Completion of the first stage of the construction works on Substation Helios 110/20kV
A Report No 2 opening the construction activities on Substation “Helios 110/20 KV” near the town of Slanchev bryag was signed on 11 April, 2011. Project has been assigned by NEC EAD as a client, ABB Bulgaria as the main executor and EL KONTROL as a subcontractor performing construction and erection works as well as commissioning.
