Izinyathelo ezijwayelekile zokuthuthukisa ukuzinza okushisayo kwezintambo ezibonakalayo ze-OPGW:
1. Indlela ye-Shunt line
Inani lekhebula le-OPGW optical liphezulu kakhulu, futhi akukhona ukonga ukumane ukwandise ingxenye enqamulayo ukuze ithwale i-short-circuit current.Ivamise ukusetshenziselwa ukusetha intambo yokuvikela umbani ehambisana nekhebula yokubona ye-OPGW ukuze kuncishiswe ukusebenza kwentambo yokubona ye-OPGW.
Ukukhethwa komugqa we-shunt kufanele kuhlangabezane:
a.Kukhona i-impedance ephansi ngokwanele yokwenza ukwehla kwamanje kwe-OPGW ngaphansi kwevelu evumelekile;
b.Ingakwazi ukudlulisa umthamo wamanje omkhulu ngokwanele;
c.Ngenkathi uhlangabezana nezidingo zokuvikela umbani, kufanele kube nesici sokuphepha samandla esanele.
Kumele futhi kuqashelwe ukuthi nakuba ukumelana komugqa we-shunt kungancishiswa kakhulu, ukusabela kwayo kwe-inductive kwehla kancane, ngakho-ke indima yomugqa we-shunt inqunyelwe;umugqa we-shunt ungasekelwe esimweni samanje se-short-circuit ezungeze umugqa Ukukhetha kwe-Sectional, kodwa ekushintsheni komugqa we-shunt ukushintsha isigaba semodeli, uma izigaba ezimbili zinomehluko omkhulu, okwamanje kuzosatshalaliswa ku-OPGW. ikhebula, elizokwenza ukuthi ikhebula le-OPGW likhule ngokuzumayo.Ngakho-ke, i-cross-section yomugqa we-shunt kufanele ihlolwe ngokuphindaphindiwe.
2. Ukusetshenziswa okufanayo kwezintambo ze-OPGW zokucaciswa okubili
Ngemigqa emide, ngenxa yokuthi i-short-circuit current esigabeni sokuphuma esiteshini esikhulu kunazo zonke, kufanele kusetshenziswe ikhebula le-optical le-OPGW eliphambanayo elikhudlwana;ulayini osuka esiteshini esincane usebenzisa ingxenye encane yentambo yokubona ye-OPGW.Izinhlobo ezimbili zemigqa ye-shunt kufanele zicatshangelwe lapho kukhethwa izinhlobo ezimbili zezintambo ezibonakalayo ze-OPGW.
3. Indlela yokuguqula engaphansi komhlaba
Xhuma idivayisi yaphansi yombhoshongo wetheminali kanye negridi yaphansi yesiteshi esincane ngezinsimbi eziningana eziyindilinga ezineziphambano ezifanele, ukuze ingxenye yamanje ye-short-circuit current ingene esiteshini esingaphansi komhlaba, enganciphisa kakhulu amandla amanje e-OPGW optical. ikhebula.
4. Indlela ehambisanayo yemigqa yokuvikela imibani yezifunda eziningi
Xhuma izisetshenziswa zaphansi zamatheminali ambalwa ukuze wenze ukugeleza kwamanje kwesiyingi esifushane kungene esiteshini esiseduze kolayini wokuvikela umbani onamaluphu amaningi, ukuze umsinga oyisekhethi eyodwa unciphe kakhulu.Uma ukuzinza okushisayo kwekhebula le-OPGW lesibili kungathembeki, idivayisi yokumisa phansi yombhoshongo wesisekelo sesibili ingaxhunywa, njalonjalo.Kodwa kufanele kuqashelwe ukuthi ukuvikelwa kokulandelana kwe-relay zero kufanele kucatshangelwe lapho kuxhunywa imibhoshongo eminingi.