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UHV AC transmission systems - Part 100: General information
60.60 Standard published
UHV AC transmission systems - Part 101: Voltage regulation and insulation design
60.60 Standard published
UHV AC transmission systems - Part 102: General system design
60.60 Standard published
UHV AC transmission systems - Part 103: Security and stability requirements for system planning and design
60.60 Standard published
UHV AC transmission systems - Part 201: UHV AC substation design
60.60 Standard published
UHV AC transmission systems - Part 202: UHV AC transmission line design
60.60 Standard published
UHV AC transmission systems - Part 301: On-site acceptance tests
60.60 Standard published
UHV AC transmission systems - Part 302: Commissioning
60.60 Standard published
UHV AC transmission systems - Part 303: Guideline for the measurement of UHV AC transmission line power frequency parameters
60.60 Standard published
UHV AC transmission systems - Part 401: Substation maintenance
60.60 Standard published
UHV AC transmission systems - Part 101: Voltage regulation and insulation design
20.99 WD approved for registration as CD
UHV AC transmission systems - Part 201: UHV AC substation design
30.60 Close of voting/ comment period
Evaluation of Lightning Protection Performance of UHV AC Transmission Lines
50.00 Final text received or FDIS registered for formal approval
UHV AC transmission systems - Part 302: Commissioning
20.99 WD approved for registration as CD
UHV AC transmission systems - Part 402: Overhead transmission line maintenance
30.20 CD study/ballot initiated
