Namuhla, i-GL ikhuluma ngezinyathelo ezijwayelekile zokuthi ungathuthukisa kanjani ukuzinza kwekhebuli ye-OPGW:
1: Indlela ye-Shunt line
Intengo yekhebula ye-OPGW iphezulu kakhulu, futhi akukhona ukonga ukumane ukwandise ingxenye enqamulayo ukuze ithwale i-short-circuit current.Ivamise ukusetshenziselwa ukusetha intambo yokuvikela umbani ehambisana nekhebula ye-OPGW ukuze kwehliswe ukusebenza kwekhebula 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.
Kufanele futhi kuqashelwe ukuthi nakuba ukumelana komugqa we-shunt kungancishiswa kakhulu, ukusabela kwayo kwe-inductive kwehla kancane, ngakho indima yomugqa we-shunt inomkhawulo othile;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
Olayini abade, ngenxa yombane omkhulu wesekethe emfishane engxenyeni yokuphuma esiteshini, intambo enkulu ye-OPGW yesigaba esiphambanayo kufanele isetshenziswe;ulayini osuka esiteshini esincane usebenzisa ikhebuli ye-OPGW yesigaba esiphambanayo esincane.Izinhlobo ezimbili zemigqa ye-shunt kufanele zicatshangelwe lapho kukhethwa izintambo ezimbili ze-OPGW.
3: Indlela yokuguqula engaphansi komhlaba
Xhuma idivayisi yaphansi yombhoshongo wetheminali kanye negridi yaphansi yesiteshi esinezinsimbi eziningana eziyindilinga ezineziphambano ezifanele, ukuze ingxenye yamanje ye-short-circuit ingene esiteshini esingaphansi komhlaba, enganciphisa kakhulu ukusebenza kwentambo ye-OPGW. .
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.
