GIS bushing: It's Not as Difficult as You Think

https://thepcatech.com/product/nexans-400sfr-plug-in-gis-bushing/

The Nexans Euromold 400SFR Plug-in GIS Bushing – Interface C2 is specially designed for medium voltage (MV) cable connections, ensuring safe, reliable, and touch-proof installations in power distribution networks.