TRM - Terminology

IEC 60050-103:2009 gives the terminology relative to functions of one or more variables. Together with IEC 60050-102, it covers the mathematical terminology used in the fields of electricity, electronics and telecommunications. It maintains a clear distinction between mathematical concepts and physical concepts, even if some terms are used in both cases. Mathematical symbols are generally in accordance with IEC 60027-1 and ISO 80000-2. This standard cancels and replaces Sections 101-13, 101-14 and 101-15 of International Standard IEC 60050-101:1998.
It has the status of a horizontal standard in accordance with IEC Guide 108.

This part of IEC 60050 gives the general mathematical terminology used in the fields of electricity, electronics and telecommunications, together with basic concepts in linear algebra. It maintains a clear distinction between mathematical concepts and physical concepts, even if some terms are used in both cases. Another part will deal with functions.
It has the status of a horizontal standard in accordance with IEC Guide 108.

IEC 60050-112:2010 gives the general terminology concerning quantities and units, the terminology of SI, terms used in names and definitions of quantities, and some basic concepts in metrology. It cancels and replaces Sections 111-11 and 111-12 of International Standard IEC 60050-111:1996.
It has the status of a horizontal standard in accordance with IEC Guide 108.

IEC 60050-741:2020 provides a definition of Internet of Things along with related terms and definitions. It has the status of a horizontal standard in accordance with IEC Guide 108:2006. This terminology is consistent with the terminology developed in the other specialized parts of the IEV.

IEC 60050-811:2017 gives the general terminology relating to electric traction used in electrical equipment and systems for railways, as well as general terms pertaining to specific applications and associated technologies. This new edition reviews and complements the previous one. This terminology is consistent with the terminology developed in the other specialized parts of the IEV.
It has the status of a horizontal standard in accordance with IEC Guide 108.

IEC 60050-692:2017 gives the terminology used when considering the dependability and quality of service of electric power systems. The concepts are categorized according to the following sections:
- system concepts;
- operating states of electric power systems;
- failures in electric power systems;
- outages of electric power systems equipment;
- outage occurrences in electric power systems;
- state durations and availability related concepts;
- interruptions in electric power systems;
- selected customer interruption measures;
- bulk electric power system load/energy curtailments;
- bulk electric system failures and measures;
- supply performance measures.
This terminology is consistent with the terminology developed in the other specialized parts of the IEV.
It has the status of a horizontal standard in accordance with IEC Guide 108.

This part of IEC 60050 gives the general terminology used for electrical installations such as
those of residential, industrial or commercial premises. It does not cover systems for distribution
of energy to the public or power generation and transmission for such systems. This new edition
reviews and complements the previous one. An important aim of the revision is to achieve
compliance with IEC 61140:2016. In addition, some new terms have been added from
IEC 60364-8-1:2014 and IEC 60364-8-2:2018. It has the status of a horizontal publication in
accordance with IEC Guide 108, Guidelines for ensuring the coherence of IEC publications –
Horizontal functions, horizontal publications and their application.
This terminology is consistent with the terminology developed in the other specialized parts of
the IEV.
This horizontal publication is primarily intended for use by technical committees in the
preparation of IEC publications 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 publications in the preparation of its publications

IEC 60050-614:2016 gives the general terminology used in the generation, transmission and distribution of electricity, as well as general terms pertaining to specific applications and associated technologies. This terminology is consistent with the terminology developed in the other specialized parts of the IEV.
It has the status of a horizontal standard in accordance with IEC Guide 108.

This part of IEC 60050 gives the general terminology used in environmental standardization
for electrical and electronic products and systems. It has the status of a horizontal standard in
accordance with IEC Guide 108, Guidelines for ensuring the coherency of IEC publications –
Application of horizontal standards.
This terminology is consistent with the terminology developed in the other specialized parts of
the IEV.
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 content of this horizontal
standard will not apply unless specifically referred to or included in the relevant publications.

IEC 60050-871:2018 gives the general terminology used in active assisted living, as well as general terms pertaining to specific applications and associated technologies. This terminology is consistent with the terminology developed in the other specialized parts of the IEV.
It has the status of a horizontal standard in accordance with IEC Guide 108.

IEC 60050-904:2015 gives the general terminology used in the field of environmental standardization for electrical and electronic products and systems. It has the status of a horizontal standard in accordance with IEC Guide 108. This terminology is consistent with the terminology developed in the other specialized parts of the IEV.

Describes the procedure for determining the error introduced in the testing of a photovoltaic device caused by the interaction of the mismatch between the spectral responses of the test specimen and the reference device, and the mismatch between the test spectrum and the reference spectrum.

IEC 60050-821:2017 gives the general terminology relating to signalling and security apparatus for railways, as well as general terms pertaining to specific applications and associated technologies. This new edition reviews and complements the previous one. This terminology is consistent with the terminology developed in the other specialized parts of the IEV.
It has the status of a horizontal standard in accordance with IEC Guide 108.

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

IEC 60050-192:2015 gives the general terminology used in the field of dependability. The terms are generic and are applicable to all fields of dependability methodology, including electrotechnical applications. The document is not an exhaustive vocabulary for all IEC standards in the dependability field: definitions for some specialized terms may only be found in the relevant standards. This document replaces sections 1 to 20 of IEC 60050-191:1990, which has been subjected to a systematic, in-depth review and revision, in order to reflect the current usage of the terms in the dependability field, to introduce new terms from new or revised standards, and other informed sources, and to provide a grammatical form, and presentation to comply with the IEC directives. It has the status of a horizontal standard in accordance with IEC Guide 108:2006. This terminology is consistent with the terminology developed in the other specialized parts of the IEV.

IEC 60050-461:2008, which is a part of the IEV, covers terms and definitions used within the scope of TC 20 "Electric cables". This second edition cancels and replaces the first edition published in 1984, its Amendment 1 (1993) and its Amendment 2 (1999). This edition is a consolidated version of the first edition and its Amendments 1 and 2. Therefore the order of the terms are given in their historical order. A renumbering and addition or deletion of terms is proposed for the next maintenance cycle.
It has the status of a horizontal standard in accordance with IEC Guide 108.

See also IEC 60777.

In some cases, it has been necessary to include in an IEV part a concept taken from another
IEV part, or from another authoritative terminology document (VIM, ISO/IEC 2382, etc.), in
both cases with or without modification to the definition (and possibly to the term).
This is indicated by the mention of this source, printed in lightface, and placed between
square brackets at the end of the definition.
Example: [131-03-13 MOD]
(MOD indicates that the definition has been modified)
Terms in additional IEV languages
These terms are placed at the end of the entry, on separate lines (one single line for each
language), preceded by the alpha-2 code for the language defined in ISO 639, and in the
alphabetic order of this code. Synonyms are separated by semicolons.

Comprises some 950 terms and definitions to promote international standardization in the use of quantities, units, symbols and terminology in the field of lighting. Is also CIE Publication 17.4: International Lighting Vocabulary. It has the status of a horizontal standard in accordance with IEC Guide 108.

This standard gives the common terms for dependability and for the quality of service in telecommunications. With translations in dutch of the terms.