WG 1 - TC 122/WG 1
TC 122/WG 1
General Information
Frequently Asked Questions
WG 1 is a Technical Committee within the International Electrotechnical Commission (IEC). It is named "TC 122/WG 1". This committee has published 1136 standards.
WG 1 develops IEC standards in the area of Information technology. Currently, there are 1136 published standards from this technical committee.
The International Electrotechnical Commission (IEC) is the world's leading organization for the preparation and publication of international standards for electrical, electronic, and related technologies. Founded in 1906, the IEC provides a global platform for companies, industries, and governments to meet, discuss, and develop the international standards they require.
A Technical Committee (TC) in IEC is a group of experts responsible for developing international standards in a specific technical area. TCs are composed of national member body delegates and work through consensus to create standards that meet global industry needs. Each TC may have subcommittees (SCs) and working groups (WGs) for specialized topics.
IEC TS 63042-103:2025, which is a Technical Specification, specifies the basic security and stability requirements for UHV AC transmission systems in planning and design, the security and stability criteria, and security and stability analysis method for the UHV AC transmission systems.
This document is applicable to power grids of UHV AC systems and their associated equipment and connected systems.
- Technical specification26 pagesEnglish languagesale 15% off
IEC TS 63042-102:2021(E) specifies the procedure to plan and design UHV transmission projects and the items to be considered.
The objective of UHV AC power system planning and design is to achieve both economic efficiency and high reliability, considering its impact on EHV systems.
- Technical specification67 pagesEnglish languagesale 15% off
IEC TS 63042-101:2019(E) specifies reactive power compensation design, voltage regulation and control, and insulation design for the coordination of UHV AC transmission systems.
- Technical specification30 pagesEnglish languagesale 15% off





