Taw qhia
Fiber optic cables tuaj nyob rau hauv ntau hom, txhua tus tsim los ua kom tau raws li cov kev cai ntawm kev siv sib txawv. Cov cables no tuaj yeem hloov kho nrog cov yam ntxwv sib txawv kom haum rau lawv qhov kev npaj siv, txawm tias nws yog rau armored, aerial, lossis sab hauv tsev faib khoom. Cov neeg tsim khoom yuav tsum ua tib zoo xav txog qhov tso ntawm cov cables kom tau raws li cov kev xav tau tshwj xeeb ntawm txhua qhov chaw.
Hauv kev teeb tsa hauv tsev, fiber ntau cables feem ntau dhau los ntawm Riser lossis Plenum thaj chaw, txhua tus muaj nws tus kheej cov cai rau kev xaiv cable. Nws yog ib qho tseem ceeb uas yuav tau siv cov cables nrog cov kev ntsuas hluav taws uas tsim nyog los tiv thaiv kev tso pa tawm ntawm cov pa phem thiab cov pa luam yeeb ntau dhau thaum muaj hluav taws kub. Ua raws li cov cai tswj kev nyab xeeb ua kom muaj kev noj qab haus huv ntawm txhua tus hauv lub tsev.
Kev nkag siab txog qhov tseem ceeb ntawm kev ntsuas hluav taws thiab ua raws li cov txheej txheem tsim nyog yog qhov tseem ceeb rau kev tswj xyuas qhov zoo thiab kev nyab xeeb ntawm fiber ntau optic network. Los ntawm kev ua kom ntseeg tau tias kev siv cov cables nrog qhov tseeb qhov hluav taws kub, kev ncaj ncees thiab kev ntseeg siab ntawm lub network tuaj yeem khaws cia.
Vim li cas lub tsho sab nrauv ntawm Cable tseem ceeb?
Fiber optic cables feem ntau muaj fiber ntau cores, txheej txheej, cov tswv cuab muaj zog, thiab cov tsho sab nrauv. Lub tsho sab nrauv ua haujlwm raws li cov txheej txheem tiv thaiv rau lub cable, muab kev tiv thaiv hluav taws thiab ya raws.
Kev ua tau zoo ntawm lub tsho sab nrauv yog qhov tseem ceeb thaum muaj hluav taws kub hauv cov ntaub ntawv chaw. Cov tsho sab nrauv ntawm fiber ntau optic cables tuaj nyob rau hauv cov khoom sib txawv, txhua tus nrog nws cov yam ntxwv ntawm lub cev (qhov sib txawv ntawm qhov hluav taws kub) thiab cov xwm txheej tsim nyog. Cov khoom siv sab nrauv xws li PE, PVC, PVDF, LSZH, Plenum, thiab Riser. Cov lus hauv qab no qhia txog kev ua haujlwm thiab qhov chaw siv tau rau cov ntaub ntawv no.
| Khoom siv | Qhov zoo |
| PE (Polyethylene) |
Nws muaj qhov kub thiab txias tsis kam, zoo tshuaj stability, tsis kam mus rau feem ntau acid thiab alkali corrosion, puas kuj, thiab hluav taws xob rwb thaiv tsev siab. Yog li ntawd, PE feem ntau yog siv los ua cov khoom siv sab nrauv rau sab nraum zoov cables. |
| PVC (Polyvinyl Chloride) |
Nws muaj cov khoom siv kho tshuab zoo, muaj hluav taws xob rwb thaiv tsev siab, yoog raws, lub zog, thiab nplaim taws ua haujlwm zoo. Txawm li cas los xij, nws muaj kev ruaj ntseg tsis zoo rau lub teeb thiab cua sov, ua rau nws tsim nyog dua li cov khoom siv sab nrauv rau sab hauv fiber ntau optic cables. |
| PVDF (Polyvinylidene Fluoride) |
Nws muaj ntau yam khoom zoo xws li elasticity, tsis muaj qhov hnyav, tsis muaj thermal conductivity, tshuaj lom neeg tsis kam, thiab kub tsis kam. Nws kuj muaj cov nplaim hluav taws zoo dua li PE thiab ua rau yuav luag tsis muaj pa taws txawm tias muaj hluav taws kub. Yog li, cov khoom siv PVDF tuaj yeem siv rau lub tsho sab nrauv ntawm cov pob txha tseem ceeb fiber ntau optic cables. |
| LSZH (Low Smoke Zero Halogen) |
Nws nta cov pa luam yeeb tsawg, tsis muaj tshuaj lom, tsis muaj corrosiveness, thiab nplaim hluav taws kub retardancy. LSZH yog cov khoom siv nyab xeeb thiab ib puag ncig zoo, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev teeb tsa sab hauv tsev thiab sab nraum zoov. Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias fiber ntau optic cables nrog LSZH cov khoom feem ntau kim dua. |
| Plenum | Nws yog ib qho tseem ceeb ntawm kev tsim OFNP-rated fiber optic cables. Nws muaj cov nplaim hluav taws kub retardancy thiab tsis tsim cov pa phem lossis corrosive gases txawm tias kub heev. Fiber optic cables nrog cov khoom siv Plenum yog qhov kev xaiv zoo tshaj plaws rau kev xaim hauv qhov cua tshuab lossis cua tuav cov tshuab nrog huab cua zoo. |
| Riser |
Raws li ib qho ntawm cov khoom tseem ceeb rau kev tsim OFNR-rated fiber optic cables, Riser muaj cov nplaim hluav taws tsis muaj zog piv rau cov khoom siv Plenum. Nws tseem yog dawb los ntawm cov pa roj carbon monoxide thiab corrosive gases. Yog li ntawd, fiber ntau optic cables nrog Riser cov ntaub ntawv feem ntau yog siv nyob rau hauv ntsug risers thiab kab rov tav cables nyob rau hauv lub tsev. |
Dab tsi yog Qhov Sib Txawv Hluav Taws Xob rau Fiber Optic Cables?
Hauv NEC (National Electrical Code) cov qauv, fiber ntau optic cables feem ntau muab faib ua OFNP/OFCP, OFNR/OFCR, OFNG/OFCG, thiab OFN/OFC kev ntsuas hluav taws.
OFNP/OFCP yog qhov ntsuas hluav taws kub siab tshaj plaws hauv NEC cov qauv (plenum-qib). Yog hais tias ib tug yuam kev airflow los ntawm ib tug kiv cua yog qhia nyob rau hauv ib pob ntawm plenum-qib fiber optic cables, cov nplaim taws ntawm cov cables yuav self-extinguishes nyob rau hauv 5 meters thiab tsis muaj tshuaj lom los yog corrosive gases yuav generated.
OFNR/OFCR yog qhov ntsuas ntsug (qib riser) thiab nyob qib thib ob. Thaum lub zog quab yuam los ntawm tus kiv cua yog qhia ntawm ib pob ntawm riser-qib fiber ntau optic cables, cov nplaim taws yuav tua tus kheej li ntawm 5 meters, tab sis tsis muaj pa luam yeeb lossis toxicity.
OFNG/OFCG thiab OFN/OFC yog qib kev lag luam thiab cov hom phiaj-qib, feem. Fiber optic cables ua tau raws li cov qauv no feem ntau siv nyob rau hauv ib puag ncig uas yuav tsum tau muaj hluav taws kub tsawg.
Kev ntsuas hluav taws dab tsi tuaj yeem ua tiav nrog cov khoom sib txawv ntawm lub tsho?
Txawm hais tias qhov ntsuas hluav taws kub ntawm fiber ntau optic cables tsis ncaj qha txiav txim los ntawm cov khoom siv lub tsho sab nrauv, feem ntau, yog Plenum siv los ua cov khoom siv sab nrauv, fiber ntau optic cable tuaj yeem ua tiav OFNP qhov hluav taws kub ntsuas thaum NEC nplaim hluav taws retardant kuaj. Yog tias PVC lossis Riser siv los ua cov khoom siv sab nrauv, cov fiber ntau optic cable tuaj yeem ua tiav OFNR qhov ntsuas hluav taws. Yog tias LSZH siv los ua cov khoom siv lub tsho sab nrauv, fiber ntau optic cable tuaj yeem ua tiav OFN qhov ntsuas hluav taws.
Hauv cov ntsiab lus, fiber ntau optic cables nrog cov tsho sab nrauv ua los ntawm Plenum, PVC / Riser, lossis LSZH cov ntaub ntawv tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm hluav taws kub ntawm cov ntaub ntawv chaw.
Yuav ua li cas xaiv cov khoom sib txawv ntawm lub tsho sab nrauv raws li qhov chaw teeb tsa?
- Cov khoom siv Plenum yog tsim rau cov kab rov tav kab rov tav thiab thaj chaw nyob hauv ib puag ncig xws li cov kav dej thiab cov tshuab ua cua. Nyob rau hauv cov cheeb tsam no, qhov twg huab cua ncig yog tam sim no thiab hluav taws kub tsis yooj yim los tswj, siv OFNP-rated nplaim-retardant fiber optic cables yog qhov kev xaiv zoo tshaj.
- Cov khoom siv Riser / PVC yog tsim rau cov kab hauv qab ntsug, muab kev sib txuas ntawm cov khoom siv nkag lossis cov chav computer thiab cov chaw sib txuas lus sib txawv hauv pem teb. Qhov tshwm sim ntawm qhov hluav taws kub loj yog tsawg nyob rau hauv cov cheeb tsam no, thiab ua tiav OFNR qhov ntsuas hluav taws txaus txaus.
- Cov khoom siv LSZH feem ntau yog siv rau hauv cov hom phiaj dav dav. Txawm tias muaj hluav taws kub, LSZH cables tso cov pa taws uas tsis muaj tshuaj lom, yog li tsis txhob muaj kev puas tsuaj rau cov neeg ua haujlwm cawm.
Xaus
Nws yog tsim nyog sau cia tias lub tsho sab nrauv ntawm fiber ntau optic cables tsuas yog ib qho ntawm kev tiv thaiv hluav taws thiab kev tswj hwm. Yuav kom txo tau qhov kev pheej hmoo thiab kev puas tsuaj los ntawm hluav taws kub, ua tib zoo npaj cov xwm txheej cabling thiab kev siv cov kev tiv thaiv hluav taws yog qhov tseem ceeb. Tsuas yog los ntawm kev txiav txim siab txhua yam kev nkag siab tuaj yeem ua kom cov ntaub ntawv chaw ruaj ntseg.