During public comment periods (rare for IEC, more common for ISO), draft standards are free. However, IEC 60076-1:2021 is no longer in draft stage.
Many countries have agreements with IEC through their national standards body. If you are in a , you may access IEC standards for free via the IEC National Committee or the WTO TBT (Technical Barriers to Trade) portal.
in India). You may find these through local national standard bodies. Preview & Free Resources: IEC Webstore typically provides a free preview