Terminology

IEC 60050-845:2020 gives the general terminology used in lighting, as well as general terms pertaining to specific applications and associated technologies. This second edition reviews and complements the previous one. It has the status of a horizontal publication in accordance with IEC Guide 108:2006. This terminology is consistent with the terminology developed in the other specialized parts of the IEV.

IEC 60050-821:2017 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 60050-692:2017 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.

IEC 60050-617:2009 has been published as a consequence of deregulation of the electricity market, it appeared necessary to establish a common glossary with those terms defining actors in the market, interface between actors and the technical or financial terms having a specific meaning in the context of electricity market. This horizontal standard IEC 60050-617:2009 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. The content of 60050-617 will be freely available at www.electropedia.org. Electropedia (also known as the IEV Online) is the world's most comprehensive online electrical and electronic terminology database containing more than 20 000 terms and definitions.
It has the status of a horizontal standard in accordance with IEC Guide 108.

IEC 60050-485:2020 gives the general terminology used in fuel cell technologies, 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.

Gives the general terminology used in the fields of primary and secondary cells and batteries, and reflects the technology, design, construction, performance and application employed. It has the status of a horizontal standard in accordance with IEC Guide 108.

Fundamental terms and terms related to protection relays, protection systems and automatic control equipment.
It has the status of a horizontal standard in accordance with IEC Guide 108.

IEC 60050-447:2020 gives the general terminology used in measuring relays and protection equipment, as well as general terms pertaining to specific applications and associated technologies. This new edition reviews and complements the previous one. 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.

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