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

IEC 81346-1:2009, 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. This edition includes the following substantial changes with respect to the previous one:
- 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- the specific term "transition" has been avoided and been replaced by an improved textual description of this phenomenon in annex D;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.
IEC 81346-1:2009 has the status of a horizontal standard in accordance with IEC Guide 108.

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

L'IEC 81346-1:2009 publié conjointement par l'IEC 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.
L'IEC 81346-1:2009 a le statut de norme horizontale conformément au Guide IEC 108.

General Information

Status
Published
Publication Date
29-Jul-2009
Current Stage
DELPUB - Deleted Publication
Start Date
31-Oct-2019
Completion Date
30-Mar-2022
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IEC 81346-1
Edition 1.0 2009-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
HORIZONTAL STANDARD
NORME 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
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IEC 81346-1
Edition 1.0 2009-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
HORIZONTAL STANDARD
NORME 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 978-2-8891-0785-8

– 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

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.
...

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