I-Drop Optical Cable ibizwa nangokuthi i-Bow-type drop cable (yezintambo zasendlini). Iyunithi yokuxhumana ye-optical (i-fiber optical) ibekwe phakathi nendawo, futhi amalungu amabili ahambisanayo angewona awensimbi (FRP) noma amalungu amandla ensimbi abekwe nhlangothi zombili. Okokugcina, okukhishiwe okumnyama noma okumhlophe , I-polyvinyl chloride empunga (PVC) noma into engenantuthu ephansi ye-halogen (LSZH, intuthu ephansi, engenayo i-halogen, i-flame retardant). Ikhebula lesikhumba langaphandle linocingo olulengayo oluzisekelayo olumumo we-figure-8.
Ngokuvamile, kukhona i-G657A2 i-optical fiber, i-G657A1 fiber optical, kanye ne-G652D fiber optical. Kunezinhlobo ezimbili zokuqinisa isikhungo, ukuqinisa insimbi kanye nokuqiniswa kwe-FRP okungeyona insimbi. Iziqinisekiso zensimbi zihlanganisa ① intambo yensimbi eyi-phosphated ② intambo yensimbi yethusi ③ intambo yensimbi ekhangayo ④ intambo yensimbi eboshiwe (okuhlanganisa i-phosphate steel wire kanye nentambo yensimbi evulwe ngeglu). Iziqinisi ezingezona ezensimbi zihlanganisa ①GFRP②KFRP③QFRP.
Umgodla wekhebula lesikhumba ngokuvamile umhlophe, umnyama, futhi umpunga. Okumhlophe kuvame ukusetshenziswa endlini, okumnyama kusetshenziswa ngaphandle, ukumelana ne-UV futhi nemvula. Impahla ye-sheath ifaka i-PVC polyvinyl chloride, i-LSZH i-halogen-free-free-free-retardant sheath material. Ngokuvamile, abakhiqizi bahlukanisa izindinganiso ze-LSZH ze-halogen-free-flame retardant zibe izinhlobo ezintathu: i-non-flame retardant, i-flame retardant ngokushisa okukodwa okuqondile, kanye ne-flame retardant kuma-bundle.
Izintambo ezilengayo zekhebula elibonakalayo langaphandle ngokuvamile zingasekela amamitha angu-30-50. I-Phosphating steel wire ithatha u-0.8-1.0MM, izintambo zensimbi ezikhangayo kanye nentambo yensimbi eyirabha.
Izici zekhebula ezimboziwe: i-fiber optical egobayo ekhethekile, ehlinzeka ngomkhawulokudonsa omkhulu futhi ithuthukisa ukusebenza kokudluliselwa kwenethiwekhi; I-FRP emibili ehambisanayo noma iziqinisekiso zensimbi zenza ikhebula le-optical libe nokumelana okuhle kokucindezela futhi livikele i-fiber optical; ikhebula le-optical linesakhiwo esilula, isisindo esilula, nokusebenza okunamandla Okunamandla; umklamo oyingqayizivele we-groove, kulula ukuwucwecwa, ukuxhuma kalula, ukwenza lula ukufakwa nokugcinwa; I-halogen engenantuthu ephansi ye-polyethylene sheath ye-polyethylene engakhiqizi ilangabi noma umgodla we-PVC ongashiyi ilangabi, ukuvikelwa kwemvelo. Ingafaniswa nezinhlobonhlobo zezixhumi ezikusayithi futhi ingaqedwa esizeni.
Ngenxa yokuthambile nokukhanya kwayo, ikhebula lokudonsa lisetshenziswa kabanzi kunethiwekhi yokufinyelela; igama lesayensi lentambo yokudonsa: ikhebula lomthofu elimise okwevemvane yenethiwekhi yokufinyelela; ngoba ukuma kwawo kumise okwevemvane; ibizwa nangokuthi ikhebula le-optical elimise okwemvemvane, ikhebula le-optical Figure 8. Umkhiqizo usetshenziswa ku: ngezintambo zasendlini, umsebenzisi wokugcina usebenzisa ikhebula ngokuqondile; ngekhebula le-optical engenayo lesakhiwo; ngezintambo zangaphakathi zomsebenzisi ku-FTTH.