Pk30% - Construction Of A Power Network - Nn-0.4 Kv, Sn-15 Kv Cable Lines With Accompanying Infrastructure, Nn-0.4 Kv, Sn-15 Kv Overhead Lines, 15/0.4 Kv Container Transformer Stations And Demolition Of The Mv And Lv Power Grid In The Area Of ​​Operation Of The Ostrołęka Energy District