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Analiza okvar v obratovanju in dopolnitve k navodilom za izgradnjo SN nadzemnih vodov s polizoliranimi PIV vodniki : ref. št. 1715Janša, Marko, 1965-2022 ; Vižintin, Stane ; Rozman, Stane, elektrotehnikPredmetna študijska naloga obravnava okvare, ki se pojavljajo pri obratovanju srednjenapetostnih polizoliranih vodov, ki so povezane predvsem z odžiganjem vodnikov na mestih vpetij in na mestih, kjer ... so pritrjeni zaščitni rogljiči oz. zaščitna iskrila. Izsledki študije so pridobljeni pretežno na osnovi raziskav o obremenitvah izpostavljenih delov nadzemnega voda s polizoliranimi vodniki in so namenjeni tako projektantom, izvajalcem in vzdrževalcem. Nadzemni vodi so zaradi nizke izolacijske stopnje izpostavljeni atmosferskim razelektritvam, pri tem pa v splošnem niso nevarni le direktni udari strel, pač pa tudi inducirane prenapetosti ob direktnih udarih. Pogosto se pojavljajo preskoki med faznimi vodniki in ozemljenimi deli ali med faznimi vodniki, odvisno od načina ozemljitve drogov polizoliranih vodov. To zahteva temeljito preučevanje fizikalne slike nastanka okvar ter ustrezno prilagoditev opreme in oblikovanje primernih tehničnih rešitev, ki bi omenjene težave uspešno odpravila. S tem bi lahko dosegli bistveno zmanjšanje števila pretrgov vodnika. Kljub temu ni mogoče izključiti možnosti pretrga vodnika ter z njo povezano težavo zaradi nevarnosti neposrednega dotika delov pod napetostjo, oz. nevarnost zaradi udara električnega toka, ki zahteva vgradnjo ustreznega sistema za detekcijo pretrga in takojšnjega izklopa.Type of material - treatise, studyPublication and manufacture - Ljubljana : Elektroinštitut Milan Vidmar, 2005Language - slovenianCOBISS.SI-ID - 26891525
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Janša, Marko, 1965-2022 | 13805 |
Vižintin, Stane | 05516 |
Rozman, Stane, elektrotehnik |
Source: Personal bibliographies
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