CLC/SR 3 - Information structures, documentation and graphical symbols

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 is a horizontal publication also intended for 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.

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.

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.

This document 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.

No scope available

This document 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 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.

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, and it has become a horizontal publication in accordance with IEC Guide 108; 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.

Transfer of the IEC/IEEE 82079-1 (replacement of IEC 82079-1:2012) to an equivalent EN (replacement of EN 82079-1:2012).

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. 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.

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.

NEW! IEC 61082-1:2014 is available as IEC Standards+ 61082-1:2014 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. 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.

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.

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. The contents of the corrigendum of February 2012 have been included in this copy.

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 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.

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 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 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.

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.

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. It has the status of a horizontal standard in accordance with IEC Guide 108.

Provides a comprehensive set of standardized metadata elements for document management. Includes a standardized EXPRESS-based information reference model. Provides a standardized framework for data exchange and a basis for the implementation of a document management system. Also provides a standardized DTD based on the XML language for document exchange.

Establishes general actuating principles for manually operated actuators forming part of the man-machine interface associated with electrical equipment, in order to increase the safety through the safe operation of the equipment and facilitate the proper and timely operation of the actuators.

Establishes general rules for assigning particular meanings to certain visual, acoustsic and tactile indications. Has the status of a basic safety publication in accordance with IEC Guide 104.

Specifies principles and methods to define metadata for the management of documents associated with objects throughout their life cycle; This cycle generally covers a range from the conceptual idea of a document to its deletion. The established principles and methods are basic for all document management systems. This part is intended as a general basic standard in all application fields and provides the framework applicable for part 2. International Standard 82045 is primarily intended as a resource for the use in computerised systems such as Electronic Document Management Systems (EDMS) or Product Data Management Systems (PDMS) for the management, retrieval, storage and selection and archiving of documents, and as a basis for the exchange of documents.

Specifies primarily requirements concerning the classification of connect nodes assigned to graphical symbols, being a representation of functional and product concepts. Basic rules are given in ISO/IEC 11714-1

IEC 81355-1:2024 provides rules and guidelines for the classification and designation of information containers based on their inherent content. This document is applicable for information used in the life cycle of a system, e.g., industrial plants, construction entities and equipment. This document defines classes of information and their information kind classification code (ICC). The defined classes and codes provided are used as values associated with metadata, e.g., in information management systems (see IEC 82045-1 and IEC 82045-2). The rules, guidelines and classes are general and are applicable to all technical areas, for example, mechanical engineering, electrical engineering, construction engineering and process engineering. They can be used for systems based on different technologies or for systems combining several technologies. This document also has the status of a horizontal publication in accordance with IEC Guide 108. It is intended for use by technical committees in preparation of publications related to classification and designation of information. IEC 81355-1:2024 cancels and replaces the second edition of IEC 61355-1 published in 2008. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 61355-1:2008: a) focusing on classification of information rather that classification of document kinds; b) introduced a classification scheme based on inherent content of information; c) introduced a distinction between an information container and a document, the latter being for human perception; d) introduction of information kind classification code (ICC), replacing document kind classification code (DCC); e) introduced structuring of information containers; f) introduced an information model of the concepts dealt with; g) introduced a conversion table for merging from the use of DCC to the use of ICC.

NEW!IEC 60445:2017 is 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.

IEC 82079-1:2012 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. This first edition cancels and replaces IEC 62079 published in 2001. It constitutes a technical revision.

IEC 60445:2010 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 fifth edition is a merged version of IEC 60445 and IEC 60446, and cancels and replaces the fourth edition of IEC 60445, published in 2006, and the fourth edition of IEC 60446, published in 2007. It has the status of a basic safety publication in accordance with IEC Guide 104. This edition includes the following significant technical changes with respect to the previous edition: - addition of new definitions in Clause 3; - revision of some clauses to use words from reference IEC standards. These revisions did not change any technical requirements but to clarify the wording; - addition of Annex B (informative) 'List of notes concerning certain countries'.

IEC 81346-2:2009, published jointly by IEC and ISO defines classes and subclasses of objects based on a purpose- or task-related view of the objects, together with their associated letter codes to be used in reference designations. The classification is applicable for objects in all technical areas, e.g. electrical, mechanical and civil engineering as well as all branches of industry, e.g. energy, chemical industry, building technology, shipbuilding and marine technology, and can be used by all technical disciplines in any design process.

IEC 61082-1:2006 provides general rules and guidelines for the presentation of information in documents, and specific rules for diagrams, drawings and tables used in electrotechnology. It has the status of a horizontal standard in accordance with IEC Guide 108.

Provides rules for the composition of designations and names for the identification of signals and signal connections. Includes the designation of power supply circuits.

Specifies a standardized coded graphic character set for use in drawings and diagrams, and for the design of graphical symbols. Edition 2 describes the correspondence between this character set and that of ISO/IEC 10646-1.

Defines the GRAFCET specification language for the functional description of the behaviour of the sequential part of a control system.Specifies the symbols and the rules for the graphical representation of this language, as well as for its interpretation. This standard has been prepared for automated production systems of industrial applications.However no particular area of application is excluded.

D118/031: EN 60617-2:1996 up to EN 60617-11:1996 withdrawn

Provides general principles and detailed requirements for the design and formulation of all types of instructions that will be necessary or helpful for products of all kinds ranging from small, simple ones, such as tin of paint, to large or highly complex ones, such as a large industrial installation. If the paper version of this standard is ordered, a diskette is provided with fill-in tables corresponding to annexes B and C. If the standard is downloaded directly from the WEB, it consists of 2 files: The standard as a PDF file and the fill-in tables as a WORD file.

Provides rules for the structuring of technical information and documentation, based on the use of a main document (leading document) for the keeping together of information for each object.

Applicable to parts lists used in the design and engineering process intended to be supplied with the documentation

Defines object classes and associated letter codes for these classes to be used in reference designations. Applicable in all technical areas and may be applied at any position in a tree-like structure set up in accordance with EN 61346-1

Specifies requirements for graphical symbols to be included in a reference symbol library in a computer sensible form. The reference symbol library may be used as a basis for the design and editing of documents and for the interchange of documents and grahical symbol library among computer-aided tools. Basic rules are given in ISO/IEC 11714-1

Contains graphical symbols to represent dependency notation, combinative and sequential elements, as well as complex-function elements.

Provides rules for the designation of terminals of objects within a system for use in the electrotechnical and related areas. Applicable to all technical areas.

Serves as a basis for agreements about the preparation of a structured documentation for example plants with their systems and equipment. It covers all technical area and is open for further development of documentation and documentation systems

Resistors, capacitors, inductors, ferrite cores, magnetic storage matrices, piezoelectric crystals, electret, delay lines.

EN following parallel vote * D118/031: EN 60617-2:1996 up to EN 60617-11:1996 withdrawn

Telecommunication circuits, antennas and radio stations, microwave technology, miscellaneous block symbols, frequency spectrum diagrams and fibre optics.

EN following parallel vote * D118/031: EN 60617-2:1996 up to EN 60617-11:1996 withdrawn

Switching systems and equipment, telephone, telegraph and data equipment, transducers, recorders and reproducers.