Sanation of safety clearances on high voltage overhead transmission powerline with installation of accc conductors

Magistrska naloga opisuje možne rešitve za sanacijo varnostnih višin na obstoječem 110 kV daljnovodu DV 110 kV Kidričevo – Breg – Ptuj – Formin. Ker trasa daljnovoda poteka večinoma po kmetijskih zemljiščih prihaja do nevarnosti preskoka med faznimi vodniki ter velikimi obdelovalnimi stroji, kar predstavlja resno nevarnost za upravljalce teh strojev. Konvencionalna rešitev bi bila popolna porušitev starega daljnovoda in postavitev novih višjih stebrov, vendar je omenjeni postopek sanacije, zaradi zakonodaje in upravnih postopkov zelo dolg. Težavo lahko saniramo v zelo kratkem času z zamenjavo klasičnih ACSR vodnikov z montažo vročih vodnikov z majhnim povesom (HTLS vodniki) – v našem primeru z vodnikom ACCC. Glavna tema tega dela je opis in rezultat sanacije varnostnih višin v primeru montaže ACCC vodnikov.This master thesis describes one of the possible solutions to increase safety clearances on high voltage overhead transmission line 110 kV Kidričevo – Breg – Ptuj – Formin. Above said power line lays mostly on agricultural areas where farmers cultivate their lands with big agricultural machinery. To prevent hazardous high voltage electrical flashover between phase conductor and machinery, there is need to increase safety clearances between the phase conductors and the earth. Conventional method would be demolishing of an old power line and construction of the new one with higher towers. Because of the national legislation and administrative procedures, this solution is not optimal. But if we replace classic ACSR conductors with »high temperature low sag conductors«, we can significantly increase safety clearances in short period. Second solution is the main subject of this thesis. We described and analyzed possibility of installation of ACCC conductors on high voltage overhead transmission line in order to increase safety clearances