Fiber optic cabling feem ntau muab faib rau sab hauv tsev thiab sab nraum zoov cabling, thiab kev ceev faj sib txawv vim qhov chaw sib txawv. Kab lus no yuav txheeb xyuas cov kev ceev faj rau sab hauv tsev thiab sab nraum zoov fiber ntau optic cabling.
I. Sab Hauv Tsev Fiber Optic Laying
Txhawm rau tiv thaiv sagging los yog slippage, lub fiber optic cable yuav tsum tau ruaj khov nyob rau saum, hauv qab, thiab nruab nrab ntawm lub cable tais ntawm txhua pem teb. Nylon cable ties los yog steel clips feem ntau yog siv rau fixation zoo. Txhua qhov khoob hauv cov tais cable thiab cov kav dej ntawm txhua lub tsev yuav tsum tau muab khi nrog cov khoom siv fiber ntau optic sealing, thiab hluav taws kub - cov ntaub ntawv tiv thaiv yuav tsum tau ntxiv kom ua tiav cov dej noo thiab tiv thaiv hluav taws.
Thaum tso cov fiber ntau optic cables, qhov ntev tsim nyog yuav tsum tau tshwj tseg raws li cov qauv tsim. Feem ntau, 5m-10m yuav tsum tau tshwj tseg ntawm cov khoom siv kawg, thiab qhov no tuaj yeem txuas ntxiv kom tsim nyog yog tias muaj cov cai tshwj xeeb.
II. Sab nraum zoov Fiber Optic Laying
Qhov no feem ntau muab faib ua duct-raws li fiber ntau optic cable tso thiab ncaj qha faus fiber optic cable tso.
1. Tso cov Optical Cable hauv Conduits
(1) Ntxuav thiab kuaj
Ua ntej tso cov kab hluav taws xob kho qhov muag, cov qhov txuas txuas yuav tsum tau muab ntxuav thiab kuaj xyuas los ntawm ntu. Cov cuab yeej tu tshwj xeeb yuav tsum tau siv los ntxuav, thiab ib lub pas ntsuas kub yuav tsum tau siv los xyuas qhov txuas ntxiv tom qab ntxuav. Sab hauv txoj kab uas hla ntawm cov yas sub-conduit yuav tsum yog 1.5 npaug ntawm txoj kab uas hla ntawm lub optical cable. Thaum tso ob los sis ntau dua sub-conduits nyob rau hauv ib lub cement conduit qhov, qhov sib npaug tag nrho cov kab sab nraud ntawm cov sub-conduits yuav tsum tsawg dua 85% ntawm txoj kab uas hla ntawm lub conduit qhov.
(2) Plastic Sub-conduits
Thaum tso ob los yog ntau tshaj cov yas sub-conduits, yog cov conduits txawv xim, qhov kawg tsis tas yuav tsum tau cim. Yog hais tias cov conduits yog tib xim los yog tsis muaj xim, lawv cov xaus yuav tsum tau cim cais.
(3) Optical Cable rub
Qhov ntev ntawm optical cable rub ntawm ib zaug yuav tsum feem ntau tsawg dua 1000m. Thaum dhau qhov kev ncua deb no, segmented rub lossis ntxiv auxiliary rub ntawm cov haujlwm nruab nrab yuav tsum tau txais yuav los txo qhov kev sib tw kho qhov muag thiab txhim kho kev tsim kho. Txhawm rau tiv thaiv cov kab hluav taws xob kho qhov muag los ntawm kev puas tsuaj thaum lub sij hawm traction, kev taw qhia cov cuab yeej lossis tswb - zoo li cov raj tiv thaiv yuav tsum tau siv thaum lub cable nkag mus rau hauv cov kav dej, ntawm qhov khoov hauv cov kav dej, lossis thaum nws hla lwm yam teeb meem.
(4) Nyiaj pab
Tom qab tso cov kab hluav taws xob kho qhov muag, nws yuav tsum muab tso rau ntawm lub phaj txhawb nqa nyob rau hauv txhua qhov manhole lossis handhole, nrog rau kev tso cai tsim nyog los tiv thaiv lub cable los ntawm overly taut. Thaum splicing yuav tsum tau nyob rau hauv ib tug manhole los yog handhole, qhov nyiaj pub ntev yuav tsum tau raws li qhov tsawg kawg nkaus tus nqi teev nyob rau hauv lub rooj.
(5) Kev kho mob sib koom ua ke
Tsis pub splices nyob rau hauv lub conduit qhov. Thaum tsis muaj splices nyob rau hauv ib tug manhole, lub cable yuav tsum tau khoov thiab muab tso rau ntawm ib tug cable kev them nyiaj yug phaj rau kev ruaj ntseg khi. Nws yuav tsum tsis txhob hla ncaj qha los ntawm qhov manhole, vim qhov no yuav cuam tshuam rau kev tsim kho thiab kev saib xyuas thiab yooj yim ua rau cable puas. Thaum muaj cov splices, cov kav dej hloov tau yooj yim lossis cov yas mos yuav tsum tau siv los tiv thaiv thiab muab tso rau ntawm lub phaj txhawb kom ruaj ntseg.
(6) Sealing thiab Marking
Lub qhov hluav taws xob kawg ntawm cov kav dej uas tau muab tso rau hauv qhov chaw kho qhov muag yuav tsum tau muab kaw kom nruj kom tsis txhob ya raws los yog cov khib nyiab nkag mus rau hauv cov kav dej. Lub optical cable thiab nws cov splices yuav tsum raug txheeb xyuas thiab cim nrog tus lej xov tooj, qauv, thiab cov lus qhia tshwj xeeb. Hauv cov cheeb tsam txias heev, tiv thaiv - ntsuas khov yuav tsum tau ua los tiv thaiv cov kab hluav taws xob kho qhov muag kom khov thiab puas. Yog tias cov kab hluav taws xob kho qhov muag yuav raug puas tsuaj los ntawm kev cuam tshuam, insulating boards tuaj yeem ntsia tau rau hauv lossis ib puag ncig nws rau kev tiv thaiv.
2. Tso cov Direct-Optical Cables faus
(1) Qhov tob tob
Txij li thaum ncaj qha - faus optical cables yog faus ncaj qha rau hauv av, lawv yuav tsum nyob ntawm qhov deb ntawm av. Qhov nro ntawm hauv av pab tiv thaiv kev puas tsuaj rau lub cable, thiab nws tseem tsim nyog los xyuas kom meej tias lub cable tsis khov.
(2) Ntxuav thiab Backfilling ntawm Optical Cable Trench
Hauv qab ntawm lub trench yuav tsum tiaj tus thiab tsis muaj pob zeb, tawv tawv ntawm cov av, thiab lwm yam khib nyiab uas tuaj yeem cuam tshuam qhov kev tso ntawm optical cable. Yog hais tias lub trench yog ua los ntawm pob zeb los yog semi{1}} pob zeb, ib txheej ntawm 10 cm ntawm cov av zoo los yog xuab zeb yuav tsum tau muab tso rau hauv qab thiab leveled. Tom qab muab cov kab hluav taws xob kho qhov muag, 30cm tuab txheej ntawm cov av zoo lossis xuab zeb yuav tsum tau rov qab ua cov txheej txheem tiv thaiv. Nws yog nruj me ntsis txwv tsis pub sib tov gravel, cib, tawv av clods, thiab lwm yam., mus rau hauv lub tiv thaiv av txheej. Cov txheej tiv thaiv yuav tsum maj mam tamped cia manually.
(3) Optical Cable Laying
Thaum tso cov kab hluav taws xob kho qhov muag lossis cov khoom siv hluav taws xob hauv tib lub trench, lawv yuav tsum tau rub thiab muab tso rau ib txhij. Yog hais tias muab tso rau hauv tib lub trench raws li ib tug ncaj qha faus cable, lub cable yuav tsum tau muab tso ua ntej, ua raws li los ntawm optical cable, thiab lawv yuav tsum tau teem ib tug sib npaug zos rau hauv qab ntawm lub trench. Yog tias cov kab hluav taws xob kho qhov muag tau muab tso rau hauv tib lub trench, lawv yuav tsum tau muab cais rau tib lub sijhawm, thiab yuav tsum tsis txhob muab tso rau crosswise los yog sib tshooj hauv qab ntawm lub trench. Cov kab hluav taws xob kho qhov muag yuav tsum tau muab tso rau hauv qab ntawm lub trench lossis ib txwm khoov kom tso tawm qhov kev ntxhov siab ntawm lub cable. Yog hais tias muaj dabtsi yog khoov los yog arching, nws yuav tsum tau leveled, tab sis nws yog kiag li txwv tsis pub siv quab yuam txoj kev xws li stepping rau nws.
(4) Kos npe
Cov cim yuav tsum tau teeb tsa ntawm cov pob qij txha, cov ntsiab lus tig, qhov ntev tshwj xeeb, lossis kev sib tshuam nrog lwm cov kav dej ntawm cov kab hluav taws xob ncaj qha faus rau yav tom ntej kev tu thiab kho. Cov cim tuaj yeem yog cov cim cim lossis cov qauv ruaj khov nyob ze ntawm fiber ntau optic cable. Qhov kev ncua deb ntawm ib feem ntawm cov qauv thiab cov fiber ntau optic cable tuaj yeem ntsuas thiab kaw rau yav tom ntej siv.