IEC 81346-1:2022 establishes general principles for the structuring of systems including structuring of 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 finding 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.
IEC 81346-1:2022 cancels and replaces the first edition published in 2009. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the scope includes a reference to IEC Guide 108 for being a horizontal publication;
b) synchronization with IEC 81346-2:2019 and ISO 81346-12:2018;
c) the introduction of the type aspect;
d) introduction of an information model of the reference designation system;
e) introduction of an information model for the framework of reference designation system to comply with International Standard 81346 series;
f) introduction of recommendation for metadata for design structure management;
g) introduction of rules and method for designation of relations between objects;
h) introduction of requirements for development of sector-specific parts of the International Standard 81346 series;
i) introduction of requirements for incorporation of sub-object in object structures;
j) introduction of recommendations for documentation of the application of the International Standard 81346 series;
k) introduced definition of new terms used;
l) new rules added and existing rules modified;
m) notes related to rules are converted to normative text as "Comment to Rule nn".

  • Standard
    239 pages
    English and French language
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IEC 60445:2021 is available as IEC 60445:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60445:2021 applies to the identification and marking of terminals of electrical equipment such as resistors, fuses, relays, contactors, transformers, rotating machines and, wherever applicable, to combinations of such equipment (e.g. assemblies), and also applies to the identification of terminations of certain designated conductors. It also provides general rules for the use of certain colours or alphanumeric notations to identify conductors with the aim of avoiding ambiguity and ensuring safe operation. These conductor colours or alphanumeric notations are intended to be applied in cables or cores, busbars, electrical equipment and installations. This basic safety publication is primarily intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 104 and ISO/IEC Guide 51. It has the status of a basic safety publication in accordance with IEC Guide 104.
IEC 60445:2021 cancels and replaces the sixth edition published in 2017. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the definitions have been aligned with IEC 60050-195:2021 and IEC 60050-826;
b) the provisions for colour to be used for identification of certain designated conductors are made requirements and not only recommendations;
c) introduction of a new subclause on marking of protective terminals for multiple power supply inputs on equipment.

  • Standard
    53 pages
    English and French language
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IEC 60152:2021 specifies methods and rules for the designation of phase difference between two items in a three-phase AC system. The designations are intended to be applied in the technical documentation of industrial installations, equipment, and products, and also on markings of equipment and products.
IEC 60152:2021 cancels and replaces the first edition published in 1963. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the title has been updated to reflect the content of the document;
b) the concept of identifying conductors with hour number has been removed as the concept is considered out of date and other means for identifying conductors exists;
c) definition of hour number (clock number) and phase difference introduced.

  • Standard
    13 pages
    English and French language
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IEC 60757:2021 specifies letter codes for designation of colours and provides rules for their combination to designate colour combinations. The letter codes are intended to be applied in the technical documentation of electrical installations, electrical equipment and products, and in markings of electrical equipment and products.
This basic safety publication focusing on safety essential requirements is primarily intended for use by technical committees in the preparation of safety publications in accordance with the principles laid down in IEC Guide 104 and ISO/IEC Guide 51.
It is not intended for use by manufacturers or certification bodies. One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications. The requirements of this basic safety publication will not apply unless specifically referred to or included in the relevant publications.
This document does not specify any requirements for the encoding of colour properties, nor for their visual representation. Such requirements are under the responsibility of the different technical committees.
IEC 60757:2021 cancels and replaces the first edition published in 1983. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) codes restricted to letter codes;
b) removed old unnecessary notes;
c) added a new subclause on alternating colours of the same item;
d) added Annex A with examples of colours and their corresponding RGB (red, green, blue) encoding.

  • Standard
    14 pages
    English and French language
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IEC 62656-8:2020 specifies a web service interface to exchange data parcel(s) conformant to IEC 62656-1, between a parcel server and a parcel client or between parcel servers. This interface comprises three basic services: a registration service, resolution service and subscription service.
This document includes the following:
– holistic use scenario;
– detailed specification of the three basic services;
– JSON and XML notation schemas for data parcel(s).
The following items are outside the scope of this document:
– user identification and authorization;
– query language for a data parcel;
– transportation protocol;
– data and communication security techniques.

  • Standard
    153 pages
    English and French language
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IEC 61293:2019 establishes minimum requirements and general rules on marking electric equipment with ratings and other characteristics to enable the proper and safe selection and installation of electric equipment related to any supply of electricity.
The object of this document is to:
• provide general requirements for the marking of the characteristics related to any supply system, such as voltage, current, frequency and power, without any restrictions;
• provide technical committees with uniform methods for the marking of electrical ratings of products.
This document is primarily intended for application by technical committees when specifying minimum markings of ratings related to any electrical supply of equipment, sub-assemblies and components, but it is also for application by product manufacturers for marking their products.
This horizontal standard is primarily intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 108.
One of the responsibilities of a technical committee is, wherever applicable, to make use of horizontal standards in the preparation of its publications. The contents of this horizontal standard will not apply unless specifically referred to or included in the relevant publications.
IEC 61293:2019 cancels and replaces the first edition published in 1994. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) its status as a basic safety publication has been removed;
b) the scope is extended to include the applicability of this document to product manufacturers;
c) the addition of a provision that the visibility of the marking during normal operation should be considered;
d) more detailed requirements where equipment has a set or range of rated values for a given characteristic;
e) requirements regarding the provision of the markings also in the technical documentation have been added;
f) some notes have been converted to normative text;
g) normative references and references to other standards have been updated.
It has the status of a horizontal standard in accordance with IEC Guide 108.

  • Standard
    32 pages
    English and French language
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IEC 81346-2:2019 establishes classification schemes with defined object classes and their associated letter codes, and is primarily intended for use in reference designations and for designation of generic types.
The classification schemes are applicable for objects in all technical disciplines and all branches of industry.
IEC 81346-2:2019 has the status of a horizontal standard in accordance with IEC Guide 108. It is also 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.
IEC 81346-2:2019 cancels and replaces the first edition published in 2009. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) The entry classes of the classification scheme have been defined to reflect the “inherent function” of the object classified;
b) The classes are defined to align with the principles of ISO 22274 and ISO 704;
c) A three-level classification scheme has been defined, which provides a greater flexibility for the designer in some technical fields;
d) Classes are defined by their definition and provided with a preferred term. Examples are provided if needed;
e) A separate classification scheme for spaces has been provided.

  • Standard
    197 pages
    English and French language
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IEC/IEEE 82079-1:2019 is jointly developed and published by IEC, IEEE, and ISO and provides general principles and detailed requirements for the design and formulation of all types of instructions for use that will be necessary or helpful for users of products of all kinds, ranging from a tin of paint to large or highly complex products, such as large industrial machinery, turnkey based plants or buildings.
IEC/IEEE 82079-1:2019 cancels and replaces the first edition IEC 82079-1:2012. This edition constitutes a technical revision. It includes the following significant technical changes with respect to the previous edition:
a) The structure of this document has been rearranged in order to facilitate application of the standard and to make it easier to find information. Where possible, the language has been simplified.
b) Information for use is introduced as a generic term. Instructions for use is a synonym for information for use. Step-by-step instructions is used as a subset of information for use.
c) Clause 5 (principles) is revised and focuses on the purpose of information for use, the quality of information and the process for management of information.
d) The process for preparation of information for use is integrated in the normative part and addressed comprehensively.
e) Empirical methods for the evaluation of information for use are described in the normative part.
f) The professional competencies needed for the preparation of information for use are addressed more comprehensively.
g) Some aspects have been added to general requirements for information for use for complex systems of systems.
h) Consideration is given to instructions for self-assembly products.
i) An informative annex providing guidance on the fulfilment of specified requirements is introduced.
IEC/IEEE 82079-1:2019 has the status of a horizontal standard in accordance with IEC Guide 108. It is primarily intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 108.
One of the responsibilities of a technical committee is, wherever applicable, to make use of horizontal standards in the preparation of its publications. The contents of this horizontal standard will not apply unless specifically referred to or included in the relevant publications.

  • Standard
    130 pages
    English and French language
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ISO 81346-12:2018 This document establishes rules for structuring of systems and the formulation of reference designations and provides classes for systems in the field of construction works and building services. This document also specifies a classification of objects and corresponding letter codes for use in reference designations of object occurences.
This document is not intended for manufacturers or system-related designations of individuals (e.g. inventory number or serial number) or for product types (e.g. article number or parts number).

  • Standard
    49 pages
    English language
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IEC TS 63064:2018(E) This document gives guidance and basic principles on how to design graphical symbols for diagrams for standardization and inclusion in IEC 60617.
This document does not specify how to apply such graphical symbols in the diagrams.

  • Technical specification
    15 pages
    English language
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IEC 60445:2017 is now available as IEC 60445:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60445:2017 applies to the identification and marking of terminals of electrical equipment such as resistors, fuses, relays, contactors, transformers, rotating machines and, wherever applicable, to combinations of such equipment (e.g. assemblies), and also applies to the identification of terminations of certain designated conductors. It also provides general rules for the use of certain colours or alphanumeric notations to identify conductors with the aim of avoiding ambiguity and ensuring safe operation. These conductor colours or alphanumeric notations are intended to be applied in cables or cores, busbars, electrical equipment and installations. This basic safety publication is primarily intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 104 and ISO/IEC Guide 51.
It has the status of a basic safety publication in accordance with IEC Guide 104. This sixth edition cancels and replaces the fifth edition of IEC 60445, published in 2010. This edition includes the following significant technical changes with respect to the previous edition:
a) the text of the introduction has been moved into the scope in accordance with IEC Guide 104;
b) colour codes for the identification of line conductors of DC systems;
c) colour code for the identification of functional earthing conductor;
d) update of Table A.1with colour codes for DC line conductors;
e) conversion of notes containing non-mandatory requirements to normative text;
f) the terminology is aligned with IEC 60050-195.
The contents of the corrigendum of November 2017 have been included in this copy.

  • Standard
    52 pages
    English and French language
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IEC 61360-1:2017 specifies principles for the definition of the properties and associated attributes and explains the methods for representing verbally defined concepts with appropriate data constructs available from IEC 61360-2. It also specifies principles for establishing a hierarchy of classification from a collection of classes, each of which represents a technical concept in the electrotechnical domain or a domain related to electrotechnology. This fourth edition cancels and replaces the third edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- support of advanced constructs such as
· conditions and constraints,
· blocks,
· cardinality,
· polymorphism,
· generic and restricted enumerations, and
· mapping;
- extended list of data types;
- harmonization with IEC 62656-1;
- support of IEC TS 62720 and of coded units;
- harmonization of semantic and administrative data among the various information objects;
- use of UML for data modelling;
- enhanced definitions and descriptions;
- introduction of examples of higher level constructs such as block, cardinality, or polymorphism as guidance for the user of the IEC 61360 series.
IEC 61360-4, IEC reference collection of standard data element types and component classes, can be accessed from IEC CDD (Common Data Dictionary) Free access to Database. The database contains the IEC reference collection of classes and associated characteristic properties (data element types or DETs) of electric/electronic components including materials, geometry and features used in electrotechnical equipment and systems. The dictionary and database follow the methodology of Part 1 of IEC 61360 and the information model of Part 2.
IEC 61360-1:2017 has the status of a horizontal standard in accordance with IEC Guide 108.

  • Standard
    354 pages
    English and French language
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IEC 62569-1:2017 specifies several qualifiers to be used with object or (dictionary) properties and their values indicating life cycle and other aspects of the property. It is a prerequisite for the usage of the other parts of IEC 62569. This first edition cancels and replaces IEC PAS 62569-1:2009. This edition constitutes a technical revision.

  • Standard
    77 pages
    English and French language
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IEC 62656-5:2017 specifies a method for representing activities and relations among the activities by a tabular ontology representation, called “parcellized activity model” or PAM for short, which is a specialized use of a generic tabular ontology data model, known as the parcellized ontology model (POM) defined in Part 1 of the IEC 62656 series. The activities that can be described by this document include part or whole of an enterprise, an organization or a collection of services, a set of events or processes which interact with each other by exchanging physical or non-physical entities. This part of IEC 62656 also defines a method for uniquely identifying activities, or their homologues happenings in a certain sequence. In addition, this document identifies flows of information, objects or materials exchanged among activities, where each of the activities is represented by a class and each flow by a relation.

  • Standard
    143 pages
    English and French language
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IEC TS 62720:2017(E) specifies identifiers for units to support computer-based processing of product data. It provides a survey of quantities with associated collections of internationally standardized as well as non–standardized units used in business and science.
It covers any standard or non-standard units of measure currently in use, in two or more distinct ethno-linguistic groups or nations, at least in one domain of industry, for which an explicit method of conversion to a known standard unit of measure or its equivalent is well documented or evident from external references.

  • Technical specification
    87 pages
    English language
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IEC 61360-6:2016 provides guidance for the definition of concepts that are used to describe classes and properties submitted for update of the content of IEC Common Data Dictionary (IEC CDD). This includes:
- a basic understanding of key concepts and procedures used within IEC CDD;
- a binding reference for quality control of IEC 61360 compliant dictionary content;
- guidance on documents where necessary in-depth knowledge can be acquired.
IEC 61360-4, IEC reference collection of standard data element types and component classes, can be accessed from IEC CDD (Common Data Dictionary) Free access to Database. The database contains the IEC reference collection of classes and associated characteristic properties (data element types or DETs) of electric/electronic components including materials, geometry and features used in electrotechnical equipment and systems. The dictionary and database follow the methodology of Part 1 of IEC 61360 and the information model of Part 2.

  • Standard
    82 pages
    English and French language
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IEC TS 62666:2016(E) provides guidelines to ensure consistency with respect to the specification of requirements for information, documentation and graphical symbols in IEC publications provided by system or product committees. This second edition cancels and replaces the first edition published in 2010. This edition constitutes a technical revision.This edition includes the following significant technical changes with respect to the previous edition:
- the references to relevant standards have been updated and horizontal standards have been designated;
- a new subclause "Identification of equipment, basic and safety principles" has been added. The reason for this is that a group of standards have been placed under the responsibility of TC 3.

  • Technical specification
    26 pages
    English language
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IEC TR 62687:2015(E) contains a collection of terms (glossary) used in IEC, ISO and ITU publications in the field of graphical symbols for use on equipment including some related fields. Some terms are annotated and/or modified for the purpose of clarification. This second edition cancels and replaces the first edition published in 2011. This edition constitutes a technical revision and includes the following significant technical changes with respect to the previous edition:
- The title has changed from "terminology" to "vocabulary";
- Annex A has been added.

  • Technical report
    13 pages
    English language
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IEC 61175-1:2015 provides rules for the composition of designations for the identification of signals and signal connections. This includes the designation of power supply. This part of IEC 61175 is applicable to all types of signals within an industrial system, installation and equipment and industrial products. It deals with the information aspect of signals and not with their physical implementation. This first edition cancels and replaces the second edition of IEC 61175 published in 2005 and constitutes a technical revision. It includes the following changes: an improved description of the principles for use and a strict separation between the physical aspect of a signal and its associated information, focusing on the latter.
It has the status of a horizontal standard in accordance with IEC Guide 108.

  • Standard
    107 pages
    English and French language
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IEC TR 62964:2015(E) provides the result of a study of some of the graphical symbols for use on equipment standardized in IEC 60417 being primarily intended to:
- identify the equipment or a part of the equipment (e.g. a control or display);
- indicate a functional state (e.g. on, off, alarm);
- designate connections (e.g. terminals, filling points for materials);
- provide information on packaging (e.g. identification of contents, instructions for handling);
- provide instruction for the operation of the equipment (e.g. limitations of use);
- in the focus of contemporary use of graphical symbols for use on multimedia equipment, and new possible meanings to be envisaged as well as new graphical symbols not yet standardized in IEC 60417.

  • Technical report
    14 pages
    English language
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IEC 62656-3:2015 defines a formal mapping between the IEC 62656 and meta-model for CIM in order to import the CIM ontology into the IEC CDD, and to ensure the interoperability of ontologies of two standards, or even among a wider spectrum of standards. For the basis of the mapping from CIM to the data model defined in IEC 62656-1, the UML representation of CIM is referenced.

  • Standard
    190 pages
    English and French language
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ISO/TS 81346-10:2015 contains sector-specific stipulations for structuring principles and reference designation rules on technical products and technical product documentation of power plants. It applies in combination with IEC 81346-2, ISO/TS 81346-3, VGB-B 101 and VGB-B 102 for the classification of systems and objects, and for function-, product- and location-specific designation of technical products and their documentation for power plants. It specifies the designation blocks for the clear identification and localization of the technical products, which are used for their labelling in the plant, for their designation in technical documents and for the designation of the technical documents as well. This Technical Specification encompasses the process of energy conversion. The specifications in this document apply for the power plant process, for the primary energy supply and final products distribution, as well as for auxiliary media and auxiliary energy supply, waste materials and waste energy disposal. This Technical Specification is not applicable to recovery of the primary energy and the media for supplying the process, nor to the processing of residues from process disposal (e.g. gypsum, slag products, waste water, etc.).

  • Technical specification
    44 pages
    English language
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IEC 62744:2014 provides generic rules for the representation of states of objects by graphical symbols standardized in IEC 60617, ISO 14617, IEC 60417, for example, and for future graphical symbols included in these standards. It also provides operational states of an object as examples that typically occur and which need to be represented by standardized graphical symbols and defines generic rules to be applied. It specifies which types of presentation facilities are recommended to present the different operational states to humans.
It has the status of a horizontal standard in accordance with IEC Guide 108.

  • Standard
    62 pages
    English and French language
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IEC 61082-1:2014 is available as IEC 61082-1:2014 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61082-1:2014 establishes general rules and guidelines for the presentation of information in documents, and specific rules for diagrams, drawings and tables used in electrotechnology. This third edition cancels and replaces the second edition published in 2006. It constitutes a technical revision and includes the following changes:
- inclusion of presentation rules for wireless interconnections;
- description of exceptional cases for the application of rules for positioning of reference designations in diagrams;
- correction of errors and update of the normative references;
- harmonization of definitions with respect to referenced publications.
It has the status of a horizontal standard in accordance with IEC Guide 108.

  • Standard
    228 pages
    English and French language
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IEC 62656-1:2014 specifies the logical structure for a set of spreadsheets, used as "data parcels", to define, transfer and register product ontologies. The spreadsheet interface structure defined in this part of IEC 62656 contains the following:
- Definition and specification of the logical structure and layout of the spreadsheet interface for definition, transfer, and registering of a reference dictionary;
- Definition and specification of library instance data belonging to a class of a reference dictionary described by a set of spreadsheets conformant to this part of IEC 62656;
- Definition and specification of the meta dictionary that enables the definition and transfer of a reference dictionary as a set of instance data conforming to the meta dictionary;
- Definition and specification of the meta-model as data that enables the definition and transfer of a reference dictionary as a set of instance data conforming to the meta-meta-dictionary;
- Specification of the mapping between the dictionary data expressed in the spreadsheet format and the EXPRESS model specified by IEC 61360-2/ISO 13584-42 (with some elements of ISO 13584-25);
- Description of the basic semantic mapping between the dictionary data expressed in the spreadsheet formats defined in this part of IEC 62656 and that of DIN 4002.

  • Standard
    439 pages
    English and French language
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IEC 62656-2:2013 provides an application guide for the data parcels specified in IEC 62656-1 and used for the definition of a domain data dictionary that may be imported from and exported to the IEC common data dictionary, or IEC CDD for short, maintained as the IEC 61360-4 database. It provides instructions for the interpretation and use of the technical specification defined in IEC 62656-1 within a software application, to avoid misuse of the data constructs available in IEC 62656-1.

  • Technical specification
    121 pages
    English and French language
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IEC 60848:2013 defines the GRAFCET specification language for the functional description of the behaviour of the sequential part of a control system. It specifies the symbols and rules for the graphical representation of this language, as well as for its interpretation and has been prepared for automated production systems of industrial applications. This third edition cancels and replaces the second edition published in 2002 and constitutes a global technical revision with the extended definition of the concept of variables introducing: internal variable, input variable and output variable.

  • Standard
    109 pages
    English and French language
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IEC 61360-2:2012 provides a formal model for data according to the scope as given in IEC 61360-1 and ISO 13584-42. It provides a means for the computer-sensible representation and exchange of such data, allowing for the implementation of dictionary systems dealing with data delivered according to either of the standards. This third edition cancels and replaces the second edition published in 2002, and its Amendment 1 (2003). It is a technical revision. It includes the following significant technical changes:
- separation of concepts between characterization class and categorization class;
- introduction of value constraints on classes and properties;
- addition of various new subtypes for data types, including rational_type;
- improvement on the representation of unit of measurement.
IEC 61360-4, IEC reference collection of standard data element types and component classes, can be accessed from IEC CDD (Common Data Dictionary) Free access to Database. The database contains the IEC reference collection of classes and associated characteristic properties (data element types or DETs) of electric/electronic components including materials, geometry and features used in electrotechnical equipment and systems. The dictionary and database follow the methodology of Part 1 of IEC 61360 and the information model of Part 2.
IEC 61360-2:2012 has the status of a horizontal standard in accordance with IEC Guide 108.

  • Standard
    355 pages
    English and French language
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IEC/TS 62771:2012(E) contains a formal reference information model of the concepts and methods established in IEC 81346-1, IEC 81346-2, IEC 61175, IEC 61666 and IEC 81714-3, which are its normative basis.

  • Technical specification
    21 pages
    English language
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IEC/TS 62768:2012(E) specifies how product committees, including committees producing horizontal standards, intending to submit Data Element Types (DETs) for inclusion in the IEC Component Data Dictionary (IEC CDD), should specify the source descriptions in their own standard; and specify the information to be sent to SC3D for inclusion in IEC CDD.

  • Technical specification
    21 pages
    English language
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IEC 62648:2012 provides guidelines to ensure that graphical symbols for use on equipment in IEC product publications are consistent with the requirements of horizontal standard IEC 60417, and ISO 7000. This document is intended to be used by any technical committees and subcommittees to develop graphical symbols for use on equipment for inclusion in their product publications. It has the status of a horizontal standard in accordance with IEC Guide 108.

  • Standard
    38 pages
    English and French language
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IEC 62023:2011 provides rules for applying a method of structuring technical information and documentation by using a main document (leading document) for the clustering of the information for each object. This second edition cancels and replaces the first edition of IEC 62023 published in 2000. This edition constitutes a technical revision. It includes the following substantial changes with respect to the previous edition:
- the terminology used in the publication has been adapted to the one used in IEC 81346-1:2009 and IEC 62507-1:2010;
- the figures have been adapted to the principles used in IEC 81346-1:2009 in order to better illustrate the interrelations between the standards;
- the examples in the annexes have been provided with comments.
IEC 62023:2011 has the status of a horizontal standard in accordance with IEC Guide 108.
The contents of the corrigendum of February 2012 have been included in this copy.

  • Standard
    65 pages
    English and French language
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IEC 80416-3:2002+A1:2011 provides guidelines for the application of graphical symbols for use on equipment in order to maintain visual clarity and overall consistency when such graphical symbols are applied. It stipulates the permissible extent by which a symbol original may be modified in reproduction for actual use on equipment. It bears the edition number 1.1. The technical content is therefore identical to the base edition and its amendment and has been prepared for user convenience. A vertical line in the margin shows where the base publication has been modified by amendment 1. Additions and deletions are displayed in red, with deletions being struck through. This consolidated version consists of the first edition (2002) and its amendment 1 (2011). Therefore, no need to order amendment in addition to this publication.

  • Standard
    28 pages
    English and French language
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IEC/TR 62711:2011(E) provides recommendations for consistent use of mnemonics and qualifying symbols to be applied to symbols representing devices used in systems for monitoring, protection, switching, and controlling of apparatus in electrical substations, generating stations, power utilization and conversion facilities, and equipment designed for automatic protection of power systems. The recommendations are intended for designers, manufacturers and engineers of such systems.

  • Technical report
    24 pages
    English language
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IEC 62027:2011 provides rules and guidelines for the presentation of information in object lists, and specific rules for such documents. It is applicable to object lists such as parts lists, function lists and location lists used in the design and engineering process intended to be supplied with the documentation. This edition includes the following substantial changes with respect to the previous edition:
- the terminology used in the publication has been adapted to the one used in IEC 81346-1:2009, IEC 62507-1:2010 and IEC PAS 62569-1:2009;
- the term "object list" has been introduced as the generic term, and "parts list" used as a specific term for object lists associated with the product structure;
- Annex A of the previous edition has been taken away and partly replaced by 6.2 and a reference to IEC 61355 DB;
- a new Annex A providing guidance on the presentation of subsets of characteristic properties has been introduced;
- a new Annex B providing source definitions and references to used data element types has been introduced;
- the examples in the annexes C, D and E (corresponding to B, C and D in the previous edition) have been provided with comments.
IEC 62027:2011 has the status of a horizontal standard in accordance with IEC Guide 108.

  • Standard
    66 pages
    English and French language
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Relates to grid systems for printed circuits to ensure compatibility between the printed circuits and parts to be mounted on them at the intersections of the grid.

  • Standard – translation
    13 pages
    Slovenian language
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IEC 62507-1:2010 specifies basic requirements for systems for the identification of objects (such as products, "items", documents, etc., excluding human individuals). It focuses on assigning identifiers to an object for referencing purposes. It includes recommendations for the human readable presentation of identifiers and its machine readable representation, to be considered when constructing the identifiers and identification numbers and also requirements for the application of identifiers in a computer sensible form in accordance with such systems, and requirements for their interchange.
It has the status of a horizontal standard in accordance with IEC Guide 108.

  • Standard
    111 pages
    English and French language
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IEC 61666:2010 establishes general principles for the identification of terminals of objects within a system, 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 second edition cancels and replaces the first edition of IEC 61666 published in 1997 and edition constitutes a technical revision. It includes the following substantial changes with respect to the previous edition:
- the terminology used in the publication has been adapted to the one used in IEC 81346-1 Ed. 2;
- a more comprehensive description of the designation principles is provided;
- additional examples illustrating terminal designations related to the function aspect and location aspect are provided;
- an additional example illustrating the use of terminal designation sets is provided;
- the former informative Annex A has been turned into a clause in the standard.
IEC 61666:2010 has the status of a horizontal standard in accordance with IEC Guide 108

  • Standard
    32 pages
    English and French language
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ISO 81714-1 was prepared jointly by Technical Committees ISO/TC 10, Technical product documentation, Subcommittee SC 10, Process plant documentation and tpd-symbols, and IEC/TC 3, Information structures, documentation and graphical symbols. The draft was circulated for voting to the national bodies of both ISO and IEC.

  • Standard
    14 pages
    English language
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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.

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    168 pages
    English and French language
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IEC 80416-1:2008 provides basic principles and guidelines for the creation of graphical symbols for registration, and provides the key principles and rules for the preparation of title, description and note(s). This second edition cancels and replaces the first edition published in 2001. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) Clause 8 in the previous edition is moved to Clause 4;
b) Mandatory requirement for the line width in symbol originals is changed to 2 mm or 4 mm (see 6th paragraph of 7.3);
c) For negation of a graphical symbol, a single diagonal bar is allowed in addition to two diagonal bars at right angles;
d) A new meaning of negation "do not" is allowed;
e) Some freedom is given for use of the basic pattern such as for symbol originals to be within the 75 mm square instead of the octagon;
f) Annex A (normative) is newly introduced for provisions on title, description and notes;
g) The nature of notes is changed to be purely informative; and
h) Clause 10 in the previous edition is moved to Annex C (informative).
It has the status of a horizontal standard in accordance with IEC Guide 108. This International Standard has been prepared in co-operation with ISO/TC145/SC 3. It is published as a double logo standard.

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    45 pages
    English and French language
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IEC 61355-1:2008 provides rules and guidelines for the classification of documents based on their characteristic content of information. This second edition cancels and replaces the first edition published in 1997. The main changes with respect to the previous edition are listed below:
- Table A.2 has been extended under code P;
- Table B.1 in the first edition has been omitted from this second edition; it is being replaced by a separate standard in database format IEC 61355 DB.
IEC 61355 DB database provides brief definitions of a set of internationally standardized document kinds, including requirements on the contents of information, references to appropriate sources and the applicable classification in accordance with IEC 61355-1. IEC 61355 DB is intended to be used in conjunction with IEC 61355-1 ed2.0.
IEC 61355-1:2008 has the status of a horizontal standard in accordance with IEC Guide 108.

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    85 pages
    English and French language
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IEC 62491:2008 provides rules and guidelines for the labelling of cables and cores/conductors used in industrial installations, equipment and products, in order to maintain a clear relation between the technical documentation and the actual equipment and for other purposes. International Standard IEC 62491 has been prepared by IEC technical committee 3: Information structures, documentation and graphical symbols.

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    60 pages
    English and French language
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Contains conventions, helpful when applying IEC 60617 to symbols for catalogues of real devices, and shows preferable choices where alternative techniques are provided in the standard. It also helps to create symbols having as consistent an appearance as possible, not depending on the originator, while still accurately representing the function.

  • Technical report
    37 pages
    English and French language
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Gives recommendations, mainly to designers and manufacturers of integrated circuits, in order to arrive at symbols for devices with a consistent use of mnemonics and qualifying symbols. Is intended to serve two purposes, namely: - for white-box symbols, gives a review of standardized designations; - for gray-box symbols, is intended to limit the range of possible variations.

  • Technical report
    48 pages
    English and French language
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IEC 81714-2:2006 Specifies requirements for graphical symbols to be included in a reference symbol library in a computer sensible form, and requirements for their interchange among computer aided tools. The reference symbol library may be used as a basis for the design and editing of documents, and for the interchange of documents and graphical symbol libraries among computer-aided tools.

  • Standard
    169 pages
    English and French language
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ISO 80416-4:2005 provides guidelines for the adaptation of graphical symbols for use on screens and displays (icons) on a wide range of equipment, such as photocopiers, vehicle dashboards and home appliances. It also provides principles for maintaining the fidelity of icons to the original graphical symbols.

  • Standard
    19 pages
    English language
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