1、 IEC 81346-2Edition 1.0 2009-07INTERNATIONAL STANDARD NORME INTERNATIONALEIndustrial systems, installations and equipment and industrial products Structuring principles and reference designations Part 2: Classification of objects and codes for classes Systmes industriels, installations et appareils,
2、 et produits industriels Principes de structuration et dsignations de rfrence Partie 2: Classification des objets et codes pour les classes IEC81346-2:2009 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2009 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this
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17、NTERNATIONALEIndustrial systems, installations and equipment and industrial products Structuring principles and reference designations Part 2: Classification of objects and codes for classes Systmes industriels, installations et appareils, et produits industriels Principes de structuration et dsigna
18、tions de rfrence Partie 2: Classification des objets et codes pour les classes INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XICS 01.110; 29.020 PRICE CODECODE PRIXISBN 2-8318-1053-5 2 81346-2 IEC:2009 CONTENTS FOREWORD.4 INTRODUCTION.6 0.1 General .6 0.2 Basic
19、 requirements for this standard .6 1 Scope.8 2 Normative references .8 3 Terms and definitions .8 4 Classification principles 8 4.1 General .8 4.2 Assigning objects to classes9 5 Classes of objects 11 5.1 Classes of objects according to intended purpose or task11 5.2 Subclasses of objects according
20、to intended purpose or task 17 5.3 Classes of objects according to infrastructure .36 Annex A (informative) Object-classes related to a generic process 39 Annex B (informative) Object-classes related to objects in a generic infrastructure 41 Figure 1 Constituent objects 7 Figure 2 The basic concept8
21、 Figure 3 Classification of objects in a measuring circuit .10 Figure A.1 Object-classes related to a process 39 Figure B.1 Object-classes related to objects in a generic infrastructure42 Table 1 Classes of objects according to their intended purpose or task (Codes A to D)12 Table 1 (continued, code
22、s E to J)13 Table 1 (continued, codes K to P) .14 Table 1 (continued, codes Q to U) 15 Table 1 (continued, codes V to Z) .16 Table 2 Definitions and letter codes of subclasses related to main classes (Class A).18 Table 2 (continued, class B) .19 Table 2 (continued, class C) .20 Table 2 (continued, c
23、lass E) .21 Table 2 (continued, class F)22 Table 2 (continued, class G) .23 Table 2 (continued, class H) .24 Table 2 (continued, class K) .25 Table 2 (continued, class M).26 Table 2 (continued, class P) .27 Table 2 (continued, class Q) .28 Table 2 (continued, class R) .29 Table 2 (continued, class S
24、) .30 Table 2 (continued, class T)31 81346-2 IEC:2009 3 Table 2 (continued, class U) .32 Table 2 (continued, class V) .33 Table 2 (continued, class W).34 Table 2 (continued, class X) .35 Table 3 Classes of infrastructure objects .37 Table 4 Examples of branch-related classes B to U of Table 3.38 4 8
25、1346-2 IEC:2009 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ INDUSTRIAL SYSTEMS, INSTALLATIONS AND EQUIPMENT AND INDUSTRIAL PRODUCTS STRUCTURING PRINCIPLES AND REFERENCE DESIGNATIONS Part 2: Classification of objects and codes for classes FOREWORD 1) The International Electrotechnical Commission (IEC
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36、 International Standard IEC 81346-2 has been prepared by IEC technical committee 3: Information structures, documentation and graphical symbols and ISO technical committee 10: Technical product documentation. It is published as a double logo standard. This edition cancels and replaces the first edit
37、ion of IEC 61346-2, published in 2000 and the first edition of IEC/PAS 62400, published in 2005. This edition includes the following technical changes with respect to IEC 61346-2 Ed.1: all rules concerning the application of letter codes have been removed as these should be included in another publi
38、cation dealing with the application of letter codes within reference designations; and, with respect to IEC/PAS 62400 Ed.1: 81346-2 IEC:2009 5 the definitions of the sub-classes have been reviewed and made consistent; the basis for the sub-classification is indicated; some new subclasses for class B
39、 and class P have been added; the table of terms sorted according to the two-letter code has been removed; The text of this standard is based on the following documents: FDIS Report on voting 3/945/FDIS 3/957RVDFull information on the voting for the approval of this standard can be found in the repo
40、rt on voting indicated in the above table. In ISO, the standard has been approved by 12 members out of 13 having cast a vote. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts of IEC 81346 series, formerly IEC 61346 series, published under the g
41、eneral title Industrial systems, installations and equipment and industrial products Structuring principles and reference designations, can be found on the IEC website. Future standards in this series will carry the new general number 81346. Numbers of existing standards in this series will be updat
42、ed at the time of the next edition. The 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
43、be reconfirmed, withdrawn, replaced by a revised edition, or amended. 6 81346-2 IEC:2009 INTRODUCTION 0.1 General The aim of this part of IEC 81346 is to establish classification schemes for objects with associated letter codes which can be applied throughout all technical areas, e.g. electrical, me
44、chanical and civil engineering as well as all branches of industry, e.g. energy, chemical industry, building technology, shipbuilding and marine technology. The letter codes are intended for use with the rules for the construction of reference designations in accordance with IEC 81346-1. Annex A ill
45、ustrates how objects may be classified according to their intended purpose or task related to a generic process. Annex B illustrates how objects may be classified according to their position in an infrastructure. 0.2 Basic requirements for this standard The basic requirements were developed during t
46、he preparation of IEC 61346-2 Ed. 1, and accepted by vote by the national committees. NOTE These basic requirements concern the development of the letter code classification system in this standard and not its application. They are therefore not normative vis-vis the application of this standard. (1
47、) Letter codes shall be based on a classification scheme. (2) A classification scheme is the set of definitions for the types of objects (for example, a classification scheme for function types containing the definition of the different function types of objects). (3) A classification scheme shall a
48、llow for hierarchical classification of types of objects, i.e. subclasses and superclasses. (4) A letter code for a type of object shall be independent of the actual position of the instances of that type of object in a system. (5) Distinct classes shall be defined on each level of the classificatio
49、n scheme. (6) The definitions of the classes of a particular level within a classification scheme shall have a common basis (for example, a classification scheme that, on one level, classifies objects according to colour shall not contain classes that classify objects by shape). The basis, however, may vary from one level to another. (7) A letter code should indicate the type of object and not an
