This standard PD IEC TS 63042-302:2021 UHV AC transmission systems is classified in these ICS categories:
29.240.01 Power transmission and distribution networks in general
29.240.10 Substations. Surge arresters
This part of IEC 63042 applies to the commissioning of UHV AC transmission systems.
It mainly specifies the test purposes, test items, test preconditions, test methods and test acceptance criteria during pre-commissioning and system commissioning. Also, the measurement requirements for system commissioning are specified.