Cabinets of communication equipment PKUS SR24 were installed at the facilities: SS 330 kV Petrozavodsk, SS 330 kV Kondopoga, SS 330 kV Syas’, SS 220 kV Drevlyanka and Kirishskaya SDPP by titles «Construction of AL 330 kV Ondskaya HEP - SS 330 kV Petrozavodskaya approximately 278 km» and «Construction of AL 330 kV Ondskaya HEP – Petrozavodskaya. 5 stage» at the end of December 2021.