Vodovi i kablovi

Lines and cables

Nadzemni vod se proračunava mehanički, da provodnik u svim klimatskim uslovima izdrži naprezanja i da ugib ostane u granicama, i električno, preko podužnih parametara i zamenske šeme. Ovde su provodnici i izolatori, jednačina promene stanja i kritični raspon, otpornost, induktivnost i kapacitivnost vodova, π-šema, termičko opterećivanje nadzemnih vodova, energetski kablovi iz Razvodnih postrojenja i, sa UPC-a na engleskom, kablovi u HVDC sistemima.

An overhead line is calculated mechanically, so that the conductor bears its stresses in every climatic condition and its sag stays within limits, and electrically, through its per-length parameters and its equivalent circuit. Here are conductors and insulators, the equation of state and the critical span, the resistance, inductance and capacitance of lines, the π circuit, the thermal loading of overhead lines, power cables from Switchgear and Substations, and from UPC, in English, cables in HVDC systems.