Nrog rau txoj kev loj hlob ntawm cov neeg niaj hnub no, lub network tau dhau los ua ib feem tseem ceeb ntawm tib neeg lub neej, thiab kev sib kis ntawm cov teeb liab network tsis tuaj yeem raug cais tawm ntawm cov kab hluav taws xob (xws li network cables).Nkoj thiab dej hiav txwv ua haujlwm yog ib qho kev lag luam niaj hnub uas txav mus rau hauv hiav txwv, nrog kev ua kom muaj zog thiab kev txawj ntse, thiab kev siv ntau dua.Cov kev xav tau rau cov cables network yog ib txwm siab dua li cov hauv av ib puag ncig.Hnub no, kuv yuav qhia luv luv txog lub nkoj thiab hiav txwv network cables rau txhua tus.
Lub network cable peb tab tom tham txog yog feem ntau twisted khub.Tus neeg xyuas pib cov khoom siv ntawm lub network cable yog tooj liab, nrog ntau tus neeg sib tw stranded thiab ib leeg stranded khoom conductors.Copper conductors nrog PE los yog PO rwb thaiv tsev yog ntxiv, twisted counterclockwise nyob rau hauv khub, thiab ces twisted rau hauv ib tug cable los ntawm plaub khub ntawm hlau.Tus ntoo khaub lig skeleton, shielding txheej, ntws hlau, thiab weaving txheej yog ntxiv raws li xav tau, thiab thaum kawg lub tes tsho tiv thaiv yog extruded kom tiav ntau lawm.
1.Network cable cais
Feem ntau siv network cables tuaj yeem muab faib uaCAT5E(super tsib pawg), CAT6 (rau pawg), CAT6A (super rau pawg), CAT7 (xya pawg), CAT7A (super xya pawg), CAT8 ( yim pawg), ntawm cov uas:
Super Class 5 network cable: Sab nraud ntawm lub network cable yog cim nrog CAT.5e, nrog kev sib kis ntawm 100MHz thiab qhov siab tshaj plaws ntawm 1000Mbps, haum rau gigabit tes hauj lwm.Muaj kev ua tau zoo dua li Chav Kawm 5 kab, txhim kho cov ntsuas xws li NEXT, PS-ELFEXT, Atten, thiab txhawb kev siv duplex;Tam sim no, ib feem loj ntawm cov kab hluav taws xob network tau muab faib ua Qeb 5, tshwj xeeb tshaj yog rau peb tus kheej siv.
Rau hom network cables: Sab nraud ntawm lub network cable yog cim nrog CAT.6, nrog rau qhov siab tshaj plaws kis tau tus mob ntawm 250MHz thiab qhov siab tshaj plaws kis tau tus mob ntawm 1Gbps, haum rau gigabit networks.Kev ua kom pom tseeb ntawm kev sib tham sib piv (PS-ACR) ntawm Qeb 6 cabling systems yuav tsum muaj qhov tseem ceeb ntawm 200MHz, muab ob npaug ntawm bandwidth ntawm Qeb 5. Kev sib kis tau zoo ntawm Qeb 6 cabling ntau dua li ntawm Qib 5 cov qauv, ua nws yog qhov tsim nyog tshaj plaws rau cov ntawv thov nrog kev sib kis ntau dua 1Gbps.
Super Qeb 6 network cable: Sab sab nraud ntawm lub network cable yog cim nrog CAT.6e lossis CAT6A, nrog qhov siab tshaj plaws kis tau tus mob ntawm 500MHz thiab kis ceev ntawm 10Gbps, haum rau siv hauv 10 Gigabit tes hauj lwm.Qhov no ua rau Super Qeb 6 network cables nrov tshaj plaws twisted khub nyob rau hauv cabling systems, thiab kev ua tau zoo ntawm Super Qeb 6 twisted khub cables zoo heev ua tau raws li high-speed bandwidth yuav tsum tau ntawm cov ntaub ntawv chaw.
Qeb 7 / Super Qeb 7 Network Cable: Sab sab nraud ntawm lub network cable yog cim nrog CAT7 lossis CAT7A, nrog qhov siab tshaj plaws kis tau tus mob ntawm 600/1000MHz thiab kis tau tus mob ntawm 10Gbps.Cov tub ntxhais ntawm Qeb 7 feem ntau yog ua los ntawm tooj liab hlau nrog lub thickness ntawm 0.57 hli, uas yog high-purity oxygen dawb tooj liab.Qhov no ua kom muaj kev tiv thaiv ultra-tsawg, ua rau kev sib kis ntev dua thiab cov teeb liab ruaj khov dua.
Qeb 8 Network Cable: Cat8 Qeb 8 Network Cable yog lub cim tshiab ntawm ob chav thaiv (SFTP) network jumper, uas muaj ob lub xov hlau, tuaj yeem txhawb nqa bandwidth ntawm 2000MHz, thiab muaj qhov sib kis tau txog li 40Gb / s.Tsis tas li ntawd, Cat8 network cable tuaj yeem sib xyaw nrog txhua RJ45 cables thiab tsim tshwj xeeb rau 25/40GBASE-T daim ntawv thov.Txawm li cas los xij, nws qhov kev sib kis deb yog luv luv, tsuas yog 30m, ua rau nws tshwj xeeb tshaj yog rau kev sib txuas cov servers, keyboards, faib thav duab, thiab lwm yam khoom siv hauv cov chaw khaws ntaub ntawv luv luv.
Raws li kev tiv thaiv:
Network cablestau muab faib ntxiv rau hauv kev sib tw twisted khub (STP) thiab unshielded twisted khub (UTP).
Shielded Twisted Pair (STP):
Cov txheej txheej txheej yog qhwv hauv cov khoom siv hlau, feem ntau yog txhuas ntawv ci, kom txo cov hluav taws xob thiab tiv thaiv cov ntaub ntawv los ntawm kev eavesdropped.Nyob rau tib lub sijhawm, nws muaj cov ntaub ntawv sib kis tau zoo, tab sis tus nqi siab, thiab kev teeb tsa kuj tseem nyuaj.
Unshielded Twisted Pair (UTP):
UTP tsis muaj cov khoom siv tiv thaiv hlau, tsuas yog ib txheej ntawm cov khoom siv rwb thaiv tsev qhwv ib ncig ntawm nws, uas yog pheej yig thiab hloov tau yooj yim hauv kev sib txuas.Tsuas yog qee lub sijhawm tshwj xeeb (xws li thaj chaw uas muaj hluav taws xob hluav taws xob loj), UTP feem ntau yog siv.UTP kuj tseem yog cov kab hluav taws xob siv ntau tshaj plaws rau kev siv hauv tsev.
Daim ntawv thov ib puag ncig ntawm marine network cables yog qhov nyuaj, nrog rau qib siab ntawm electromagnetic cuam tshuam.Feem ntau, muaj cov kev xav tau siab rau kev tiv thaiv, uas tuaj yeem muab faib ua cov hom hauv qab no raws li lub vijtsam tag nrho thiab sub screen:
F / UTP: Sab nraud aluminium ntawv ci tag nrho cov tshuaj ntsuam, tsis muaj kev tiv thaiv ntawm cov hlau khub;CAT5E thiab CAT6 feem ntau siv.
SF/UTP: Sab nraud tooj liab hlau weaving txhuas ntawv ci tag nrho cov tshuaj ntsuam, tsis muaj shielding ntawm hlau khub, feem ntau siv nyob rau hauv CAT6.
S / FTP: Sab nraud tooj liab hlau braid shielding, khub rau khub txhuas ntawv ci shielding, zoo shielding nyhuv, CAT6A thiab saum toj no yuav siv cov qauv no.
2.Qhov sib txawv ntawm marine network cables
Piv nrog rau thaj av network cables, marine network cables muaj qhov sib txawv tseem ceeb hauv lawv qhov kev teeb tsa thiab kev siv ib puag ncig.Piv txwv li, qhov chaw electromagnetic nyob rau hauv lub nkoj yog complex, qhov chaw yog nqaim, huab cua av noo thiab salinity yog siab, sab nraum zoov ultraviolet hluav taws xob muaj zog, cov roj muaj kuab paug ib puag ncig yog siab, qhov yuav tsum tau tiv thaiv hluav taws kub yog siab, kev tsim kho ib puag ncig yog hnyav. , thiab nws yog qhov nyuaj rau kev khiav tawm thaum muaj xwm txheej, uas muaj cov kev xav tau ntau dua rau kev ua haujlwm ntawm cov cables.
Marine network cables feem ntau tsim raws li IEC 61156-5/6 tus qauv.IEC 61156-5 yog tsim rau qhov ntev-ntev kab rov tav nteg, feem ntau siv cov tub ntxhais cov khoom siv, nrog cov neeg xyuas pib zoo thiab ntev dua thiab ruaj khov cov teeb liab kis tau tus mob.IEC 61156-6 yog qhov tsim nyog rau thaj chaw ua haujlwm, xws li chav tsev computer ib puag ncig, qhov twg cov neeg siv sib tw siv tau, ua rau cov cables hloov tau yooj yim thiab tsim nyog rau qhov chaw luv luv ntawm qhov chaw nqaim.Nws yog feem ntau siv rau jumpers.
Qhov dav dav ntawm kev ua ub no rau cov nkoj yog nyob rau saum hiav txwv.Thaum muaj hluav taws kub, nws nyuaj rau cov neeg khiav tawm, thiab cov kab hluav taws xob yog cov nplaim taws.Cov pa luam yeeb uas tsim los ntawm combustion tuaj yeem ua rau muaj kev puas tsuaj loj rau tib neeg kev noj qab haus huv.Txhawm rau txo qhov kev puas tsuaj ntawm hluav taws kub, cov kab hluav taws xob hauv hiav txwv feem ntau siv cov pa luam yeeb tsawg thiab tsis muaj halogen-dawb (LSZH) nplaim retardant polyolefin ua cov khoom siv sab nrauv, ua tau raws li cov kev cai ntawm cov nplaim hluav taws kub ntawm IEC60332 thiab cov pa luam yeeb tsawg thiab tsis muaj halogen. Raws li IEC 60754-1/2 thiab IEC 61034-1/2.Hauv qee qhov xwm txheej tshwj xeeb, cov kab hluav taws xob tiv thaiv hluav taws xob uas muaj kev tiv thaiv ntau dua yuav raug siv, thiab cov khoom siv hluav taws xob xws li mica daim kab xev yuav raug ntxiv kom tau raws li qhov yuav tsum tau muaj hluav taws kub ntawm IEC60331, kom ntseeg tau tias txawm tias tom qab hluav taws kub, Circuit Court kuj tseem tuaj yeem ua haujlwm. ib txwm ua rau qee lub sijhawm, yog li ua kom muaj kev nyab xeeb ntawm tib neeg lub neej thiab khoom.
Hauv qee qhov chaw tshwj xeeb marine, xws li offshore roj refining platforms (FPSOs), dredgers loj, thiab lwm yam, cables xav tau kev sib cuag mus ntev nrog sediment, roj slurry, thiab ntau yam corrosive.Txhawm rau txhawm rau txhim kho lub zog ntawm cov kab hluav taws xob sab nraud, cov kab txuas txuas txuas txuas nrog polyolefin (SHF2) lossis av nkos resistant (SHF2 MUD) cov hlua khi sab nraud yuav tsum tau siv.Crosslinking polyolefins yog ib txoj hauv kev ntawm lub cev irradiation los yog tshuaj lom neeg cov tshuaj tiv thaiv crosslinking, uas txhim kho kev ua haujlwm ntawm polyolefins thiab ua rau lawv muaj lub neej ntev kev pab cuam thiab lub cev zoo dua tom qab crosslinking.Av nkos resistant cross-linked polyolefin hais txog kev sib txuas ntawm polyolefin uas muaj zog corrosion kuj thiab hnav tsis kam, uas ua rau cov cables kom tau raws li cov av nkos uas yuav tsum tau ua ntawm NEK 606 specification.Txhawm rau txhawm rau txhim kho cov khoom siv hluav taws xob txuas ntxiv, cov cuab yeej hlau kuj tseem yuav ntxiv rau hauv cable, xws li galvanized steel hlau woven armor (GSWB), tinned tooj liab hlau woven armor (TCWB), thiab lwm yam. cable yuav muaj zoo mechanical zog, yog li zoo dua tiv thaiv lubnetwork kabthiab txo qhov tshwm sim ntawm compression thiab nro pob txha.Nyob rau tib lub sijhawm, cov cuab yeej hlau kuj tuaj yeem ua lub luag haujlwm tiv thaiv kev cuam tshuam sab nraud ntawm cov hlau nplaum, txhim kho kev ncaj ncees ntawm cov ntaub ntawv xa mus.
Ntxiv rau,marine network cablesFeem ntau yuav tsum tau UV resistant (uas yog, UV resistant).Txij li thaum lub nkoj thiab marine ib puag ncig muaj tshav ntuj txaus, muaj zog UV, thiab cov kab hluav taws xob zoo tib yam yog qhov yooj yim rau lub hnub nyoog, cov tubrog nkoj yuav siv cov xenon teeb lossis dej tshuaj tsuag raws li UL1581 / ASTM G154-16 cov qauv los tsim cov huab cua ntawm cov cables raug tshav ntuj thiab los nag. thaum lub sij hawm siv tiag tiag, thiaj li mus ntsuam xyuas lub peev xwm los tiv thaiv kev laus ntawm cables.
Post lub sij hawm: Oct-26-2023