Back to projects Working drawings of 15 kV 49.2 km OHTL from Bayantes to Tes soum and substation in Zavkhan province 2020 Substation & OHTL 📍 Zavkhan, Bayantes 15 kV 49.2 km OHTL, 15/0.4 kV 250kVA substation x2, 400 kVA x1.