Hauv kev tsim cov xov hlau fiber ntau (OFC), kev xaiv cov khoom siv raw yog qhov tseem ceeb heev. Cov chaw ua haujlwm sib txawv - xws li txias heev, kub siab, av noo, kev teeb tsa sab nraum zoov, khoov tas li, lossis txav mus los ntau zaus - yuam kom muaj ntau yam kev cai rau cov ntaub ntawv xov hlau fiber ntau. Ntawm no, peb sau luv luv ntau cov ntaub ntawv tseem ceeb uas siv ntau hauv kev lag luam, tshuaj xyuas lawv cov yam ntxwv kev ua tau zoo thiab cov ntawv thov siv tau los pab txhim kho koj txoj kev tsim cov xov hlau fiber ntau thiab kev xaiv cov ntaub ntawv.
1. PBT (Polybutylene Terephthalate) - Cov Khoom Siv Feem Ntau Rau Cov Hlab Xoob
PBTyog cov khoom siv dav tshaj plaws rau cov raj xoob hauv cov xov hluav taws xob fiber ntau. Cov yas cable ib txwm muaj feem yuav tawg yooj yim thaum kub qis thiab mos thaum kub siab. PBT hloov kho, piv txwv li nrog cov saw hlau yooj ywm, txhim kho qhov tsis kam rau qhov kub qis thiab tuaj yeem ua tau raws li qhov yuav tsum tau ua kom txog -40 ° C. Tsis tas li ntawd, PBT muaj kev ruaj khov zoo heev thiab kev ruaj khov ntawm qhov kub siab, ua kom muaj kev tiv thaiv zoo rau cov fibers hauv qab kev ntxhov siab thermal. Nws qhov kev ua tau zoo sib npaug, tus nqi tsim nyog, thiab kev hloov pauv ua rau nws yog qhov kev xaiv ib txwm rau cov xov hluav taws xob sib txuas lus sab nraum zoov, cov xov hluav taws xob ntev, thiab cov qauv cable ADSS.
2. PP (Polypropylene) — Kev Ruaj Khov Zoo Tshaj Plaws thiab Kev Tiv Thaiv Hydrolysis
PP tau txais kev saib xyuas hauv cov ntaub ntawv cable optical vim nws qhov zoo heev hauv qhov kub qis, tiv thaiv kev tawg hauv qhov txias heev. Nws qhov kev tiv thaiv hydrolysis kuj zoo dua li PBT, ua rau nws haum rau cov chaw noo noo lossis dej ntau. Txawm li cas los xij, PP muaj qhov modulus thiab rigidity qis dua piv rau PBT, yog li nws siv yuav tsum xav txog cov qauv cable tshwj xeeb. Piv txwv li, cov cables sib dua, cov cables sab hauv tsev-sab nraum zoov, lossis cov qauv raj xoob uas xav tau kev ywj pheej ntau dua yuav xaiv PP ua lwm txoj hauv kev.
3. LSZH (Low Smoke Zero Halogen) — Cov Khoom Siv Cable Jacket Uas Zoo Rau Ib Puag Ncig
LSZHyog cov khoom siv hluav taws xob uas siv ntau tshaj plaws thiab tsis ua rau ib puag ncig puas tsuaj. Cov qauv LSZH zoo, ua tiav los ntawm cov txheej txheem polymer tshwj xeeb thiab cov thev naus laus zis filler, tuaj yeem ua tau raws li qhov yuav tsum tau ua rau kub qis -40 ° C thiab siv tau ntev ntawm 85 ° C. Thaum muaj hluav taws kub, LSZH tso pa luam yeeb tsawg thiab tsis muaj cov pa roj halogen, ua rau muaj kev nyab xeeb zoo rau cov xov hlau sab hauv tsev, cov xov hlau hauv chaw khaws ntaub ntawv, thiab cov xov hlau rau pej xeem. Nws kuj muaj kev tiv thaiv zoo heev rau kev tawg ntawm ib puag ncig thiab kev xeb tshuaj lom neeg, ua rau nws yog qhov kev xaiv ntau yam rau cov xov hlau sab hauv tsev thiab sab nraum zoov.
4. TPU (Thermoplastic Polyurethane) — Tus "Vaj Ntxwv" ntawm Kev Yoog Tau Thaum Kub Qis thiab Kev Tiv Thaiv Kev Sib Txhuam
TPU muaj npe nrov rau nws qhov kev ywj pheej thiab kev tawv nyob rau hauv qhov kub qis heev. Tsis zoo li PVC, TPU tseem yooj ywm heev thiab tsis tawg. Nws kuj muaj qhov zoo heev ntawm kev sib txhuam, roj, thiab kev tsim kua muag, ua rau nws zoo tagnrho rau kev txav cov cables, suav nrog cov cables rub saw, cov cables tsheb, cov cables mining, cov cables robotic, thiab cov ntawv thov automation hauv kev lag luam. Nco ntsoov tias TPU qhov kub siab thiab kev tiv thaiv hydrolysis nyob ntawm qib tshwj xeeb, yog li kev xaiv cov qauv zoo yog qhov tseem ceeb.
5. PVC (Polyvinyl Chloride) — Kev Xaiv Lub Tsho Cable Uas Pheej Yig Nrog Cov Kev Txwv Kub Qis
PVC tseem siv rau qee cov xov hluav taws xob vim nws pheej yig thiab yooj yim ua. Txawm li cas los xij, tus qauv PVC tawv thiab tej zaum yuav tawg hauv qab -10 ° C, ua rau nws tsis haum rau cov xwm txheej txias heev. Qhov kub qis lossis PVC tiv taus txias tuaj yeem txo qhov kub hloov iav los ntawm cov yas, tab sis qhov no yuav ua rau lub zog kho tshuab thiab kev tiv taus kev laus. Yog li ntawd PVC zoo dua rau cov haujlwm uas muaj kev cuam tshuam nrog tus nqi hauv cov chaw ruaj khov, xws li kev teeb tsa sab hauv tsev lossis kev teeb tsa cable ib ntus.
6. TPV (Thermoplastic Vulcanizate) — Kev Sib Xyaws Ua Ke ntawm Roj Hmab Elasticity thiab Yas Processability
TPV muab qhov elasticity ntawm roj hmab nrog rau qhov ua tau zoo ntawm yas. Nws muaj kev tiv taus kub siab thiab qis zoo heev, nrog rau kev tiv taus huab cua thiab ozone zoo heev. TPV qhov kev ywj pheej thiab kev ruaj khov ua rau nws haum rau cov xov hluav taws xob sab nraum zoov, cov xov hluav taws xob hauv tsheb, thiab cov xov hluav taws xob ywj pheej. Ua ib yam khoom siv, TPV sib npaug cov yam ntxwv ntawm TPU thiab PVC, muab kev ywj pheej zoo heev thiab kev tiv taus ib puag ncig.
7. XLPE (Crosslinked Polyethylene) — Cov Khoom Siv Rwb Thaiv Kub Siab rau Optical thiab Power Cables
XLPE, los ntawm kev sib txuas ua ke, ua rau muaj kev tiv taus cua sov thiab tuaj yeem ua haujlwm tas li saum 90 ° C. Nws kuj muab lub zog kho tshuab zoo dua thiab kev tiv taus kev ntxhov siab. Txawm hais tias XLPE feem ntau siv rau kev rwb thaiv tsev fais fab cable (piv txwv li, 1kV–35kV), nws qee zaum siv rau hauv cov cables optical rau kev txhawb nqa lossis kev siv kub siab. Nws cov khoom thermal thiab mechanical ua rau nws haum rau cov cables optical tshwj xeeb hauv cov chaw ib puag ncig hnyav.
Xaiv Cov Khoom Siv Optical Cable Jacket - Cov Xwm Txheej Thov Yog Qhov Tseem Ceeb
Kev xaiv cov ntaub ntawv cable optical zoo tshaj plaws yuav tsum tau ntau dua li kev tshuaj xyuas cov ntaub ntawv kev siv tshuab; nws kuj yuav tsum xav txog cov xwm txheej siv tiag tiag:
Kev Teeb Tsa Ruaj Kho (sab nraum zoov, duct, aerial): LSZH, TPV, XLPE
Cov Ntawv Thov Txav Mus Los (cov saw hlau rub, cov neeg hlau, cov tsheb, kev khawb av): TPU
Txias heev (-40°C lossis qis dua): PBT hloov kho, PP, TPU
Kev Siv Hluav Taws Xob Sab Hauv Tsev, Siv Raws Li Tus Qauv, Cov Haujlwm Uas Muaj Kev Xav Tau Tus Nqi: PVC (tsuas yog pom zoo rau cov xwm txheej tshwj xeeb)
Tsis muaj ib txoj kev daws teeb meem uas "ib qho loj-haum-txhua tus" rau cov ntaub ntawv cable optical. Kev xaiv yuav tsum yog raws li kev ntsuam xyuas tag nrho ntawm cov qauv cable, cov xwm txheej kev teeb tsa, cov peev nyiaj, thiab kev ntseeg tau mus sij hawm ntev.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-20-2025