Sab hauv kho qhov muag cables feem ntau yog siv nyob rau hauv cov txheej txheem cabling. Vim muaj ntau yam xws li lub tsev ib puag ncig thiab kev teeb tsa, kev tsim cov kab hluav taws xob sab hauv tsev tau ua ntau dua. Cov ntaub ntawv siv rau optical fibers thiab cables muaj ntau haiv neeg, nrog rau cov khoom siv kho qhov muag thiab kho qhov muag tau hais txog qhov sib txawv. Cov kab hluav taws xob sab hauv tsev feem ntau suav nrog ib leeg-tub ntxhais cov kab hluav taws xob, cov kab tsis txuas, thiab cov kab txuas txuas. Niaj hnub no, IB LUB NTIAJ TEB yuav tsom mus rau ib qho ntawm ntau hom kev kho qhov muag cables: GJFJV.
GJFJV Sab Hauv Tsev Optical Cable
1. Kev sib xyaw ua ke
Kev lag luam-tus qauv qauv rau sab hauv tsev kho qhov muag cables yog GJFJV.
GJ - Kev sib txuas lus hauv tsev kho qhov muag cable
F - Non-metallic reinforcing tivthaiv
J - Tight-buffered optical fiber qauv
V - Polyvinyl chloride (PVC) sheath
Lus Cim: Rau cov khoom siv lub npe hu ua, "H" sawv cev rau cov pa luam yeeb tsis muaj halogen, thiab "U" sawv cev rau polyurethane sheath.
2. Sab hauv Optical Cable Hla-Section Diagram
Cov khoom sib xyaw thiab cov yam ntxwv
1. Coated Optical Fiber (Composed ntawm optical fiber thiab lwm txheej txheej)
Cov fiber ntau optical yog ua los ntawm cov khoom siv silica, thiab tus qauv cladding txoj kab uas hla yog 125 μm. Cov tub ntxhais txoj kab uas hla rau ib hom (B1.3) yog 8.6-9.5 μm, thiab rau ntau hom (OM1 A1b) yog 62.5 μm. Cov tub ntxhais txoj kab uas hla rau ntau hom OM2 (A1a.1), OM3 (A1a.2), OM4 (A1a.3), thiab OM5 (A1a.4) yog 50 μm.
Thaum lub sij hawm kev kos duab ntawm cov iav kho qhov muag fiber ntau, ib txheej ntawm elastic txheej yog siv los ntawm ultraviolet lub teeb los tiv thaiv kev paug los ntawm plua plav. Cov txheej no yog ua los ntawm cov ntaub ntawv zoo li acrylate, silicone roj hmab, thiab nylon.
Lub luag haujlwm ntawm cov txheej yog los tiv thaiv qhov muag fiber ntau los ntawm cov dej noo, roj, thiab cov khoom siv kho qhov muag, thiab txhim kho microbend kev ua tau zoo ntawm cov fiber ntau, yog li txo qis kev khoov ntxiv.
Cov txheej tuaj yeem pleev xim rau thaum siv, thiab cov xim yuav tsum ua raws li GB / T 6995.2 (Xiav, Txiv kab ntxwv, Ntsuab, Xim av, Grey, Dawb, Liab, Dub, Daj, Ntshav, Paj yeeb, lossis Cyan Ntsuab). Nws tuaj yeem nyob tsis muaj xim raws li ntuj tsim.
2. Tight Buffer Txheej
Khoom siv: Environmentally friendly, nplaim-retardant polyvinyl chloride (PVC),Tsis tshua muaj pa halogen-dawb (LSZH) polyolefin, OFNR-rated nplaim-retardant cable, OFNP-rated nplaim-retardant cable.
Muaj nuj nqi: Nws ntxiv tiv thaiv cov fibers optical, ua kom lawv yoog raws ntau yam kev teeb tsa. Nws muaj kev tiv thaiv kom nruj, compression, thiab dabtsi yog khoov, thiab tseem muab dej thiab noo noo tiv thaiv.
Siv: Cov txheej tsis nruj nruj tuaj yeem ua xim xim rau kev txheeb xyuas, nrog cov xim xim raws li GB / T 6995.2 tus qauv. Rau kev txheeb xyuas tsis yog tus qauv, cov nplhaib xim lossis cov dots yuav raug siv.
3. Txhim kho cov Cheebtsam
Khoom siv:Aramid xov paj, tshwj xeeb tshaj yog poly (p-phenylene terephthalamide), ib hom tshiab ntawm high-tech hluavtaws fiber. Nws muaj cov khoom zoo xws li ultra-siab zog, siab modulus, kub tsis kam, acid thiab alkali tsis kam, hnav, rwb thaiv tsev, kev laus ua haujlwm, thiab kev pab lub neej ntev. Ntawm qhov kub siab dua, nws tswj kev ruaj khov, nrog qhov qis qis qis, qis qis qis, thiab qhov kub hloov pauv iav siab. Nws kuj muaj kev tiv thaiv corrosion siab thiab tsis yog-conductivity, ua rau nws yog ib qho khoom siv zoo tshaj plaws rau cov khoom siv kho qhov muag.
Muaj nuj nqi: Aramid yarn yog sib npaug spiraled nyob ib ncig ntawm los yog muab tso rau longitudinally nyob rau hauv lub cable sheath los muab kev txhawb nqa, txhim khu lub cable lub tensile thiab siab tsis kam, mechanical zog, thermal stability, thiab tshuaj stability.
Cov yam ntxwv no ua kom cov kab hluav taws xob sib kis tau zoo thiab kev pabcuam lub neej. Aramid kuj tseem siv tau rau hauv kev tsim cov tsho tiv thaiv mos txwv thiab cov hlua khi vim nws lub zog tensile zoo heev.
4. Sab nrauv
Cov ntaub ntawv: Cov pa luam yeeb tsawg halogen-dawb nplaim hluav taws-retardant polyolefin (LSZH), polyvinyl chloride (PVC), lossis OFNR / OFNP-rated nplaim hluav taws xob cables. Lwm cov ntaub ntawv sheath tuaj yeem siv raws li cov neeg siv khoom xav tau. Cov pa luam yeeb tsawg halogen-dawb polyolefin yuav tsum ua tau raws li YD / T1113 tus qauv; polyvinyl chloride yuav tsum ua raws li GB / T8815-2008 rau cov ntaub ntawv mos PVC; thermoplastic polyurethane yuav tsum ua tau raws li YD / T3431-2018 cov qauv rau cov thermoplastic polyurethane elastomers.
Muaj nuj nqi: Lub plhaub sab nraud muab kev tiv thaiv ntxiv rau cov khoom siv kho qhov muag, kom ntseeg tau tias lawv tuaj yeem hloov mus rau ntau qhov chaw teeb tsa. Nws kuj tseem muab kev tiv thaiv kom nruj, compression, thiab dabtsi yog khoov, thaum muab dej thiab noo noo tsis kam. Rau qhov teeb meem kev nyab xeeb hluav taws kub siab, cov khoom siv tsis muaj pa taws tsis muaj halogen yog siv los txhim kho kev ruaj ntseg cable, tiv thaiv cov neeg ua haujlwm los ntawm cov pa phem, pa taws, thiab nplaim taws thaum muaj hluav taws.
Siv: Cov xim sheath yuav tsum ua raws li GB / T 6995.2 tus qauv. Yog hais tias lub optical fiber yog B1.3-hom, lub sheath yuav tsum daj; rau B6-hom, lub plhaub yuav tsum yog daj lossis ntsuab; rau AIa.1-hom, nws yuav tsum yog txiv kab ntxwv; AIb-hom yuav tsum yog grey; A1a.2-hom yuav tsum yog ntsuab ntsuab; thiab A1a.3-hom yuav tsum yog ntshav.
Daim ntawv thov Scenario
1. Feem ntau siv rau hauv kev sib txuas lus hauv cov tsev, xws li chaw ua haujlwm, tsev kho mob, tsev kawm ntawv, tsev nyiaj txiag, khw muag khoom, cov chaw khaws ntaub ntawv, thiab lwm yam. Nws yog siv rau kev sib txuas ntawm cov khoom siv hauv chav server thiab kev sib txuas lus nrog cov neeg ua haujlwm sab nraud. Tsis tas li ntawd, cov kab hluav taws xob sab hauv tsev tuaj yeem siv rau hauv kev sib txuas hauv tsev, xws li LANs thiab cov tshuab ntse hauv tsev.
2. Kev siv: Sab hauv tsev optical cables yog compact, hnav, txuag chaw, thiab yooj yim rau nruab thiab tswj. Cov neeg siv tuaj yeem xaiv ntau hom kab hluav taws xob sab hauv tsev raws li qhov xav tau ntawm thaj chaw tshwj xeeb.
Hauv cov tsev lossis chaw ua haujlwm, cov qauv hauv tsev PVC tuaj yeem siv tau.
Raws li lub teb chaws tus qauv GB / T 51348-2019:
①. Cov vaj tse pej xeem nrog qhov siab ntawm 100m lossis ntau dua;
②. Cov vaj tse pej xeem nrog qhov siab ntawm 50m thiab 100m thiab thaj tsam tshaj 100,000㎡;
③. Cov chaw khaws ntaub ntawv ntawm qib B lossis siab dua;
Cov no yuav tsum siv cov nplaim hluav taws kub-retardant optical cables nrog qhov ntsuas hluav taws tsis muaj qis dua cov pa luam yeeb tsawg, halogen-free B1 qib.
Nyob rau hauv UL1651 tus qauv hauv Teb Chaws Asmeskas, cov nplaim hluav taws kub siab tshaj plaws yog OFNP-rated optical cable, uas yog tsim los tua tus kheej hauv 5 meters thaum raug nplaim taws. Tsis tas li ntawd, nws tsis tso cov pa phem los yog vapor, ua rau nws tsim nyog rau kev teeb tsa hauv qhov cua nkag los yog cua-rov qab siab tshuab siv hauv HVAC cov cuab yeej.
Post lub sij hawm: Feb-20-2025