6IEC 62271-209-2007.Cable connections for gas-insulated metal-enclosed switchgear for rated voltage of 72.5 kV and above -Fluid-filled and extruded insulation cable-fluid- filled and dry type cable-terminations[S].
7IEC 62067-2011. Power cables with extruded insulation and their accessories for rated voltages above 150 kV (Um= 170 kV) up to 500 kV (Ua=550 kV)-Test methods and requi- rements[S].
