Njengoba sonke sazi ukuthi umbani uwukukhipha ugesi wasemkhathini obangelwa ukunqwabelana kwamanani ahlukene ngaphakathi kwefu. Umphumela uba ukukhululwa kwamandla kungazelelwe okubangela ukuvuleka okugqamile okuhlukile, okulandelwa ukuduma kwezulu.
Isibonelo, ngeke kuthinte kuphela zonke iziteshi ze-fiber ye-DWDM ekuqhumeni okufushane, kodwa futhi kuthinte izikhombisi-ndlela zokudlulisela ngesikhathi esisodwa ngokusho kocwaningo oluningi. Kuyoze kubangele umlilo uma kukhona umbani ophumayo. Nakuba amasiginali akuzintambo zefayibha amasignali okukhanya, iningi lamakhebula okubona angaphandle asebenzisa ama-core aqinisiwe noma amakhebula okubona ahlomile kulula ukulinyazwa ngaphansi kombani ngenxa yongqimba lwensimbi oluvikelayo ngaphakathi kwekhebula. Ngakho-ke, kubalulekile ukwakha uhlelo lokuvikela umbani ezintanjeni ezivikela amehlo.
Isilinganiso 1:
Ukuvikela umbani kwemigqa yekhebula yomugqa oqondile: ① Imodi yokubeka phansi ehhovisi, izingxenye zensimbi kukhebula yokubona kufanele zixhunywe emajoyintini, ukuze umgogodla oqinisiwe, ungqimba oluvikela umswakama kanye nongqimba lwezivikelo lwengxenye ye-relay ye-optical. ikhebula ligcinwa esimweni esixhunyiwe. ②Ngokwemithethonqubo ye-YDJ14-91, ungqimba oluvikela umswakama, isendlalelo sezikhali kanye nomgogodla oqinisayo endaweni ehlangene yekhebula le-optical kufanele kunqanyulwe ngogesi, futhi azisekelwe phansi, futhi zifakwe ngaphansi komhlaba, ezingagwema ukunqwabelana umbani owenziwe wamanje kukhebula le-optical. Kungagwema ukuthi umbani osemhlabeni ungeniswa kukhebula le-optical ngedivayisi yokubeka phansi ngenxa yomehluko ekuvinjweni kocingo lokudonsa umbani wokuvikela umbani kanye nengxenye yensimbi yekhebula le-optical phansi.
| Ukuthungwa Kwenhlabathi | Izidingo Zocingo Zokuvikela Umbani Ezigxotsheni Ezijwayelekile | Izidingo Zocingo Ezigxotsheni Ezisethwe Ekuhlanganeni Kwemigqa Yokudluliswa kwamandla kagesi aphezulu | ||
|---|---|---|---|---|
| ukumelana (Ω) | isandiso (m) | ukumelana (Ω) | isandiso (m) | |
| I-Boggy Soil | 80 | 1.0 | 25 | 2 |
| Umhlabathi Omnyama | 80 | 1.0 | 25 | 3 |
| Ubumba | 100 | 1.5 | 25 | 4 |
| Inhlabathi Yetshe | 150 | 2 | 25 | 5 |
| Inhlabathi enesihlabathi | 200 | 5 | 25 | 9 |
Isinyathelo 2:
Ezintamboni ezibona phezulu: izintambo ezilenga phezulu kufanele zixhunywe ngogesi futhi zibekwe phansi njalo ngemva kuka-2km. Lapho ibekwa phansi, ingamiswa ngokuqondile noma isekelwe ngedivayisi efanelekile yokuvikela ukuhlinza. Ngale ndlela, intambo yokumiswa inomphumela wokuvikela wentambo engaphansi komhlaba.
| Ukuthungwa Kwenhlabathi | Umhlabathi Ovamile | Inhlabathi Yetshe | Ubumba | Umhlabathi weChisley |
|---|---|---|---|---|
| Ukungazweli Kagesi (Ω.m) | ≤100 | 101-300 | 301-500 | >500 |
| Ukumelana Nezintambo Zokumiswa | ≤20 | ≤30 | ≤35 | ≤45 |
| Ukumelana Nezintambo Zokuvikela Umbani | ≤80 | ≤100 | ≤150 | ≤200 |
Isinyathelo sesi-3:
Ngemva kweintambo yokubonaingena ebhokisini letheminali, ibhokisi letheminali kufanele limiswe phansi. Ngemva kokuba umbani wamanje ungene ongqimbeni lwensimbi lwekhebula le-optical, ukugxilwa kwebhokisi letheminali kungakhulula ngokushesha umbani futhi kudlale indima yokuvikela. Ikhebula le-optical elingcwatshwe ngokuqondile linongqimba lwezikhali kanye nomgogodla oqinisiwe, futhi i-sheath yangaphandle i-PE (polyethylene) sheath, engavimbela ngokuphumelelayo ukugqwala nokulunywa kwamagundane.
