Industrial systems, installations and equipment and industrial products - Structuring principles and reference designation - Part 10: Power supply plants

ISO 81346-10:2022 This document provides rules for structuring of systems in the domain of power supply systems, being supplementary to the general principles for the structuring of systems including structuring of information about systems specified in IEC 81346-1.
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 finding information about that object among different kinds of documents.
The principles are general and are applicable to all technical areas (e.g. 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 also defines classes for systems and spaces in the field of power supply systems.

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Status
Published
Publication Date
31-Jul-2022
Current Stage
PPUB - Publication issued
Completion Date
12-Aug-2022
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INTERNATIONAL ISO
STANDARD 81346-10
First edition
2022-08
Industrial systems, installations and
equipment and industrial products —
Structuring principles and reference
designations —
Part 10:
Power supply systems
Systèmes industriels, installations et appareils, et produits
industriels — Principes de structuration et désignations de
référence —
Partie 10: Centrales électriques
Reference number
ISO 81346-10:2022(E)
© ISO 2022
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ISO 81346-10:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

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ISO 81346-10:2022(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

Introduction .............................................................................................................................................................................................................................. vi

1 S c op e ................................................................................................................................................................................................................................. 1

2 N or m at i ve r ef er enc e s ..................................................................................................................................................................................... 1

3 Terms and definitions .................................................................................................................................................................................... 1

4 C onc ep t s ........................................................................................................................................................................................................................ 3

4.1 General ........................................................................................................................................................................................................... 3

4 . 2 Obje c t .............................................................................................................................................................................................................. 3

4 . 3 A sp e c t ............................................................................................................................................................................................................. 3

4.4 Systems ......................................................................................................................................................................................................... 3

4.4.1 General ........................................................................................................................................................................................ 3

4.4.2 Power supply systems ................................................................................................................................................... 3

4.4.3 Technical systems ............................................................................................................................................................. 4

4.4.4 C omponent systems ........................................................................................................................................... .............. 4

4 . 5 S t r uc t u r i n g ................................................................................................................................................................................................. 4

4 . 6 F u nc t ion ........................................................................................................................................................................................................ 4

4.7 Products and components ............................................................................................................................................................ 4

4 . 8 L o c at ion ........................................................................................................................................................................................................ 4

4.8.1 General ........................................................................................................................................................................................ 4

4.8.2 Construction complexes .............................................................................................................................................. 4

4 . 8 . 3 C on s t r uc t ion ent it ie s ...................................................................................................................................................... 5

4 . 8 .4 C on s t r uc t ion s p ac e s ........................................................................................................................................................ 5

4.9 T ypes ............................................................................................................................................................................................................... 5

4.10 O bject occurrences and product individuals ............................................................................................................... 5

4.11 R elations between concepts ....................................................................................................................................................... 5

4.12 Ma n a gement a s p e c t ........................................................................................................................................................................... 5

5 S t r uc t u r i n g pr i nc iple s.................................................................................................................................................................................... 5

5.1 G eneral ........................................................................................................................................................................................................... 5

5 . 2 F or m i n g s t r uc t u r e s ............................................................................................................................................................................ 5

5 . 3 F u nc t ion- or ient e d s t r uc t u r e ...................................................................................................................................................... 6

5 .4 P r o duc t- or ient e d s t r uc t u r e......................................................................................................................................................... 6

5 . 5 L o c at ion- or ient e d s t r uc t u r e ...................................................................................................................................................... 6

5.6 T ype-oriented structure ................................................................................................................................................................ 6

5.7 S tructures based on “other aspects” .................................................................................................................................. 7

5.8 S tructures based on more than one aspect .................................................................................................................. 7

6 Construction of reference designations ...................................................................................................................................... 7

6.1 General ........................................................................................................................................................................................................... 7

6.2 F ormat of reference designations .......................................................................................................................................... 7

6 . 2 .1 Si n g le le vel ............................................................................................................................................................................... 7

6. 2. 2 M ul t i-le vel ................................................................................................................................................................................. 7

6.2.3 U se of letter codes ............................................................................................................................................................. 7

6.3 D ifferent structures within the same aspect ........................................................................................................... 10

7 Re ference designation set .......................................................................................................................................................................10

8 Designation of locations ............................................................................................................................................................................11

9 P resentation of reference designations ...................................................................................................................................11

10 L ab el l i n g ....................................................................................................................................................................................................................11

11 Designation of properties .......................................................................................................................................................................11

12 Application of the reference designation system ..........................................................................................................12

13 A pplication of annexes in IEC 81346-1 ......................................................................................................................................14

iii
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ISO 81346-10:2022(E)

Annex A (informative) Application of annexes in IEC 81346-1 .............................................................................................15

Annex B (normative) Classification letter codes for systems ................................................................................................16

Annex C (normative) Classification letter codes for constructions .................................................................................22

Annex D (informative) Examples of application ...................................................................................................................................35

Annex E (informative) Mapping of letter codes between ISO/TS 81346-10:2015 and this

document ..................................................................................................................................................................................................................39

Bibliography ............................................................................................................................................................................................................................ 44

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ISO 81346-10:2022(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www.iso.org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/

iso/foreword.html.

This document was prepared by Technical Committee ISO/TC 10, Technical product documentation,

Subcommittee SC 10, Process plant documentation, in cooperation with the Technical Committee

IEC/TC 3, Information structures and elements, identification and marking principles, documentation and

graphical symbols.

This document cancels and replaces ISO/TS 81346-10:2015, which has been technically revised.

The main changes are as follows:
— converted to an International Standard;
— structure adapted to that of IEC 81346-1;

— only requirements constituting a modification or addition to those of IEC 81346-1 have been

included;

— reference is made to ISO 81346-12, with which this document is intended to be used, if needed;

— the abbreviation RDS-PS is introduced for reference designation system for power supply systems,

providing an identifier to reference designation systems according to this document.

Documents in the 80000 to 89999 range of reference numbers are developed by collaboration between

ISO and IEC.
A list of all parts in the ISO 81346 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www.iso.org/members.html.
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ISO 81346-10:2022(E)
Introduction

This document considers and supports planning, erection, utilization and operation of power supply

systems. The application of a reference designation system for power supply systems (RDS-PS) can

lead to restructuring and reorientation of these activities and thereby offers chances and potential of

increasing efficiency and economization.

This document has shifted from the focus of the previous technical specification (ISO/TS 81346-10:2015),

where fixed syntax and focus on coding mechanism were dominant, towards full flexibility in dividing

systems into system elements in a non-fixed manner (i.e. no fixed syntax), using one or more aspects

at the same time to designate objects of interest. Locations can also be designated accordingly

in order to reference the location of objects. Annex E provides a mapping of letter codes between

ISO/TS 81346-10:2015 and this document.

Furthermore, this document is aligned with ISO 81346-12 for construction works (referred to as RDS-

CW), in order to support harmonization of methods and principles for forming reference designations

across the industry-specific applications of the ISO 81346 series.

The following advantages of designation systems in accordance with this document and the

IEC/ISO 81346 series in general will become increasingly important in the future. The following should

be noted:

— The reference designation system can be applied in several technical fields in the same way and is

not designed for one field only. Therefore, process, mechanical, electrical and structural design, for

example, can be treated in the same way, which is a basis for company-wide synergy effects.

— The reference designation system allows for integrating any kind of systems and components

without changing the once-defined designations.

— The reference designation is not bound to a fixed structural pattern. Thus, the designation system

is vertically and horizontally expansible, which can make the interpretability in some cases quite

complex. Therefore, an exact documentation and description of the designation system is important

when it is applied.

— The application of different aspects allows for the designation of system elements by function,

realizing products or location independently of each other.

— The different aspects used for structuring and the possibility of creating relations between objects

represented in these structures offer search and filter criteria and information correlations in a

much greater variety than before.

The users of this document will be able to manage objects and related properties in a more efficient and

consistent way. When implemented, information across various data processing systems can be handled

in an unambiguous way. Other information structures besides those described in this document are:

— organization structures;
— utilization structures;
— cost structures;
— performance structures;
— real estate structures.

This document is applicable for all types of assets used for energy conversion and provision to

transmission, distribution or local energy networks, for example:
— large central conventional or renewable power generation systems
— thermal power plants;
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ISO 81346-10:2022(E)
— hydropower plants;
— nuclear power plants;
— onshore and offshore wind farms;
— photovoltaic and solar power plants;
— geothermal plants;
— distributed and/or renewable energy resources
— wind turbine generators;
— diesel and gas generators;
— photovoltaic, solar thermal and combined heat and power (CHP) units;
— generation from combustible renewables;
— storage or a combination of storage technologies
— thermal storage;
— electrochemical storage;
— electrical storage;
— mechanical storage;
— power to X technologies
— power to gas;
— power to liquid;
— power to heat;

— transmission and distribution systems, including technical equipment provided by such systems.

New technologies with the purpose of reducing CO emissions, such as coal gasification, air separation

and amine scrubbing, are also covered by this document. It applies, furthermore, to digital process

control systems, operational management systems (e.g. asset management systems and virtual power

plants used for demand response or aggregation) and the designation of related application software.

Due to the natural diversification of international energy infrastructures, this document will enable

and support the establishment of regional or branch-specific application profiles in order to provide the

required level of interoperability of designations among different stakeholder groups.

vii
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INTERNATIONAL STANDARD ISO 81346-10:2022(E)
Industrial systems, installations and equipment and
industrial products — Structuring principles and reference
designations —
Part 10:
Power supply systems
1 S cope

This document provides rules for structuring of systems in the domain of power supply systems,

being supplementary to the general principles for the structuring of systems including structuring of

information about systems specified in IEC 81346-1.

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 finding information about that object

among different kinds of documents.

The principles are general and are applicable to all technical areas (e.g. 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 also defines classes for systems and spaces in the field of power supply systems.

2 Normat ive references

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.

IEC 81346-1:2022, Industrial systems, installations and equipment and industrial products — Structuring

principles and reference designations — Part 1: Basic rules

IEC 81346-2:2019, Industrial systems, installations and equipment and industrial products — Structuring

principles and reference designations — Part 2: Classification of objects and codes for classes

3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 81346-1 and IEC 81346-2 and

the following apply.

ISO and IEC maintain terminology databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
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ISO 81346-10:2022(E)
3.1
building

construction entity (3.3) that has the provision of shelter for its occupants or contents as one of its main

purposes, usually partially or totally enclosed and designed to stand permanently in one place

[SOURCE: ISO 6707-1:2020, 3.1.1.3, modified —works replaced by entity and Note 1 to entry deleted.]

3.2
construction complex

aggregate of one or more construction entities (3.3) intended to serve at least one function or user

activity
[SOURCE: ISO 12006-2:2015, 3.4.1, modified — Note 1 to entry deleted]
3.3
construction entity

independent unit of the built environment with a characteristic form and spatial structure, intended to

serve at least one function or user activity
[SOURCE: ISO 12006-2:2015, 3.4.2, modified — Note 1 to entry deleted]
3.4
component system
system of one or more components providing a fundamental self-contained function
3.5
control
purposeful action on or in a process to meet specified objectives

Note 1 to entry: Actions include measuring, counting, monitoring, indicating, alerting, recording, logging,

manipulating, evaluating, optimizing, intervening and configuring.

[SOURCE: IEC 60050-351:2013, 351-42-19, modified — Note 1 to entry replaced, Note 2 to entry and

Figure 29 deleted.]
3.6
equipment

aggregation of functional elements or assembly of components and modules that belong together in one

physical unit of a plant (3.10) or in a functional unit of a system
[SOURCE: ISO 16484-2:2004, 3.73, modified — Notes 1 and 2 to entry deleted.]
3.7
host installation aspect

location aspect relating objects to locations inside or on a product or product assembly

Note 1 to entry: Product or product assembly is not to be confused with reference designations based on the

product aspect.
3.8
inherent function
function of an object, independent of any application of the object
3.9
power supply system

system representing a process for conversion, transmission and/or distribution of energy

3.10
plant
assembly of different systems on a specific site
[SOURCE: IEC 61355-1:2008, 3.10]
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ISO 81346-10:2022(E)
3.11
site of installation aspect
location aspect relating objects to locations inside a space (3.12)
3.12
space
limited three-dimensional extent defined physically or notionally
[SOURCE: ISO 12006-2:2015, 3.1.8]
3.13
technical system

object with characteristics which predominantly represents a coherent technical solution with an

inherent function (3.8)
[SOURCE: ISO 81346-12:2018, 3.21]
3.14
works
system of industrial complexes and the associated infrastructure in one location
4 C oncepts
4.1 General
The requirements of IEC 81346-1:2022, Clause 4, apply.
4.2 Object
The requirements of IEC 81346-1:2022, 4.1, apply.
4.3 Aspect
The requirements of IEC 81346-1:2022, 4.2, apply.
4.4 Systems
4.4.1 General
The requirements of IEC 81346-1:2022, 4.3, apply with the following additions:

In the context of this document, all objects are seen as systems and/or system elements.

The system concept allows a designer to handle wholes (as distinct from parts). By identifying related

systems, the relationships among these can be determined and monitored, for example to ensure that

all systems operate correctly.

Systems and system elements bring together a set of objects for a task that none of the objects can

accomplish on their own.
4.4.2 Power supply systems

Power supply systems are those systems used to convert, transmit, distribute or store energy and to

manage such systems.

Power supply systems shall be classified in accordance with the scheme defined in Annex B, Table B.1.

A power supply system may incorporate another power supply system recursively as one of its elements.

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ISO 81346-10:2022(E)
4.4.3 Technical systems

Technical systems are those systems that are not by themselves considered to be power supply systems

but represent technical solutions useful for the realization of a power supply system.

Technical systems shall be classified in accordance with the scheme defined in Annex B, Table B.2.

A technical system may incorporate another technical system recursively as one of its elements.

4.4.4 Component systems

Component systems are systems that are well defined with respect to both their inherent function and

implementation. Component systems are used as part of technical systems and may also be referred to

power supply systems.

Component systems shall be classified in accordance with IEC 81346-2:2019, Table 3.

A component system may incorporate another component system recursively as one of its elements.

4.5 Structuring
The requirements of IEC 81346-1:2022, 4.4, apply.
4.6 Function
The requirements of IEC 81346-1:2022, 4.5, apply.
4.7 Pr oducts and components
The requirements of IEC 81346-1:2022, 4.6, apply.
4.8 Location
4.8.1 General
The requirements of IEC 81346-1:2022, 4.7, apply.
Two different location aspects shall be applied:

— Host installation aspect: this location aspect shall be applied to relate the location of an object to

locations inside or on a product or product assembly.
EXAMPLES Locations within or on a cubicle, a console or a panel.

— Site of installation aspect: this location aspect shall be applied to relate the location of an object to a

location defined inside a larger location, irrespective of the existence of physical objects making up

that larger location.

EXAMPLES A site, a construction complex, a construction entity (a building), a part of a building, a storey, a

room, an outside area, a green area, a park area.
4.8.2 Construction complexes

Construction complexes are spaces which are an aggregation of construction entities in the context

of this document. Construction complexes are used to represent spaces, i.e. locations, within the site

installation aspect.
Classes of construction complexes are shown in Annex C, Table C.1.
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ISO 81346-10:2022(E)

A construction complex may recursively incorporate another construction complex as one of its

elements.
4.8.3 Construction entities

A construction entity is an independent unit of a built environment forming a construction complex. In

the context of this document, construction entities are used to represent spaces, i.e. locations, within

the site installation aspect.
Classes of construction entities are shown in Annex C, Table C.2.

A construction entity may recursively incorporate another construction entity as one of its elements.

4.8.4 Construction spaces

Construction spaces are spaces, i.e. locations, within the site installation aspect that are well defined

with respect to their intended use. C
...

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