1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsWB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1Industrial systems, installationsand equipment and industrialproducts Labelling of cablesand coresBS EN 62491:200
2、8This Draft for Development was published under the authority of the Standards Policy and Strategy Committee on 31 January 2009NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LANational forewordThis British Standard is the UK implementation of EN 62491:2008. It is identi-cal to IE
3、C 62491:2008.The UK participation in its preparation was entrusted to Technical CommitteeGEL/3, Documentation and graphical symbols.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisio
4、ns of acontract. Users are responsible for its correct application. BSI 200ISBN 978 0 580 58257 8ICS 01.110; 29.020; 29.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 62491:2008
5、9This Draft for Development was published under the authority of the Standards Policy and Strategy Committee on 31 January 2009EUROPEAN STANDARD EN 62491 NORME EUROPENNE EUROPISCHE NORM September 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Elec
6、trotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62491:2008 E ICS 01.110; 29.020.20 English version Indus
7、trial systems, installations and equipment and industrial products - Labelling of cables and cores (IEC 62491:2008) Systmes industriels, installations et appareils et produits industriels - Etiquetage des cbles et des conducteurs isols (CEI 62491:2008) Industrielle Systeme, Anlagen und Ausrstungen u
8、nd Industrieprodukte -Beschriftung von Kabeln / Leitungen und Adern (IEC 62491:2008) This European Standard was approved by CENELEC on 2008-07-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status
9、 of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A
10、 version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cypr
11、us, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 62491:2008EN 62491:2008
12、 - 2 - Foreword The text of document 3/849/CDV, future edition 1 of IEC 62491, prepared by IEC TC 3, Information structures, documentation and graphical symbols, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62491 on 2008-07-01. The following dates were fixed: late
13、st date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2009-04-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2011-07-01 Annex ZA has been added by CENELEC. _ Endorsem
14、ent notice The text of the International Standard IEC 62491:2008 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following note has to be added for the standard indicated: IEC 60446 NOTE Harmonized as EN 60446:2007 (not modified
15、). _ BS EN 62491:2008- 3 - EN 62491:2008 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited appl
16、ies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60445 (mod) -1)Basic
17、and safety principles for man-machine interface, marking and identification - Identification of equipment terminals and conductor terminations EN 60445 20072)IEC 60757 -1)Code for designation of colours HD 457 S1 19852)IEC 61082-1 2006 Preparation of documents used in electrotechnology - Part 1: Rul
18、es EN 61082-1 2006 IEC 61175 -1)Industrial systems, installations and equipment and industrial products - Designation of signals EN 61175 20052)IEC 61666 -1)Industrial systems, installations and equipment and industrial products - Identification of terminals within a system EN 61666 19972)IEC 81346-
19、1 200X3)Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations - Part 1: Basic rules - - ISO/IEC 646 -1)Information technology - ISO 7-bit coded character set for information interchange - - 1)Undated reference. 2)Valid edition at
20、date of issue. 3)To be published. BS EN 62491:2008 2 62491 IEC:2008 CONTENTS INTRODUCTION.6 1 Scope.7 2 Normative references .7 3 Terms and definitions .8 4 Rules9 4.1 General requirements9 4.2 Use of designated cable cores.10 4.3 Use of additional labelling .10 5 Identification labelling.11 5.1 Gen
21、eral .11 6 Connection labelling .14 6.1 General .14 6.2 Local-end connection labelling 14 6.3 Remote-end connection labelling.15 6.4 Both-end connection labelling16 7 Signal labelling.17 7.1 General .17 7.2 Labelling by signal designation17 7.3 Labelling of cables for certain designated conductors18
22、 8 Composite labelling 19 9 Arrangement of additional labelling.20 9.1 General .20 9.2 Relative positions of the labelling 20 9.3 Characters to be used .20 10 Correspondence between labelling and documentation.21 11 Conformance to this standard.21 Annex A (informative) Examples of labelling .22 Bibl
23、iography30 Figure 1 Example of identification labelling of a single core cable (W23) and of a multi-core cable (W24) in which also the different cores are labelled 12 Figure 2 Example of identification labelling of cores where the initial part of the reference designation has been partly omitted 13
24、Figure 3 Example of local-end connection labelling14 Figure 4 Example of remote-end connection labelling for a connection inside a unit.15 Figure 5 Example of remote-end connection labelling for a cable between different units .16 Figure 6 Example of both-end connection labelling 17 Figure 7 Example
25、 of local-end connection labelling combined with signal labelling.19 Figure 8 Example of composite labelling in which both-end connection labelling is used together with identification labelling and signal labelling.19 Figure 9 Examples of arrangements of labelling on cores or cables. 20 Figure A.1
26、Circuit diagram used as a basis for the examples .22 BS EN 62491:200862491 IEC:2008 3 Figure A.2 Example of identification labelling.23 Figure A.3 Example of local-end labelling 24 Figure A.4 Example of both-end connection labelling .25 Figure A.5 Example of local end connection labelling with addit
27、ional information .26 Figure A.6 Example of signal labelling .27 Figure A.7 Example of composite labelling.28 Figure A.8 Example where use is made of the cable colours29 Table 1 Example of connection table in which the cable cores are identified by means of codes for their colour.10 Table 2 Connecti
28、on table corresponding to Figure 1 with labelling .12 Table 3 Connection table corresponding to Figure 2 with labelling .13 Table 4 Marking of certain designated conductors18 Table 5 Methods of labelling defined in this standard .21 BS EN 62491:2008 6 62491 IEC:2008 INTRODUCTION Additional labelling
29、 of cables and cores might be required within larger systems or installations with many cores of the same colour or with many cables, and where therefore the use of the designations provided by the cable manufacturer only would be ambiguous. Due consideration should be given to the fact that additio
30、nal labelling will cause additional cost, usually increasing with the number of characters in the labelling string and the number of different labelling elements. The available space may also impose restrictions with regard to the number of characters, their height and the length of the labelling. A
31、s a general rule the use of additional labelling should therefore be limited to a necessary minimum and be kept as short as practicable. However, also the advantages and benefits should be taken into considerations in choosing additional labelling of cables and cores. It is important to notice that
32、a single machine or a system has different needs of information in the different phases of its lifecycles (assembling, production, service and maintenance). Additional labelling of cables and cores gives the following advantages: the possibilities to communicate and identify signals and connections
33、across different involved engineering disciplines and departments like: process engineering, software engineering, electrical engineering, mechanical/fluid engineering, control engineering; minimizing the time used to locate an eventual error (and the reason for it) in the test phase; saving time wh
34、en locating an eventual error (and the reason for it) in the service and maintenance phase; remove the doubt of which core should be connected to which terminal, when replacing components that are placed close to each other; if used in pre-planning, it gives a clear view for panel-builders, electric
35、ians/technicians; service/maintenance and system controllers which will minimize misunderstandings regarding connections. Besides being used in connections between terminal blocks, labelling can also be used when single core cables connect components inside units as: cubicle, pulpit, case, etc.; suc
36、h methods make possible: a rapid and secure cabling between the terminals of two objects; a rapid visual check of cabling, not necessarily looking up in the circuit diagrams; a correct and secure change of an object during the maintenance operations of plants. BS EN 62491:200862491 IEC:2008 7 INDUST
37、RIAL SYSTEMS, INSTALLATIONS AND EQUIPMENT AND INDUSTRIAL PRODUCTS LABELLING OF CABLES AND CORES 1 Scope This standard provides rules and guidelines for the labelling of cables and cores/conductors used in industrial installations, equipment and products, in order to maintain a clear relation between
38、 the technical documentation and the actual equipment and for other purposes. The following methods are described and designated: use of coloured cables and designated cores; additional identification labelling; additional connection labelling; and additional signal labelling. The physical design of
39、 the labels, the material to be used for the labels as well as cable manufacturers product bound marking of cables and cores are not part of this standard. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the
40、 edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60445, Basic and safety principles for man-machine interface, marking and identification Identification of equipment terminals and conductor terminations IEC 60757, C
41、ode for designation of colours IEC 61082-1:2006, Preparation of documents used in electrotechnology Part 1: Rules IEC 61175, Industrial systems, installations and equipment and industrial products Designation of signals IEC 81346-1, Industrial systems, installations and equipment and industrial prod
42、ucts Structuring principles and reference designations Part 1: Basic rules (to be published) IEC 61666, Industrial systems, installations and equipment and industrial products Identification of terminals within a system ISO/IEC 646, Information technology ISO 7-bit coded character set for informatio
43、n interchange BS EN 62491:2008 8 62491 IEC:2008 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 conductor (of a cable) part of a cable which has the specific function of carrying current IEV 461-01-01 3.2 cable assembly of one or more conduct
44、ors and/or optical fibres, with a protective covering and possibly filling, insulating and protective material IEV 151-12-38 3.3 core assembly comprising a conductor with its own insulation (and screens if any) IEV 461-04-04 3.4 terminal conductive part of a device, electric circuit or electric netw
45、ork, provided for connecting that device, electric circuit or electric network to one or more external conductors IEV 151-12-12, modified 3.5 terminal block assembly of terminals in a housing or body of insulating material to facilitate interconnection between multiple conductors IEV 581-06-36 3.6 t
46、erminal designation identifier of a terminal with respect to the object to which it belongs, related to one aspect of the object. IEC 61666, 3.8 3.7 signal designation unambiguous identifier of a signal within a system IEC 61175, 3.2 3.8 reference designation identifier of a specific object with res
47、pect to the system of which the object is a constituent, based on one or more aspects of that system 3.9 labelling (of a cable or core) label or labels attached to a cable or core indicating appropriate characteristics BS EN 62491:200862491 IEC:2008 9 3.10 identification labelling labelling showing
48、the identifier of an object as a constituent of a specific installation, system, equipment or product 3.11 connection labelling labelling of a cable or core showing the identifier of the terminal, terminal block or equipment to which it is connected 3.12 local-end connection labelling system of labe
49、lling of cables and cores where the labelling of the end of the cable or core refers to the terminal, terminal block or equipment to which it is connected 3.13 remote-end connection labelling system of labelling of cables and cores where the labelling of the end of the cable or core refers to the terminal, terminal block or equipment to which the other end of it is connected 3.14 both-end connecti
