Construction Of The R2-Bis Switchgear Building With Water, Sewage And Electricity Connections, Construction Of Roads And Internal Squares, Reconstruction Of The Existing One And Construction Of A New Fence, Construction Of New And Reconstruction Of Existing 3Kv Stations For Powering Wagon Trains, Construction Of A Network Of Power Supply, Return And Control Cable Lines For 3Kv Stations Supplying Power To Trains On The Warsaw Railway Siding (EXPIRED)