Xaiv cov khoom siv sab nraud rau lub fiber optic cable yuav tsum xav txog ntau yam ntsig txog cable daim ntawv thov, ib puag ncig, thiab kev ua haujlwm.Nov yog qee qhov kev txiav txim siab tseem ceeb los pab koj xaiv cov khoom siv sab nrauv tsim nyog rau fiber ntau optic cables:
Environmental Conditions: Txheeb xyuas cov xwm txheej uas yuav raug teeb tsa.Xav txog yam xws li qhov kub thiab txias, raug dej noo, tshuaj lom neeg, UV teeb, puas, thiab lwm yam kev phom sij.
Mechanical Protection: Txiav txim siab theem ntawm kev tiv thaiv txhua yam yuav tsum tau ua.Yog hais tias lub cable yuav raug ntsia rau hauv ib puag ncig rugged los yog thaj chaw uas muaj kev puas tsuaj rau lub cev, koj yuav xav tau cov ntaub qhwv uas muaj kev tiv thaiv zoo rau kev puas tsuaj thiab kev cuam tshuam.
Hluav taws kub thiab nplaim taws Resistance:Qee daim ntawv thov, tshwj xeeb tshaj yog nyob rau hauv kev lag luam lossis qhov chaw muaj kev pheej hmoo siab, yuav xav tau cov cables nrog cov nplaim hluav taws kub los yog hluav taws kub tiv thaiv sab nraud kom ua raws li cov cai tswj kev nyab xeeb.
Flexibility thiab Khoov Radius:Rau kev teeb tsa qhov twg lub cable yuav xav tau khoov lossis flex, xaiv cov khoom siv sheath uas muaj kev hloov pauv yam tsis muaj kev cuam tshuam cov cable kev ua haujlwm yog qhov tseem ceeb.
Chemical Resistance:Ntsuam xyuas seb lub cable puas yuav raug rau cov tshuaj lom neeg los yog tshuaj corrosive.Xaiv cov ntaub ntawv sheath uas tuaj yeem tiv taus cov tshuaj no kom muaj kev ruaj ntseg cable.
UV Resistance:Yog hais tias lub cable yuav raug tshav ntuj los yog sab nraum zoov tej yam kev mob, UV-resistant cov ntaub ntawv yuav tiv thaiv kom tsis txhob degradation nyob rau lub sij hawm vim lub sij hawm ntev raug rau ultraviolet rays.
Kev txiav txim siab nqi:Sib npaug cov kev xav tau ntawm kev ua haujlwm nrog cov nqi txwv.Qee cov ntaub ntawv tshwj xeeb yuav muab cov khoom zoo tshaj plaws tab sis tuaj ntawm tus nqi siab dua.
Kev Ua Raws Cai thiab Cov Qauv:Xyuas kom meej tias cov khoom siv sheath tau xaiv ua raws li cov qauv kev lag luam thiab cov kev cai rau daim ntawv thov.
Cov ntaub ntawv uas siv rau sab nrauv sheaths nyob rau hauv fiber optic cables muaj xws li: Yuav ua li cas xaiv fiber optic cable txheej sheath khoom?
1 pvc
2 PE
3 LOJ
4 AW
5 Anti-Rodent
6 Anti-Flame
PVC
PVC yog siv dav siv fiber ntau optic cable sab nrauv sheath khoom.Nws muaj kev ua tau zoo, cov tshuaj tiv thaiv zoo thiab huab cua tsis kam, tus nqi qis, tsis tshua muaj nplaim taws, thiab tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm lub sijhawm.Txawm li cas los xij, PVC sheathed optical cable yuav tsim cov pa taws hnyav thaum hlawv, uas tsis yog ib puag ncig zoo.
PE
Polyethylene sheath cov ntaub ntawv tsis muaj ntxhiab, tsis muaj tshuaj lom, zoo li siv quav ciab.Nws muaj qhov kub thiab txias tsis kam (qhov kub qis tshaj tuaj yeem ncav cuag -100 ~ -70 ° C), tshuaj lom neeg ruaj khov, thiab tuaj yeem tiv taus cov kua qaub thiab alkalis feem ntau (tsis tiv taus oxidation).Nws yog insoluble nyob rau hauv cov kuab tshuaj nyob rau hauv lub chav tsev kub, tsis muaj dej nqus thiab zoo heev hluav taws xob rwb thaiv tsev.
Vim tias qhov ceev qis, huab cua zoo permeability, cov rwb ua tau zoo heev thiab UV tiv thaiv PE fiber ntau cable, feem ntau nws siv nyob rau sab nraum zoov ib puag ncig.Raws li qhov ceev ntawm PE fiber cable sab nrauv sheath, kuj tseem muaj MDPE (nruab nrab ntom) thiab HDPE (siab ceev).
LSZH
LSZH (tsis tshua muaj pa luam yeeb xoom halogen) yog cov khoom siv hluav taws xob hluav taws xob uas muaj cov khoom siv tsis zoo (aluminium hydroxide, magnesium hydroxide).LSZH sheathed fiber optic cable tsis tsuas yog dilute lub concentration ntawm combustible cov ntaub ntawv, tab sis kuj nqus cov cua kub generated los ntawm combustion, thiab nyob rau tib lub sij hawm tsim ib tug tsis-combustible oxygen barrier.
LSZH fiber ntau optic cablemuaj cov nplaim hluav taws zoo heev, cov pa luam yeeb me me thaum lub sij hawm combustion, tsis muaj cov pa luam yeeb dub, tsis muaj roj corrosive, lub zog tensile zoo, roj tsis kam thiab softness, zoo heev siab tsis kam, haum rau ib puag ncig nrog nplaim retardant yuav tsum tau thiab tiv taus voltage.Qhov tsis zoo yog tias LSZH sheath yooj yim tawg.
AT
Sab nrauv ntawm cov khoom siv kho qhov muag ntawm AT tuaj yeem tau txais los ntawm kev ntxiv cov khoom ntxiv rau PE.Hom sheath no muaj kev ua tau zoo los tiv thaiv kev ua haujlwm, yog li cov khoom siv kho qhov muag feem ntau siv nyob rau hauv qhov chaw muaj hluav taws xob hluav taws xob siab xav tau cov ntaub ntawv ntawm AT.
Anti-Rodent
Lwm yamoptical kabsheathing cov ntaub ntawv yog cov khoom siv los tiv thaiv nas, uas yog siv rau cov kab hluav taws xob kho qhov muag nteg nyob rau hauv tunnels thiab underground tej yaam num.Lub tshuab tau muab faib ua tshuaj tiv thaiv thiab kev tiv thaiv lub cev.Ntawm lawv, kev tiv thaiv lub cev yog ib txoj hauv kev zoo dua, thiab cov xov paj aramid thiab cov khoom siv hlau tuaj yeem siv los tiv thaiv nas tom.
Anti-Flame
Thaum siv cov fiber ntau optic hauv cov mines lossis lwm yam kev nyab xeeb ua ntej ib puag ncig, qhov zoo ntawm cov nplaim hluav taws xob ntawm fiber ntau optic cable yog qhov tseem ceeb.Flame-retardant optical cable yog cov nplaim hluav taws kub-retardant polyethylene sheath khoom siv cov khoom siv kho qhov muag zoo tib yam polyethylene sheath, yog li cov khoom siv kho qhov muag muaj cov nplaim hluav taws kub.