Paper presents a calculation of the electric field distribution around the 400 kV transmission lines in power system of Bosnia and Herzegovina (B&H). Method of equivalent charges was used for the calculation of the electric field at arbitrary points in the vicinity of high-voltage transmission lines. Transmission lines with standard tower′s dimensions, as well as lines with reduced (compact) tower′s dimensions were considered. Comparisons between calculated and measured results of electric field values around the transmission line with the standard dimensions of the tower on 400 kV line Sarajevo 10 -Sarajevo 20 was performed.
In this ar ti cle the sum mary of mea sure ment and cal cu la tion val ues of low fre quency elec tric field ra di a tion around the high-volt age trans mis sion lines and im pact of the in creased volt age val ues on the AC co rona on set volt age gra di ent are pre sented. The mea sure ments of the low fre quency elec tric field ra di a tion level were per formed un der the 400 kV trans mis sion lines of hor i zon tal con fig u ra tion with stan dard and com pact di men sions. In all cases an a lyzed in this ar ti cle, the mea sure ments are per formed in the mid dle of the span, be cause at this point the con duc tors are clos est to the ground. The anal y sis in this ar ti cle has been ini ti ated by the increased volt age val ues of long du ra tion that have been reg is tered in nodes of the 400 kV network in Bosnia and Herzegovina and the neigh bour ing coun tries dur ing the last years. The cal cu la tion of the low fre quency elec tric field ra di a tion of the dif fer ent con fig u ra tion of the high-volt age trans mis sion lines will be use ful for de ter min ing the non-ion iza tion ra di a tion ex po sure lev els of the gen eral pub lic in the fu ture as well as to de ter mine their im pact on the AC co rona on set volt age gra di ent.
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