list of organizations represented on this committee can be obtained onrequest to it
3、s secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 82280 3ICS 33.120.10Compliance with a British Standard c
4、annot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2015.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS IEC 61935-2-24:2015IEC 61935-2-24 Edition 1.0 2015-07
5、 INTERNATIONAL STANDARD NORME INTERNATIONALE Generic cabling systems Specification for the testing of balanced communication cabling in accordance with ISO/IEC 11801 Part 2-24: Cord and work area cord category 7A Blank detail specification Systmes de cblage gnrique Spcification relative aux essais d
6、e cblages de tlcommunications symtriques selon lISO/IEC 11801 Partie 2-24: Cordons et cordons de zone de travail de catgorie 7A Spcification particulire cadre INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 33.120.10 ISBN 978-2-8322-2817-3 Registered trademar
7、k of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. colo
8、urinsideBS IEC 61935-2-24:2015 2 IEC 61935-2-24:2015 IEC 2015 CONTENTS FOREWORD . 3 1 Scope 5 2 Normative references. 5 3 Guidance for preparation of detail specifications. 6 4 Blank detail specification for cords and work area cords category 7A8 BS IEC 61935-2-24:2015IEC 61935-2-24:2015 IEC 2015 3
9、INTERNATIONAL ELECTROTECHNICAL COMMISSION _ GENERIC CABLING SYSTEMS SPECIFICATION FOR THE TESTING OF BALANCED COMMUNICATION CABLING IN ACCORDANCE WITH ISO/IEC 11801 Part 2-24: Cord and work area cord category 7A Blank detail specification FOREWORD 1) The International Electrotechnical Commission (IE
10、C) is a worldwide organization 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 additio
11、n to other activities, IEC publishes 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
12、 in the subject dealt with may 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 co
13、nditions determined by agreement 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 N
14、ational Committees. 3) IEC 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
15、 way in which they are used 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
16、IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity
17、. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the 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
18、 its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, 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
19、other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications 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
20、the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61935-2-24 has been prepared by IEC technical committee 46: Cables, wires, waveguides, R.F. connectors, R.F. and microwave passive components and accessories. The
21、 text of this standard is based on the following documents: FDIS Report on voting 46/555/FDIS 46/561/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. BS IEC 61935-2-24:2015 4 IEC 61935-2-24:2015 IEC 2015 This publ
22、ication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 61935 series, published under the general title Generic cabling systems Specification for the testing of balanced communication cabling in accordance with ISO/IEC 11801, can be found on the IEC
23、 website. Future standards in this series will carry the new general title as cited above. Titles of existing standards in this series will be updated at the time of the next edition. The committee has decided that the contents of this publication will remain unchanged until the stability date indic
24、ated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IMPORTANT The colour inside logo on the cover page of this publication indicates that it con
25、tains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. BS IEC 61935-2-24:2015IEC 61935-2-24:2015 IEC 2015 5 GENERIC CABLING SYSTEMS SPECIFICATION FOR THE TESTING OF BALANCED COMMUNICATION CABLI
26、NG IN ACCORDANCE WITH ISO/IEC 11801 Part 2-24: Cord and work area cord category 7A Blank detail specification 1 Scope This part of IEC 61935, which is a blank detail specification, describes cords and work area cords category 7A, as defined in ISO/IEC 11801 series. According to the above cabling spe
27、cifications these cords are Category 7Acompliant for which the requirements are given in ISO /IEC 11801 series. This specification should be used in conjunction with IEC 61935-2, IEC 61156-1, IEC 61156-6 and IEC 60603-7-71. The blank detail specification determines the layout and style for detail sp
28、ecifications describing cords with transmission characteristics up to 1 000 MHz for digital communications. Detail specifications, based on the blank detail specification, may be prepared by a national organization, a manufacturer, or a user. Test configuration applicable to cords is detailed in IEC
29、 61935-2. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including
30、 any amendments) applies. IEC 60603-7-71, Connectors for electronic equipment Part 7-71: Detail specification for 8-way, shielded, free and fixed connectors, for data transmissions with frequencies up to 1 000 MHz IEC 60794-1-22, Optical fibre cables Part 1-22: Generic specification Basic optical ca
31、ble test procedures Environmental tests methods IEC 61156-1:2007, Multicore and symmetrical pair/quad cables for digital communications Part 1: Generic specification IEC 61156-5, Multicore and symmetrical pair/quad cables for digital communications Part 5: Symmetrical pair/quad cables with transmiss
32、ion characteristics up to 1 000 MHz - Horizontal floor wiring Sectional specification (disponible en anglais seulement) IEC 61156-6:2010, Multicore and symmetrical pair/quad cables for digital communications Part 6: Symmetrical pair/quad cables with transmission characteristics up to 1000 MHz Work a
33、rea wiring Sectional specification IEC 61156-6:2010/AMD1:2012 IEC 61935-2:2010, Specification for the testing of balanced and coaxial information technology cabling Part 2: Cords as specified in ISO/IEC 11801 and related standards BS IEC 61935-2-24:2015 6 IEC 61935-2-24:2015 IEC 2015 IEC 62012-1:200
34、2, Multicore and symmetrical pair/quad cables for digital communications to be used in harsh environment Part 1: Generic specification ISO/IEC 11801, Information technology Generic cabling for customer premises ISO/IEC 24702, Information technology Generic cabling Industrial premises 3 Guidance for
35、preparation of detail specifications It is necessary to keep the transmission characteristics indicated in the relevant sectional specification for the referenced category number, i.e. 7Aand the characteristic impedance. The detail specification shall be written in accordance with the layout of the
36、blank detail specification, which forms part of this standard. When a characteristic does not apply, then na (for not applicable) should be entered in the appropriate space. When a characteristic applies but a specific value is not considered necessary, then ns (for not specified) should be entered
37、in the appropriate space. When ns is used, the appropriate requirement in the sectional specification should apply. The numbers shown in brackets in this and the following pages correspond to the following items of required information, which should be entered in the spaces provided. 1 Name and addr
38、ess of the organization that has prepared the document. 2 IEC document number, issue number and date of issue. 3 Address of the organization from which the document is available. 4 Related documents. 5 Any other reference to the cable, national reference, trade name, etc. 6 A complete description of
39、 the cord which shall include a) type and number of elements; b) nominal impedance; c) screening; d) application; e) specific category of cord, cable and connectors; f) other distinguishing performance characteristics. EXEMPLE 4-pair, shielded twisted pair cable for use in work area wiring, having a
40、 nominal impedance of 100 , and meeting the transmission requirements of category 7Aand the coupling attenuation requirements of type I. 7 Details of the cable material and construction. 8 Special requirements for bending radius or operating temperatures. 9 List of cable characteristics. They are se
41、parated into electrical, transmission, mechanical and environmental characteristics. The recommended environmental severities are derived from the MICE table requirements of ISO/IEC 24702. These recommendations were made to better reflect the cable behaviour. It should be noted that ingress requirem
42、ents using particles is not applicable to a cable. The temperature requirements are addressed in 8. Rapid change of temperature is irrelevant for cables. BS IEC 61935-2-24:2015IEC 61935-2-24:2015 IEC 2015 7 Electromagnetic requirements coming from the MICE table of ISO/IEC 24702 have been dealt with
43、 by using the requirements that are given for transfer impedance, screening attenuation and coupling attenuation. ESD requirements are considered non-applicable. 10 Appropriate subclause references in the generic specification IEC 61156-1/IEC 61935-2. 11 Appropriate subclause references in the secti
44、onal specification IEC 61156-6/ IEC 61935-2. 12 Requirements applicable to this cable. The values shall meet the requirements of sectional specification IEC 61156-6 for category 7A. For those limits that are not related to the cable category and for which a choice is proposed, they have to be chosen
45、 to meet the related MICE table requirements. 13 Comments Relevant remarks. BS IEC 61935-2-24:2015 8 IEC 61935-2-24:2015 IEC 2015 4 Blank detail specification for cords and work area cords category 7A1 Prepared by: 2 Document: Issue: Date: 3 Available from: 4 Sectional specification for the testing
46、of cords:IEC 61935-2 Blank detail specification: IEC 61935-2-24 5 Additional references: ISO/IEC 11801 6 Cord description: a) Specific category of cord, cable and connectors b) Nominal impedance c) Connector type d) Cable e) Conductors material f) Screening g) Housing h) MICE 7 Cable assembly constr
47、uction: IEC 61935-2: 2010 4.1 IEC 61156-1: 2007 IEC 61156-6: 2010 5.2.6 5.2.6 5.2.7 Sheath Material Nominal thicknessbColour Maximum overall Diameter Marking 5.2.8 Packaging IEC 60603-7-71 Visual inspection IEC 61935-2:2010 5.1 bIt is assumed that a thickness of 0,5 mm is sufficient for spark testin
48、g up to 3 kV, thickness larger than 0,8 mm is assumed to be sufficient for spark testing up to 5 kV. 8 Minimum bending radius for static bending: mm Minimum bending radius for dynamic bending: mm Temperature range for installation : C Operating temperature range under static conditions: 10 C to +60
49、C (C1), 25 C to +70 C (C2), 40 C to +70 C (C3) c IEC Housing BS IEC 61935-2-24:2015IEC 61935-2-24:2015 IEC 2015 9 9 Characteristics 10 IEC 61156-1:2007 Subclause 11 IEC 61156-6:2010 Subclause 12 Recommended severities/ Requirements 13 Comments Electrical characteristics 6.2 6.2 DC loop resistance 6.2.1 6.2.1 Assumed to be met by design Resistance unbalance 6.2.2 6.
