SIST EN 81346-1:2009

Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations - Part 1: Basic rules (IEC 81346-1:2009)

This part of IEC 81346, published jointly by IEC and ISO, establishes general principles for the structuring of systems including structuring of the information about systems. Based on these principles, rules and guidance are given for the formulation of unambiguous reference designations for objects in any system. The reference designation identifies objects for the purpose of creation and retrieval of information about an object, and where realized about its corresponding component. A reference designation labelled at a component is the key to find information about that object among different kinds of documents. The principles are general and are applicable to all technical areas (for example mechanical engineering, electrical engineering, construction engineering, process engineering). They can be used for systems based on different technologies or for systems combining several technologies.

Industrielle Systeme, Anlagen und Ausrüstungen und Industrieprodukte - Strukturierungsprinzipien und Referenzkennzeichnung - Teil 1: Allgemeine Regeln (IEC 81346-1:2009)

Systèmes industriels, installations et appareils, et produits industriels - Principes de structuration et désignations de référence - Partie 1: Règles de base (CEI 81346-1:2009)

La CEI 81346-1:2009 publié conjointement par la CEI et l'ISO établit les principes généraux pour la structuration des systèmes y compris la structuration des informations sur ces systèmes. Sur la base de ces principes, des règles et des lignes directrices sont données pour la formulation de désignations de référence non ambiguës applicables aux objets d'un système quel qu'il soit. La désignation de référence identifie des objets afin de la création et de la récupération d'informations sur un objet, et où réalisé au sujet de son composant correspondant. Cette édition inclut par rapport à la précédente les modifications techniques majeures suivantes:  - un nouvel article d'introduction donnant une description et une explication des concepts utilisés dans le cadre de la présente publication;  - une description plus complète des principes et des règles de structuration;  - l'introduction d''autres aspects' auxquels on assigne le signe # comme préfixe;  - la suppression du concept de groupe de désignations de référence;  - le terme spécifique 'transition' a été évité et remplacé par une description textuelle améliorée de ce phénomène en annexe D;  - l'introduction d'un nouvel article concernant l'étiquetage,  - le retrait des anciennes annexes à l'exception de celle qui représente un exemple de l'application des désignations de référence au sein d'un système;  - l'introduction d'une nouvelle annexe expliquant la manipulation des objets;  - l'introduction de 4 nouvelles annexes correspondant à une réorganisation des exemples détaillés ou des explications.

Industrijski sistemi, inštalacije in oprema ter industrijski izdelki - Načela strukturiranja in referenčne oznake - 1. del: Osnovna pravila (IEC 81346-1:2009)

General Information

• Status: Published
• Publication Date: 12-Oct-2009
• ICS: 01.110 - Technical product documentation
• ICS: 29.020 - Electrical engineering in general
• Technical Committee: EDO - Documentation and graphical symbols
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 07-Oct-2009
• Due Date: 12-Dec-2009
• Completion Date: 13-Oct-2009
• Ref Project: EN 81346-1:2009 - Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations - Part 1: Basic rules

Relations

• Replaces: SIST EN 61346-1:1997 - Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations -- Part 1: Basic rules
• Effective Date: 01-Dec-2009
• Replaced By: SIST EN IEC 81346-1:2022 - Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations - Part 1: Basic rules (IEC 81346-1:2022)
• Effective Date: 17-May-2022
• Replaces: SIST EN 61346-1:1997 - Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations -- Part 1: Basic rules
• Effective Date: 28-Jan-2023
• Revised: SIST EN 61346-1:1997 - Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations -- Part 1: Basic rules
• Effective Date: 07-Aug-2012

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 81346-1:2009
01-december-2009
1DGRPHãþD
SIST EN 61346-1:1997
,QGXVWULMVNLVLVWHPLLQãWDODFLMHLQRSUHPDWHULQGXVWULMVNLL]GHONL1DþHOD
VWUXNWXULUDQMDLQUHIHUHQþQHR]QDNHGHO2VQRYQDSUDYLOD,(&
Industrial systems, installations and equipment and industrial products - Structuring
principles and reference designations - Part 1: Basic rules (IEC 81346-1:2009)
Industrielle Systeme, Anlagen und Ausrüstungen und Industrieprodukte -
Strukturierungsprinzipien und Referenzkennzeichnung - Teil 1: Allgemeine Regeln (IEC
81346-1:2009)
Systèmes industriels, installations et appareils, et produits industriels - Principes de
structuration et désignations de référence - Partie 1: Règles de base (CEI 81346-1:2009)
Ta slovenski standard je istoveten z: EN 81346-1:2009
ICS:
01.110 7HKQLþQDGRNXPHQWDFLMD]D Technical product
L]GHONH documentation
29.020 Elektrotehnika na splošno Electrical engineering in
general
SIST EN 81346-1:2009 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 81346-1:2009

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SIST EN 81346-1:2009

EUROPEAN STANDARD
EN 81346-1

NORME EUROPÉENNE
October 2009
EUROPÄISCHE NORM

ICS 01.110; 29.020 Supersedes EN 61346-1:1996


English version


Industrial systems, installations and equipment and industrial products -
Structuring principles and reference designations -
Part 1: Basic rules
(IEC 81346-1:2009)


Systèmes industriels, installations  Industrielle Systeme, Anlagen
et appareils, et produits industriels - und Ausrüstungen und Industrieprodukte -
Principes de structuration Strukturierungsprinzipien
et désignations de référence - und Referenzkennzeichnung -
Partie 1: Règles de base Teil 1: Allgemeine Regeln
(CEI 81346-1:2009) (IEC 81346-1:2009)




This European Standard was approved by CENELEC on 2009-08-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status 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 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, Cyprus, 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.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: Avenue Marnix 17, B - 1000 Brussels


© 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 81346-1:2009 E

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SIST EN 81346-1:2009
EN 81346-1:2009 - 2 -
Foreword
The text of document 3/947/FDIS, future edition 1 of IEC 81346-1, prepared by IEC TC 3, Information
structures, documentation and graphical symbols, in close co-operation with ISO TC 10, Technical
product documentation, was submitted to the IEC-CENELEC parallel vote and was approved by
CENELEC as EN 81346-1 on 2009-08-01.
This European Standard supersedes EN 61346-1:1996.
EN 81346-1:2009 includes the following substantial changes with respect to EN 61346-1:1996:
– a new introductory clause providing a description and explanation to the concepts used elsewhere in
the publication;
– a more comprehensive description of the structuring principles and rules for structuring are provided;
– “other aspects” are introduced, and the prefix sign # is assigned to these aspects;
– the concept of reference designation group has been deleted;
– the specific term “transition” has been avoided and been replaced by an improved textual description
of this phenomenon in Annex D;
– a new clause about labelling is introduced;
– the old annexes have been removed with the exception of the annex showing an example of the
application of reference designations within a system;
– a new annex explaining the manipulation of objects is introduced;
– 4 new annexes are introduced as rearrangement of detailed examples or explanatory information.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2010-05-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2012-08-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________

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SIST EN 81346-1:2009
- 3 - EN 81346-1:2009

Endorsement notice
The text of the International Standard IEC 81346-1:2009 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60297-3-101 NOTE  Harmonized as EN 60297-3-101:2004 (not modified).
IEC 61082-1 NOTE  Harmonized as EN 61082-1:2006 (not modified).
IEC 61335-1 NOTE  Harmonized as EN 61335-1:2008 (not modified).
IEC 62023 NOTE  Harmonized as EN 62023:2000 (not modified).
IEC 62027 NOTE  Harmonized as EN 62027:2000 (not modified).
IEC 62491 NOTE  Harmonized as EN 62491:2008 (not modified).
IEC 81346-2 NOTE  Harmonized as EN 81346-2:2009 (not modified).
ISO 3166-1 NOTE  Harmonized as EN ISO 3166-1:2006 (not modified).
ISO 4157 NOTE  Harmonized in EN ISO 4157 series (not modified).
__________

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SIST EN 81346-1:2009
EN 81346-1:2009 - 4 -
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 applies. 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

1)
ISO/IEC 646 - Information technology - ISO 7-bit coded - -
character set for information interchange




1)
Undated reference.

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SIST EN 81346-1:2009

IEC 81346-1
Edition 1.0 2009-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial systems, installations and equipment and industrial products –
Structuring principles and reference designations –
Part 1: Basic rules

Systèmes industriels, installations et appareils, et produits industriels –
Principes de structuration et désignations de référence –
Partie 1: Règles de base

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XC
CODE PRIX
ICS 01.110; 29.020 ISBN 2-8318-1054-7

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SIST EN 81346-1:2009
– 2 – 81346-1 © IEC:2009
CONTENTS
FOREWORD.6
INTRODUCTION.8
0.1 General.8
0.2 Basic requirements for this standard .8
0.3 Required properties of the standard .9
1 Scope.11
2 Normative references .11
3 Terms and definitions .11
4 Concepts .13
4.1 Object .13
4.2 Aspect.14
4.3 Technical system.15
4.4 Structuring .16
4.5 Function .16
4.6 Products and components .16
4.7 Location .17
4.8 Types, occurrences and individuals .18
5 Structuring principles.20
5.1 General .20
5.2 Forming structures (i.e. types and occurrences) .21
5.3 Function-oriented structure.24
5.4 Product-oriented structure .25
5.5 Location-oriented structure.26
5.6 Structures based on “other aspects” .27
5.7 Structures based on more than one aspect.28
6 Construction of reference designations.29
6.1 General .29
6.2 Format of reference designations .29
6.2.1 Single level.29
6.2.2 Multi-level.30
6.2.3 Use of letter codes .31
6.3 Different structures within the same aspect .31
7 Reference designation set .32
8 Designation of locations .33
8.1 General .33
8.2 Assemblies.33
9 Presentation of reference designations.35
9.1 Reference designations.35
9.2 Reference designations set .36
9.3 Presentation of identifiers for the top-node .37
10 Labelling .38
Annex A (informative) Historical background.39
Annex B (informative) Establishment and life cycle of objects .41
Annex C (informative) Manipulation of objects .52
Annex D (informative) Interpretation of reference designations using different aspects .64

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SIST EN 81346-1:2009
81346-1 © IEC:2009 – 3 –
Annex E (normative) Object represented with several top nodes in an aspect .67
Annex F (informative) Examples of multiple structures based on the same aspect .69
Annex G (informative) Example of structures and reference designations .73
Annex H (informative) Example of reference designations within a system.75
Bibliography.82

Figure 1 – International standards providing a consistent system for designation,
documentation and presentation of information .10
Figure 2 – Illustration of an object.13
Figure 3 – Aspects of an object.15
Figure 4 – Illustration of a function and its sub-functions.16
Figure 5 – Illustration of the concepts product, component, type, individual and
occurrence.19
Figure 6 – Illustration of structural decomposition of an object from different aspects .20
Figure 7 – Illustration of a function-oriented decomposition and product-oriented
composition .21
Figure 8 – Structure tree of object A (alternative 1).22
Figure 9 – Structure tree of object A (alternative 2).22
Figure 10 – Constituents in one aspect of object type 1 .23
Figure 11 – Constituents in one aspect of object type 2 .23
Figure 12 – Constituents in one aspect of object type 5 .23
Figure 13 – Structure tree of object type 1 .24
Figure 14 – Illustration of a function-oriented structure .25
Figure 15 – Illustration of a product-oriented structure .26
Figure 16 – Illustration of a location-oriented structure.27
Figure 17 – Example of the use of “other aspect” .28
Figure 18 – Illustration of an object accessible from three aspects, and where these
aspects are used also for internal structuring.28
Figure 19 – Illustration of an object identified by means of one aspect and with sub-
objects identified by means of another aspect.29
Figure 20 – Examples of single-level reference designations .30
Figure 21 – Relation between a multi-level reference designation and its single-level
reference designations.30
Figure 22 – Examples of multi-level reference designations with multiple prefix signs .31
Figure 23 – Example of reference designation sets.32
Figure 24 – Example of designation of mounting planes inside a factory build assembly .34
Figure 25 – Examples of designation of locations inside a factory build assembly.35
Figure 26 – Examples of presentations of multi-level reference designations .36
Figure 27 – Presentation of reference designations of a reference designation set .37
Figure 28 – Different objects on a site identified with top node identifiers.37
Figure 29 – The common initial portion of reference designations .38
Figure 30 – Labelling of reference designations .38
Figure A.1 – Scope of reference designation standards .39
Figure B.1 – Development situations of an object .41
Figure B.2 – The object’s life cycle .44

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SIST EN 81346-1:2009
– 4 – 81346-1 © IEC:2009
Figure C.1 – Integration of external information by copying.53
Figure C.2 – Integration of an external object by referencing .54
Figure C.3 – Three independently defined objects .54
Figure C.4 – Three separate objects with mutual relations .55
Figure C.5 – The three objects are merged into one.55
Figure C.6 – Overview of the process system .56
Figure C.7 – Tree-like structures of the technical system .57
Figure C.8 – Completed structures of the technical system .58
Figure C.9 – Structures with designated sub-objects.58
Figure C.10 – Structures with some merged-and shared objects .59
Figure C.11 – Relations expressed by reference designation sets in which both
designations are unambiguous.60
Figure C.12 – Relations expressed by reference designation sets in which one
designation is ambiguous.60
Figure C.13 – Situations in the beginning of an object’s life cycle accessible from three
aspects.61
Figure C.14 – Situations in the beginning of the life cycle of closely related objects,
each accessible from one aspect .62
Figure D.1 – Shift from function to product aspect.64
Figure D.2 – Shift from product to function aspect.64
Figure D.3 – Shift from product to location aspect.65
Figure D.4 – Shift from location to product aspect.65
Figure D.5 – Shift from function to location aspect .66
Figure D.6 – Shift from location to function aspect .66
Figure E.1 – Object represented with several independent top nodes in one aspect.67
Figure E.2 – Example of multi-level reference designations using different aspects of
an object with several independent top nodes in one aspect .68
Figure F.1 – Illustration of the concept of additional functional views of an industrial
process plant .69
Figure F.2 – Location-oriented structure of a plant.70
Figure F.3 – Location-oriented structure within an assembly unit .70
Figure F.4 – Location-oriented structures of the plant .71
Figure F.5 – Example of additional product-oriented structures .72
Figure G.1 – Function-oriented structure of object type 1.73
Figure G.2 – Function-oriented structure of object type 2.73
Figure G.3 – Function-oriented structure of object type 5.73
Figure G.4 – Concatenated function-oriented structure tree of object type A .74
Figure H.1 – Process flow diagram for a material handling plant .75
Figure H.2 – Overview diagram of part of the process system (=V1) and part of the
power supply system (=G1) .76
Figure H.3 – Structure tree for parts of the material handling plant .77
Figure H.4 – Layout drawing of the components of the MCC =G1=W1 .78
Figure H.5 – Layout drawing of the locations of the MCC =G1=W1 .79
Figure H.6 – Motor starter.79
Figure H.7 – Product- and location-oriented structure trees for the MCC.80

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SIST EN 81346-1:2009
81346-1 © IEC:2009 – 5 –

Table 1 – Identification of types, occurrences and individuals within different contexts .19
Table C.1 – Possible reference designation sets.59
Table H.1 – Reference designation set for the constituents of the products MCC and
motor starter .81

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SIST EN 81346-1:2009
– 6 – 81346-1 © IEC:2009
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

INDUSTRIAL SYSTEMS, INSTALLATIONS
AND EQUIPMENT AND INDUSTRIAL PRODUCTS –
STRUCTURING PRINCIPLES AND REFERENCE DESIGNATIONS –

Part 1: Basic rules


FOREWORD
1) The International Electrotechnical Commission (IEC) 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 addition 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
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 conditions 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 National 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 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 IEC Publication and the corresponding 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 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, 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 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 IEC 81346-1 has been prepared by IEC technical committee 3:
Information structures, documentation and graphical symbols, in close co-operation with ISO
technical committee 10: Technical product documentation.
It is published as a double logo standard.
This edition cancels and replaces the first edition of IEC 61346-1, published in 1996. This
edition constitutes a technical revision.
This edition includes the following substantial changes with respect to the first edition of
IEC 61346-1:
– a new introductory clause providing a description and explanation to the concepts used
elsewhere in the publication;
– a more comprehensive description of the structuring principles and rules for structuring
are provided;

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SIST EN 81346-1:2009
81346-1 © IEC:2009 – 7 –
– “other aspects” are introduced, and the prefix sign # is assigned to these aspects;
– the concept of reference designation group has been deleted;
– the specific term “transition” has been avoided and been replaced by an improved textual
description of this phenomenon in annex D;
– a new clause about labelling is introduced;
– the old annexes have been removed with the exception of the annex showing an example
of the application of reference designations within a system;
– a new annex explaining the manipulation of objects is introduced;
– 4 new annexes are introduced as rearrangement of detailed examples or explanatory
information.
The text of this standard is based on the following documents:
FDIS Report on voting
3/947/FDIS 3/958/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. 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 the International Standard 81346 series, formerly IEC 61346 series, under
the general 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 updated at the time of the next edition.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance
...