Constructive characteristic of distribution lines

U ovom radu, ukratko je opisan zadatak i cilj elektroenergetskog sustava s naglaskom na nadzemne vodove. Opisano je ponašanje nadzemnih vodova pri utjecaju klimatskih uvjeta (temperatura, dodatni teret i vjetar). Pojedinačno su opisani elementi nadzemnog voda (temelj, uzemljivač, stupovi, izolatori, vodiči, zaštitna užad). Obrađene su konstruktivne karakteristike nadzemnih vodova za izgradnju niskonaponskih i srednjenaponskih distribucijskih mreža (vodovi do 35 kV). Uz to, prikazana je metodologija izbora i dimenzioniranja svakog od elemenata nadzemnog voda. Pomoću računalnog alata PLS-CADD-a, izvršen je mehanički proračun jednog nadzemnog vodiča za odabranu dionicu distribucijskog voda. Prikazani su rezultati mehaničkog proračuna vodiča u ovisnosti o temperaturi, dodatnom opterećenju i vjetru.In this final work is described task and purpose of an electric power system with focus on overhead lines. Also, it is described behaviour of overhead lines with influence of climate factors (temperature, extra load and wind). Singularly are described elements of overhead lines. Constrictive characteristics are processed for overhead lines for the construction of low voltage and medium voltage distribution networks (lines up to 35 kV). With that it’s also presented methodology of choice and dimensioning of every element of overhead lines. Using the PLS-CADD computer tool, a mechanical calculation of the overhead conductor was performed for the selected distribution water section. The mechanical calculation results of the guides are presented in terms of temperature, additional load and wind