In the ever - evolving landscape of fiber - optic communication, indoor butterfly optical cables play a crucial role, especially in the Fiber - To - The - Home (FTTH) network. Lawv cov qauv tshwj xeeb thiab cov yam ntxwv ua rau lawv xaiv qhov zoo tshaj plaws rau cov ntawv thov sab hauv tsev.
Cov yam ntxwv ntawm Sab Hauv Tsev Cov Npauj Npaim Optical Cables
Nyob sab hauv tsev npauj npaim kho qhov muag cable, tseem hu ua clesth poob cable, muaj npe rau lawv tus ntoo khaub lig zoo li tus npauj npaim. Cov cables no yog me me hauv txoj kab uas hla, uas ua rau lawv yooj yim rau nruab rau hauv cov chaw sib nrug hauv cov tuam tsev. Lawv yog lub teeb yuag, txo cov khoom thauj khoom thaum teeb tsa. Lawv tus nqi - kev ua tau zoo yog lwm qhov zoo dua, ua rau lawv xaiv cov kev xaiv nrov rau kev xa tawm thoob plaws.
Cov qoob loo yog tsim los ua kom yooj yooj yim thiab khoov - tsis paub txog. Cov cuab yeej no yog qhov tseem ceeb uas lawv feem ntau yuav tsum tau nyob ib ncig ntawm cov ces kaum thiab los ntawm cov kev sib tw nqaim hauv chaw nyob sab hauv tsev. Lawv kuj muaj tsawg - haus luam yeeb tsawg - halogen (LSZH) sheath, uas tsis yog nplaim hluav taws thiab cov tshuaj lom tsawg heev thaum muaj hluav taws.
Cov txheej txheem ntau lawm
Xaiv Fiber:Cov txheej txheem ntau lawm pib nrog kev xaiv ceevfaj ntawm kho qhov muag. Rau sab hauv nroog npauj npaim cables, khoov - insensitive ib - hom fibers yog feem ntau siv. Cov fibers, xws li cov uas ua raws li ITU - T G657 tus qauv, muab cov kev ua kom zoo rau cov macro - dabtsi yog khoov poob. Lawv tuaj yeem muab tau los ntawm kev txhim khu kev qha fortorters fiber ntau qauv yog nyob rau hauv qhov chaw kom ntseeg tau tias cov fibers raws li qhov xav tau cov kev kawm tshwj xeeb.
Lub Zog Ntxiv Los Ntxiv:Ob txoj kev sib tw ua kom zoo nkauj fiber - furposed plastics (frp) lossis qee zaum cov xov hlau me me ntxiv rau ntawm ob sab ntawm lub ntsuas hluav taws xob muaj roj. Tus frp ua haujlwm ua ib tug tswv yim ntxiv lawm, muab lub cable nrog lub zog tensile lub zog. Cov kauj ruam no yog qhov tseem ceeb heev thaum nws ua kom txhua tus tuaj yeem tiv thaiv lub zog rub tawm yam tsis muaj kev ua kom lub cev kho qhov muag sab hauv. Tus frp yog ua tib zoo muab tso rau hauv kev teeb tsa parallel los tswj cov cable cov duab thiab cov kws kho tshuab.
Sheathing:Cov kauj ruam tom ntej yog sheathing. Cov khoom siv dub lossis dawb lszh yog extruded nyob ib ncig ntawm cov fiber ntau thiab cov zog dag zog. Qhov txheej txheem Extrusion yog nqa tawm siv cov Machinery nrog cov qauv - tswj tsis tau. Qhov kub thiab txias, thiab nrawm ntawm extrusion yog ua tib zoo saib xyuas kom paub meej tias ib yam tsis zoo thiab du sheath. LSZH sheath tsis tsuas yog muab kev tiv thaiv tawm tsam kev puas tsuaj rau lub cev tab sis kuj ua tau raws li cov nplaim taws - retardant xav tau kev siv sab hauv tsev.
Kev Tswj Xyuas Zoo:Thoob plaws hauv cov txheej txheem ntau lawm, kev tswj hwm nruj heev yog ua. Optical fiber ntau attenenuation yog ntsuas ntawm cov sijhawm sib tham tsis tu ncua kom ntseeg tau tias nws nyob hauv cov kev txwv tshwj xeeb. Cov khoom siv tshuab ntawm cov cable, xws li lub zog tensile thiab kev ua haujlwm tsis zoo, tseem tau kuaj. Cov qauv raug coj thiab raug rau ntau txoj kev kuaj ib puag ncig, suav nrog ntsuas kub thiab noo kev caij tsheb kauj vab thiab xyuas kom cov cable ntev - kev ntseeg tau.