Ua raws li cov kev taw qhia ntawm cov kev paub yooj yim ntawmmarine network cablesnyob rau hauv qhov teeb meem dhau los, hnub no peb yuav txuas ntxiv qhia txog cov qauv tshwj xeeb ntawm marine network cables.Yooj yim muab, cov kab hluav taws xob sib txuas feem ntau yog tsim los ntawm cov khoom siv hluav taws xob, cov txheej txheem rwb thaiv tsev, cov txheej thaiv kev tiv thaiv, thiab cov ntaub thaiv sab nrauv, thaum cov hlua khi hlua khi yog tsim los ntawm cov khoom siv hluav taws xob, cov txheej txheem rwb thaiv tsev, cov ntaub thaiv npog, sab hauv sheaths, armor txheej, thiab sab nrauv sheaths.Nws tuaj yeem pom tias armored network cables tsis tau tsuas yog muaj ib txheej ntxiv ntawm armor piv rau cov pa network cables, tab sis kuj muaj ib txheej ntxiv ntawm kev tiv thaiv hauv sheath.Tom ntej no, peb yuav coj txhua tus kauj ruam los ntawm kauj ruam kom nkag siab tob dua ntawm marine network cables.
1. Tus coj
Covcov ntaub ntawv ntawm lub network cableconductors yuav muab faib ua tinned tooj liab, ntshiab tooj liab, txhuas hlau, tooj liab clad txhuas, tooj liab clad hlau, thiab lwm yam.Raws li IEC 61156-5-2020 tus qauv, cov khoom siv tooj liab uas muaj cov kab uas hla ntawm 0.4mm thiab 0.65mm yuav tsum tau siv rau cov cables.Nyob rau tib lub sijhawm, tib neeg muaj kev xav tau ntau ntxiv rau kev sib kis tus nqi thiab kev ruaj ntseg ntawm cov cables network.Cov khoom siv hluav taws xob tsis muaj zog xws li txhuas hlau, tooj liab clad aluminium, thiab tooj liab clad hlau tau maj mam raug tshem tawm hauv kev ua lag luam, nrog cov tinned tooj liab thiab liab qab cov ntaub ntawv uas nyob rau feem coob ntawm kev ua lag luam.Piv rau cov tooj liab ntshiab, tinned tooj liab muaj cov khoom siv tshuaj lom neeg ruaj khov thiab tuaj yeem tiv thaiv corrosion ntawm conductors los ntawm oxidation, tshuaj, thiab av noo, yog li tswj kev ruaj ntseg hauv Circuit Court.
Lub network cable conductor qauv muab faib ua cov khoom siv hluav taws xob thiab cov neeg xyuas pib stranded.Raws li lub npe qhia, khoom neeg xyuas pib yog hais txog ib tug tib tooj liab hlau, thaum stranded conductor yog tsim los ntawm ntau yam me me cross-sectional tooj liab xov hlau qhwv nyob rau hauv ib tug kauv daim ntawv, concentric.Qhov sib txawv tseem ceeb tshaj plaws ntawm cov khoom sib txuas thiab cov khoom siv hluav taws xob yog lawv qhov kev sib kis tau zoo.Vim qhov loj dua ntawm qhov chaw hla ntawm cov hlau, qhov qis dua qhov kev nkag mus.Yog li ntawd, lub attenuation ntawm stranded conductors yog 20% -50% ntau dua li cov khoom conductors.Thiab muaj inevitably sib txawv ntawm cov strands ntawm tooj liab hlau nyob rau hauv stranded conductor, ua rau DC siab dua.Hauv ntau qhov xwm txheej, engineers nyiam siv cov khoom siv hluav taws xob network cables.Thaum ntsib cov xwm txheej tshwj xeeb uas xav tau qhov chaw nqaim thiab cov xaim hloov pauv tau yooj yim, lawv yuav siv cov khoom hloov pauv hloov tau yooj yim dua kom ua tau raws li qhov yuav tsum tau ua.
Feem ntau cov cables yuav siv ob qhov tshwj xeeb ntawm cov neeg xyuas pib: 23AWG (0.57mm) thiab 24AWG (0.51mm).CAT5E siv 24AWG conductors, thaum CAT6, CAT6A, CAT7, thiab CAT7A xav tau kev sib kis tau zoo, yog li 23AWG conductors yuav siv.Tau kawg, IEC cov lus qhia tshwj xeeb tsis qhia meej txog cov xov hlau tshwj xeeb rau ntau hom cables network.Ntev npaum li cov txheej txheem tsim khoom zoo heev thiab kev sib kis tau raws li qhov yuav tsum tau ua, 24AWG conductors kuj tsim nyog rau CAT6 thiab saum toj no cov cables.
2. rwb thaiv tsev
Cov txheej rwb thaiv tsev ntawm lub network cable feem ntau yog siv los tiv thaiv kev xau ntawm cov teeb liab thaum sib kis hauv cable, yog li zam cov ntaub ntawv to.Raws li IEC60092-360 tus qauv thiab cov khoom siv hluav taws xob hauv tsev xws li GB / T 50311-2016, high-density polyethylene (HDPE) lossis foamed polyethylene (PE Foam) cov ntaub ntawv feem ntau yog siv los ua cov ntaub ntawv rwb thaiv tsev rau marine network cables.High density polyethylene muaj kev tiv thaiv zoo rau qhov kub thiab txias, muaj zog txhua yam khoom, siab dielectric tsis tu ncua, thiab zoo ib puag ncig kev ntxhov siab.Vim nws cov kev ua tau zoo heev, nws yog dav siv.Foamed polyethylene yog tsim rau siab kis tus nqi network cables nrog CAT6A thiab saum toj no specifications vim nws zoo dielectric zog.
3. Hla pob txha
Tus ntoo khaub lig skeleton, tseem hu ua tus ntoo khaub lig keel, yog siv los cais plaub khub ntawmnetwork cablesnyob rau hauv plaub txoj kev sib txawv, yog li txo cov crosstalk ntawm cov khub;Tus ntoo khaub lig keel feem ntau yog tsim los ntawm HDPE nrog txoj kab uas hla ntawm 0.5 hli.Qeb 6 thiab saum toj no network cables yog rhiab heev rau lub teeb liab "suab nrov" vim xav tau kev xa cov ntaub ntawv ntawm 1Gps lossis ntau dua.Cov kev xav tau siab dua rau kev tiv thaiv kev cuam tshuam ntawm cov cables.Yog li ntawd, rau Qeb 6 thiab saum toj no network cables uas tsis siv txhuas ntawv ci hlau thaiv thaiv, ib tug ntoo khaub lig skeleton cais ntawm plaub khub ntawm hlau yuav siv tau.
Txawm li cas los xij, tsis muaj kev siv tus ntoo khaub lig pob txha rau Qeb 5 network cables thiab network cables shielded nrog aluminium foil khub.Vim hais tias kev sib kis bandwidth ntawm Super Five network cable nws tus kheej tsis loj, cov qauv twisted ntawm lub cable nws tus kheej tuaj yeem ua tau raws li qhov xav tau los tiv thaiv kev cuam tshuam.Yog li ntawd, tsis tas yuav tsum muaj tus ntoo khaub lig pob txha.Aluminium ntawv ci siv los tiv thaiv lub network cable nws tus kheej tuaj yeem tiv thaiv kev cuam tshuam ntawm hluav taws xob ntau zaus.Yog li ntawd, tsis tas yuav tsum siv lub cev pob txha.Txoj hlua tensile plays lub luag haujlwm tiv thaiv lub network cable los ntawm kev ncab thiab cuam tshuam rau nws txoj haujlwm.Tam sim no, cov tuam txhab lag luam loj feem ntau siv fiberglass lossis nylon hlua ua tensile ropes.
4. Cov ntaub thaiv npog
Lub shielding txheej ntawm lub network cable hais txog txhuas ntawv ci thiab woven mesh, thiab shielding txheej yog tsuas yog siv los tiv thaiv electromagnetic cuam tshuam thiab xyuas kom meej cov teeb liab kis tau tus mob.Lub shielding txheej ntawm ib tug shieldednetwork kabtsuas yog ib txheej ntawm txhuas ntawv ci, nrog lub thickness ntawm tsis tsawg tshaj li 0.012mm thiab ib tug wrapping overlap tus nqi ntawm tsis tsawg tshaj li 20%.Ib txheej ntawm PET yas zaj duab xis, feem ntau hu ua Mylar, yuav muab qhwv ntawm lub cable thiab aluminium foil ib txheej shielding kom cais cov dej ntws tam sim no ntawm cov cable thiab cov hlau thaiv txheej thiab tiv thaiv cov tam sim no ntau dhau los ntawm kev puas tsuaj rau cable.Muaj ob hom kev thaiv ob npaug ntawm cov cables, ib qho yog SF / UTP (sab nrauv braiding + aluminium ntawv ci zuag qhia tag nrho), thiab lwm yam yog S / FTP (sab nrauv braiding + hlau rau txhuas ntawv ci ib feem shielding).Ob leeg yog tsim los ntawm txhuas ntawv ci thiab woven mesh, qhov chaw woven mesh yog ua los ntawm tinned tooj liab hlau nrog ib txoj kab uas hla ntawm tsis tsawg tshaj li 0.5 hli, thiab lub weaving ceev yuav customized raws li ib puag ncig yuav tsum tau.Feem ntau, muaj ntau lub zog siv xws li 45%, 65%, thiab 80%.Raws li IEC60092-350 tus qauv tsim qauv rau cov tubrog nkoj cables, cov xaim hauv av hauv kev sib cuag nrog cov hlau saum npoo ntawm cov txheej tiv thaiv yuav tsum tau ntxiv rau ib txheej txheej thaiv kab hluav taws xob tiv thaiv kom tsis txhob muaj kev puas tsuaj zoo li qub, thaum ob lub thaiv thaiv kab hluav taws xob tsis zoo. yuav tsum tau ntxiv raws li cov hlau braid txheej tuaj yeem tso hluav taws xob zoo li qub.
5. Armor
Armored network cable hais txog lub network cable nrog cov khoom siv hlau tiv thaiv txheej.Lub hom phiaj ntawm kev ntxiv ib txheej armor rau lub network cable tsis yog tsuas yog txhim kho kev tiv thaiv kev tiv thaiv xws li tensile zog thiab compressive zog kom ntev nws cov kev pab cuam lub neej, tab sis kuj los txhim kho kev tiv thaiv kev cuam tshuam los ntawm kev tiv thaiv kev tiv thaiv.Cov ntaub ntawv armor ntawm marine network cables yog feem ntau woven armor, ua los ntawm galvanized steel hlau, tooj liab hlau, hlau plated tooj liab hlau, los yog tooj liab alloy hlau uas ua tau raws li ISO7959-2 tus qauv.Hauv cov txheej txheem tsim khoom tiag tiag, feem ntau ntawm cov hlau armor yog ua los ntawm galvanized steel hlau weaving (GSWB) thiab tinned tooj liab hlau weaving (TCWB).GSWB cov ntaub ntawv muaj zog dua txhua yam thiab muaj zog tiv taus rau qhov kub thiab txias, ua rau nws tsim nyog rau cov chaw uas yuav tsum tau muaj zog cable;TCWB cov ntaub ntawv muaj zog dua, me me dabtsi yog khoov vojvoog, tab sis qis zog, thiab yog haum rau cov chaw uas xav tau siab rau cable toughness.
6. Lub tsho
Lub sab nrauv ntawm lubnetwork kabfeem ntau hu ua cov txheej txheem sab nrauv.Nws txoj haujlwm yog los qhwv plaub khub ntawm cov hlua txuas hauv ib qho chaw, ua kom yooj yim rau kev xaim, thiab tiv thaiv plaub khub ntawm cov xov hlau hauv lub network cables.Cov txheej txheej sab nrauv yuav tsum muaj qhov sib txawv thiab zoo ib yam, ua kom nruj homogeneous tag nrho, thiab npog cov khoom hauv qab no.Thaum tev tawm ntawm lub tsho sab nrauv, nws yuav tsis ua rau muaj kev puas tsuaj rau cov rwb thaiv tsev sab hauv lossis tiv thaiv.Raws li qhov yuav tsum tau muaj ntawm DNV Classification Society, lub thickness ntawm sab nrauv sheath ntawm marine network cable Dt = 0.04 · Df (sab nraud txoj kab uas hla ntawm lub puab qauv ntawm lub sheath) + 0.5 hli, thiab qhov tsawg kawg nkaus thickness yog 0.7 hli.Cov ntaub ntawv sheath ntawm marine network cables feem ntau yog cov pa taws tsis muaj pa taws halogen-dawb nplaim retardant polyolefin (LSZH), uas tau muab faib ua peb pawg: LSZH-SHF1, LSZH-SHF2, thiab LSZH-SHF2 MUD, thiab ua tau raws li cov khoom siv ntau yam teev tseg hauv IEC60092. -360.Thaum LSZH cov khoom yog hlawv, cov pa hluav taws kub tsis tshua muaj siab heev thiab nws tsis muaj cov roj av iodine), yog li nws tsis tsim cov roj lom ntau.Qhov teeb meem yav dhau los tau qhia tias LSZH-SHF1 yog qhov ntau tshaj plaws thiab haum rau feem ntau cov chaw sab hauv tsev, thaum LSZH-SHF2 thiab LSZH-SHF2 MUD yog tsim rau cov cheeb tsam hnyav dua, xws li FPSO thiab offshore fais fab nroj tsuag.
Post lub sij hawm: Nov-09-2023