Izinyathelo zokuqapha ngesikhathi kwakhiwa i-FTTH
Ngenxa yokusetshenziswa okubanzi kwethemba lenethiwekhi yokubona ngokuzayo, ikwazile ukuqinisekisa ukuthi i-FTTH izoba Umkhuba oyinhloko wentuthuko yesikhathi esizayo. Kulokhu, kuyadingeka ukugxila ekwakhiweni kwenethiwekhi ye-FTTH optical, ikakhulukazi ukwakhiwa esigabeni sokungena kwe-Fiber-optic, ukuze kuzuzwe umgomo jikelele wokuthuthukisa ikhwalithi yomsebenzi kanye nayo yonke inethiwekhi yokudluliswa kwedatha.
Kafushane, kunamaphuzu amabili asemqoka okufanele aqashelwe ohlelweni lokwakhiwa kwefayibha ye-FTTH ekhaya.
Dedela ukukhetha kwekhebula
Okwamanje esetshenziselwa ukukhetha kwe-FTTH optical fibre yangaphakathi ikhebula lefiber optical elimise okwemvemvane, elibizwa nje ngokuthi ikhebula le-butterfly optical. Lolu hlobo lwekhebula le-fiber optic lingabuye lihlukaniswe libe yikhebula yasendlini kanye nekhebula elizisekelayo. Ngokuyisisekelo ziyafana ngesakhiwo, zifakwe amalungu aqinisayo namajakhethi nhlangothi zombili zomucu. Umehluko wukuthi ikhebula le-optical elizisekela ngokwayo liphinde lixhunywe eceleni kocingo olulengayo, olungathuthukisa ngokuphumelelayo izakhiwo zemishini yekhebula ngokwayo.
Ekukhetheni izintambo ze-butterfly optical, kufanele kuqashelwe ukuthi izintambo ze-wiring zangaphakathi zingahlukaniswa zibe izinhlobo ezimbili zamalungu okuqinisa insimbi kanye namalungu angenawo insimbi ngokusho kwamalungu ahlukene aqinisayo. Ngokuphambene, amalungu angewona ama-metallic aqinisa izintambo ze-butterfly optical. Amandla okusebenza angabekezelela mancane kakhulu, ngakho-ke ukuze angadali umonakalo kumongo we-fiber optical, izintambo ze-butterfly optical fiber eziqiniswe ngensimbi zivame ukusetshenziswa, kanti ingxenye engeyona eyensimbi eqinisa intambo ye-butterfly optical fiber isetshenziswa kuphela izikhathi lapho kunesidingo esikhulu sokuvikela umbani.
Ukufakwa kwekhebula lokuwisa
Ukuvikeleka kwekhebula le-fiber optic yendawo yokuhlala kudinga ukucabangela izici ezimbili. Enye iwukuvikelwa kwekhebula le-optical ngokwayo ekungeneni kwekhaya, kanti enye iyindlela yokwelapha ikhebula le-optical inqubo yokubeka.
Okokuqala, ukugxila komsebenzi kulele ekumisweni kwamapayipi e-PVC, ngoba akuwona wonke ama-cable entry shaft endaweni yasekhaya akhona, kodwa endaweni yokungena ngaphandle kwe-shaft, ipayipi ye-PVC iyadingeka. Kulesi simo, kufanele kuqale kuqashelwe ukuthi ukucaciswa kwepayipi le-PVC kungahlangabezana nezidingo zokubeka ikhebula, futhi ubushelelezi bepayipi lepayipi le-PVC kudingeka lihlolwe ukuze kuvinjelwe ama-burrs noma imiphetho ecijile ukuthi ingalimazi ikhebula. Amapayipi e-PVC akumele abe nemifantu noma amazinyo, futhi angathatha ngempumelelo isibopho sokuvikela ikhebula layo langaphakathi.
Okokugcina, ukunakwa kufanele kukhokhwe emandleni emishini ikhebula le-optical elidinga ukuthwala. Okugxilwe kukho kuhlanganisa kokubili amandla aqinile namandla okuchoboza.Izinhlobo ezahlukene zamakhebuli zibonisa amandla okuthwala ahlukene.Ngokujwayelekile, izintambo ezingezona ezensimbi ezakhelwe ngaphakathi endlini izintambo ze-butterfly optical zingamelana namandla aqinile angu-40N kanye namandla okuhlanganisa angu-500N/100mm, kuyilapho ikhebula lensimbi eliqiniswe ngensimbi yasendlini Intambo ye-butterfly optical fiber ingamelana namandla aqinile angu-100N futhi 1000N/100mm amandla okuchoboza. Ikhebuli yefayibha yovemvane ezisekelayo ingamelana namandla aqinile angu-300N kanye namandla okuchoboza angu-1000N/100mm. Enqubweni yangempela yomsebenzi, ikhebula le-optical kufanele likhethwe ngokuvumelana nezindawo zokusebenza ezahlukene.
Ekukhetheni izintambo ze-butterfly optical, kufanele kuqashelwe ukuthi izintambo ze-wiring zangaphakathi zingahlukaniswa zibe izinhlobo ezimbili zamalungu okuqinisa insimbi kanye namalungu angenawo insimbi ngokusho kwamalungu ahlukene aqinisayo. Ngokuphambene, amalungu angewona ama-metallic aqinisa izintambo ze-butterfly optical. Amandla okusebenza angabekezelela mancane kakhulu, ngakho-ke ukuze angadali umonakalo kumongo we-fiber optical, izintambo ze-butterfly optical fiber eziqiniswe ngensimbi zivame ukusetshenziswa, kanti ingxenye engeyona eyensimbi eqinisa intambo ye-butterfly optical fiber isetshenziswa kuphela izikhathi lapho kunesidingo esikhulu sokuvikela umbani.
