EN IEC 81346-1:2022

Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations - Part 1: Basic rules

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. This document is also a horizontal publication intended for use by technical committees in preparation of publications related to reference designations in accordance with the principles laid down in IEC Guide 108.

Industrielle Systeme, Anlagen und Ausrüstungen und Industrieprodukte - Strukturierungsprinzipien und Referenzkennzeichnung - Teil 1: Allgemeine Regeln

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

L'IEC 81346-1:2022 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 recommandations 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 dans le but de créer et de récupérer des informations sur un objet et, lorsqu’elle est réalisée, au sujet de son composant correspondant. Une désignation de référence rattachée à un composant est la clef qui permet de trouver des informations sur cet objet parmi différentes sortes de documents. Les principes énoncés sont généraux et applicables à tous les domaines techniques (par exemple génie mécanique, électrique, civil ou des procédés). Ils peuvent être utilisés pour des systèmes basés sur des technologies différentes, ou pour des systèmes combinant plusieurs technologies. Le présent document est également une publication horizontale destinée à être utilisée par les comités techniques pour l’établissement de publications liées aux désignations de référence conformément aux principes exposés dans l’IEC Guide 108. L'IEC 81346-1:2022 annule et remplace la première édition, publiée en 2009. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente: a) ajout d’une référence au Guide IEC 108 dans le domaine d’application, en tant que publication horizontale; b) alignement sur l’IEC 81346-2:2019 et l’ISO 81346-12:2018; c) introduction de l’aspect de type; d) introduction d’un modèle d’information du système de désignation de référence; e) introduction d’un modèle d’information dans le cadre du système de désignation de référence conformément à la série de Normes internationales 81346; f) introduction d’une recommandation relative aux métadonnées pour la gestion de la structure de conception; g) introduction de règles et d’une méthode pour la désignation des relations entre les objets; h) introduction d’exigences relatives au développement de parties de la série de Normes internationales 81346 spécifiques à certains secteurs; i) introduction d’exigences concernant l’incorporation de sous-objets dans les structures à objets; j) introduction de recommandations sur la documentation de l’application de la série de Normes internationales 81346; k) ajout de définitions de nouveaux termes utilisés; l) ajout de nouvelles règles et modification des règles existantes; m) conversion des notes relatives aux règles en texte normatif en tant que "Commentaire à la règle nn".

Industrijski sistemi, inštalacije in oprema ter industrijski izdelki - Načela strukturiranja in referenčne oznake - 1. del: Osnovna pravila (IEC 81346-1:2022)

General Information

• Status: Published
• Publication Date: 12-May-2022
• ICS: 01.110 - Technical product documentation
• ICS: 29.020 - Electrical engineering in general
• Technical Committee: CLC/SR 3 - Information structures, documentation and graphical symbols
• Drafting Committee: IEC/TC 3 - IEC_TC_3
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 13-May-2022
• Due Date: 29-Oct-2021
• Completion Date: 13-May-2022
• Ref Project: 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)

Relations

• Replaces: EN 81346-1:2009 - Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations - Part 1: Basic rules
• Effective Date: 07-Jan-2020

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2022
Nadomešča:
SIST EN 81346-1:2009
Industrijski sistemi, inštalacije in oprema ter industrijski izdelki - Načela
strukturiranja in referenčne oznake - 1. del: Osnovna pravila (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)
Industrielle Systeme, Anlagen und Ausrüstungen und Industrieprodukte -
Strukturierungsprinzipien und Referenzkennzeichnung - Teil 1: Allgemeine Regeln (IEC
81346-1:2022)
Systèmes industriels, installations et appareils, et produits industriels - Principes de
structuration et désignations de référence - Partie 1: Règles de base (IEC 81346-
1:2022)
Ta slovenski standard je istoveten z: EN IEC 81346-1:2022
ICS:
01.110 Tehnična dokumentacija za Technical product
izdelke documentation
29.020 Elektrotehnika na splošno Electrical engineering in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 81346-1

NORME EUROPÉENNE
EUROPÄISCHE NORM May 2022
ICS 01.110; 29.020 Supersedes EN 81346-1:2009
English Version
Industrial systems, installations and equipment and industrial
products - Structuring principles and reference designations -
Part 1: Basic rules
(IEC 81346-1:2022)
Systèmes industriels, installations et appareils, et produits Industrielle Systeme, Anlagen und Ausrüstungen und
industriels - Principes de structuration et désignations de Industrieprodukte - Strukturierungsprinzipien und
référence - Partie 1: Règles de base Referenzkennzeichnung - Teil 1: Allgemeine Regeln
(IEC 81346-1:2022) (IEC 81346-1:2022)
This European Standard was approved by CENELEC on 2022-05-04. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 81346-1:2022 E

European foreword
The text of document 3/1541/FDIS, future edition 2 of IEC 81346-1, prepared by IEC/TC 3
"Documentation, graphical symbols and representations of technical information" was submitted to the
IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 81346-1:2022.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2023-02-04
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-05-04
document have to be withdrawn
This document supersedes EN 81346-1:2009 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 81346-1:2022 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 60297-3-100 NOTE Harmonized as EN 60297-3-100
IEC 60297-3-101:2004 NOTE Harmonized as EN 60297-3-101:2004 (not modified)
IEC 61175-1:2015 NOTE Harmonized as EN 61175-1:2015 (not modified)
IEC 61355-1:2008 NOTE Harmonized as EN 61355-1:2008 (not modified)
IEC 61666:2010 NOTE Harmonized as EN 61666:2010 (not modified)
IEC 61666:2010/A1:2021 NOTE Harmonized as EN 61666:2010/A1:2021 (not modified)
IEC 62023 NOTE Harmonized as EN 62023
IEC 62027 NOTE Harmonized as EN 62027
IEC 62424:2016 NOTE Harmonized as EN 62424:2016 (not modified)
IEC 62491:2008 NOTE Harmonized as EN 62491:2008 (not modified)
IEC 81714-3 NOTE Harmonized as EN 81714-3
IEC 82045-1 NOTE Harmonized as EN 82045-1
IEC 82045-2:2004 NOTE Harmonized as EN 82045-2:2005 (not modified)
IEC/IEEE 82079-1:2019 NOTE Harmonized as EN IEC/IEEE 82079-1:2020 (not modified)
ISO 3166-1 NOTE Harmonized as EN ISO 3166-1
ISO 4157 (series) NOTE Harmonized as EN ISO 4157 (series)
ISO 4157-3 NOTE Harmonized as EN ISO 4157-3
ISO 9000:2015 NOTE Harmonized as EN ISO 9000:2015 (not modified)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 81346-2 2019 Industrial systems, installations and EN IEC 81346-2 2019
equipment and industrial products -
Structuring principles and reference
designations - Part 2: Classification of
objects and codes for classes
ISO/IEC 646 - Information technology; ISO 7-bit coded - -
character set for information interchange
ISO 81346-10 — Industrial systems, installations and - -
equipment and industrial products -
Structuring principles and reference
designation - Part 10: Power plants
ISO 81346-12 2018 Industrial systems, installations and - -
equipment and industrial products -
Structuring principles and reference
designations - Part 12: Construction works
and building services
In preparation. Stage at time of publication: ISO DIS 81346-10:2021.
IEC 81346-1
Edition 2.0 2022-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
HORIZONTAL PUBLICATION
PUBLICATION HORIZONTALE
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
INTERNATIONALE
ICS 01.110; 29.020 ISBN 978-2-8322-1077-7

– 2 – IEC 81346-1:2022 © IEC 2022
CONTENTS
FOREWORD . 8
INTRODUCTION . 11
1 Scope . 13
2 Normative references . 13
3 Terms and definitions . 14
4 Concepts . 16
4.1 Object . 16
4.2 Aspect . 17
4.3 Systems . 19
4.4 Structuring . 19
4.5 Function . 19
4.6 Products and components . 20
4.7 Location . 21
4.8 Types. 21
4.9 Object occurrences and product individuals . 21
4.10 Relations between concepts . 22
5 Structuring principles . 23
5.1 General . 23
5.2 Forming structures . 26
5.3 Function-oriented structure . 28
5.4 Product-oriented structure. 29
5.5 Location-oriented structure . 30
5.6 Type-oriented structure . 31
5.7 Structures based on "other aspects" . 31
5.8 Structures based on more than one aspect . 33
6 Construction of reference designations . 34
6.1 General . 34
6.2 Format of reference designations . 35
6.2.1 Single level . 35
6.2.2 Multi-level . 36
6.2.3 Use of letter codes . 36
6.3 Different structures within the same aspect . 37
7 Reference designation set . 37
8 Designation of locations . 39
8.1 General . 39
8.2 Assemblies . 39
9 Presentation of reference designations . 41
9.1 Reference designations . 41
9.2 Reference designation set . 42
9.3 Presentation of identifiers for the top-node . 43
10 Labelling . 44
11 Presentation of properties for an object . 45
12 Application of the reference designation system . 46
Annex A (informative) Information model on the reference designation system . 47
A.1 General . 47

IEC 81346-1:2022 © IEC 2022 – 3 –
A.2 EXPRESS-G model . 47
A.3 Entity descriptions . 48
A.3.1 object .
...