Raws li lub neej niaj hnub no txhim kho, cov tes hauj lwm tau dhau los ua ib feem tseem ceeb ntawm lub neej txhua hnub, thiab kev xa cov teeb liab network vam khom cov cables network (feem ntau hu ua Ethernet cables). Raws li lub tuam txhab lag luam niaj hnub txawb ntawm hiav txwv, kev tsim kho hauv hiav txwv thiab ntug dej hiav txwv tau dhau los ua kev siv tshuab thiab ntse dua. Ib puag ncig nyuaj dua, ua rau muaj kev xav tau ntau dua rau cov qauv ntawm Ethernet cables thiab cov ntaub ntawv cable siv. Niaj hnub no, peb yuav qhia luv luv txog cov yam ntxwv ntawm cov qauv, cov txheej txheem kev faib tawm, thiab cov khoom siv tseem ceeb ntawm cov cables Ethernet marine.
1. Kev faib tawm ntawm Cable
(1). Raws li Kev Ua Haujlwm Kis
Cov xov hlau Ethernet uas peb siv feem ntau yog ua los ntawm cov hlau tooj liab uas muaj cov qauv sib txuas ua ke, uas muaj cov hlau tooj liab ib lossis ntau txoj hlua, cov ntaub ntawv rwb thaiv tsev PE lossis PO, sib txuas ua ke, thiab tom qab ntawd plaub khub ua ke ua ib txoj hlua tiav. Raws li kev ua tau zoo, cov qib sib txawv ntawm cov xov hlau tuaj yeem xaiv tau:
Qeb 5E (CAT5E): Lub plhaub sab nraud feem ntau yog ua los ntawm PVC lossis polyolefin uas tsis muaj pa luam yeeb halogen, nrog rau zaus kis ntawm 100MHz thiab qhov ceev tshaj plaws ntawm 1000Mbps. Nws yog siv dav hauv cov tes hauj lwm hauv tsev thiab chaw ua haujlwm dav dav.
Qeb 6 (CAT6): Siv cov hlau tooj liab qib siab dua thiabpolyethylene siab ntom (HDPE)cov khoom siv rwb thaiv tsev, nrog rau lub tshuab cais cov qauv, ua kom bandwidth nce mus txog 250MHz rau kev sib kis ruaj khov dua.
Qeb 6A (CAT6A): Zaus nce mus txog 500MHz, tus nqi kis tau mus txog 10Gbps, feem ntau siv cov ntawv ci txhuas Mylar ua cov khoom tiv thaiv khub, thiab ua ke nrog cov khoom siv ua haujlwm siab uas tsis muaj pa luam yeeb halogen rau kev siv hauv cov chaw khaws ntaub ntawv.
Qeb 7 / 7A (CAT7/CAT7A): Siv tus hlau tooj liab 0.57 hli uas tsis muaj pa oxygen, txhua khub muaj kev tiv thaiv nrogDaim kab xev Mylar aluminium foil+ tag nrho cov hlau tooj liab tinned braid, txhim kho kev ncaj ncees ntawm lub teeb liab thiab txhawb nqa 10Gbps kev sib kis ceev ceev.
Qeb 8 (CAT8): Cov qauv yog SFTP nrog ob txheej tiv thaiv (aluminium foil Mylar daim kab xev rau txhua khub + tag nrho braid), thiab lub plhaub feem ntau yog cov khoom siv XLPO uas tiv taus hluav taws kub, txhawb nqa txog li 2000MHz thiab 40Gbps ceev, tsim nyog rau kev sib txuas ntawm cov khoom siv hauv cov chaw khaws ntaub ntawv.
(2). Raws li Cov Qauv Tiv Thaiv
Raws li seb cov ntaub ntawv tiv thaiv puas siv rau hauv cov qauv, Ethernet cables tuaj yeem faib ua:
UTP (Unshielded Twisted Pair): Siv cov khoom siv rwb thaiv tsev PO lossis HDPE xwb uas tsis muaj kev tiv thaiv ntxiv, pheej yig, tsim nyog rau cov chaw uas muaj kev cuam tshuam hluav taws xob tsawg kawg nkaus.
STP (Shielded Twisted Pair): Siv cov ntawv ci txhuas Mylar daim kab xev lossis cov hlau tooj liab braid ua cov khoom tiv thaiv, txhim kho kev tiv thaiv kev cuam tshuam, tsim nyog rau cov chaw muaj hluav taws xob electromagnetic nyuaj.
Cov xov hlau Ethernet hauv dej hiav txwv feem ntau ntsib kev cuam tshuam hluav taws xob muaj zog, xav tau cov qauv tiv thaiv siab dua. Cov qauv teeb tsa feem ntau suav nrog:
F/UTP: Siv cov ntawv ci txhuas Mylar ua txheej tiv thaiv tag nrho, tsim rau CAT5E thiab CAT6, feem ntau siv rau hauv cov kab ke tswj hwm hauv nkoj.
SF/UTP: Daim kab xev Mylar aluminium + daim kab xev tooj liab liab qab, txhim kho kev tiv thaiv EMI tag nrho, feem ntau siv rau lub zog hauv dej hiav txwv thiab kev xa xov tooj.
S/FTP: Txhua khub twisted siv cov ntawv ci txhuas Mylar rau kev tiv thaiv ib leeg, nrog rau ib txheej sab nraud ntawm cov hlau tooj liab braid rau kev tiv thaiv tag nrho, ua ke nrog cov khoom siv XLPO sheath uas tiv taus hluav taws kub. Qhov no yog cov qauv siv rau CAT6A thiab cov cables siab dua.
2. Qhov sib txawv ntawm Marine Ethernet Cables
Piv rau cov cables Ethernet hauv av, cov cables Ethernet hauv dej hiav txwv muaj qhov sib txawv meej hauv kev xaiv cov khoom siv thiab kev tsim qauv. Vim yog qhov chaw nyob hauv dej hiav txwv hnyav - muaj cov ntsev ntau, cov av noo ntau, kev cuam tshuam electromagnetic muaj zog, hluav taws xob UV ntau, thiab kev kub hnyiab - cov ntaub ntawv cable yuav tsum ua tau raws li cov qauv siab dua rau kev nyab xeeb, kev ruaj khov, thiab kev ua haujlwm kho tshuab.
(1). Cov Kev Cai Txheem
Cov cables Ethernet marine feem ntau yog tsim raws li IEC 61156-5 thiab IEC 61156-6. Cov cabling kab rov tav feem ntau siv cov hlau tooj liab khov kho ua ke nrog cov ntaub ntawv rwb thaiv tsev HDPE kom ua tiav qhov kev sib kis zoo dua thiab kev ruaj khov; cov hlua khi hauv cov chav khaws ntaub ntawv siv cov hlau tooj liab stranded nrog PO lossis PE rwb thaiv tsev mos dua rau kev yooj yim dua hauv qhov chaw nqaim.
(2). Hluav Taws Kub thiab Hluav Taws Kub Tiv Thaiv
Txhawm rau tiv thaiv kev kis hluav taws, cov xov hlau Ethernet hauv hiav txwv feem ntau siv cov khoom siv polyolefin uas tsis muaj pa luam yeeb tsawg (xws li LSZH, XLPO, thiab lwm yam) rau kev sheathing, ua tau raws li IEC 60332 nplaim taws retardant, IEC 60754 (tsis muaj halogen), thiab IEC 61034 (pa luam yeeb tsawg). Rau cov kab ke tseem ceeb, daim kab xev mica thiab lwm yam khoom siv hluav taws kub tau ntxiv los ua kom tau raws li IEC 60331 cov qauv hluav taws kub, kom ntseeg tau tias kev sib txuas lus tau tswj hwm thaum muaj xwm txheej hluav taws kub.
(3). Kev Tiv Thaiv Roj, Kev Tiv Thaiv Kev Sib Tsoo, thiab Cov Qauv Armoring
Hauv cov chaw ua haujlwm hauv hiav txwv xws li FPSOs thiab dredgers, Ethernet cables feem ntau raug rau roj thiab cov xov xwm corrosive. Txhawm rau txhim kho lub sheath durability, cross-linked polyolefin sheath cov ntaub ntawv (SHF2) lossis cov ntaub ntawv SHF2 MUD uas tiv taus av nkos raug siv, ua raws li NEK 606 cov qauv tiv thaiv tshuaj lom neeg. Txhawm rau txhim kho lub zog kho tshuab ntxiv, cov cables tuaj yeem raug armored nrog galvanized steel wire braid (GSWB) lossis tinned copper wire braid (TCWB), muab compression thiab tensile zog, nrog rau electromagnetic shielding los tiv thaiv lub teeb liab integrity.
(4). Kev Tiv Thaiv UV thiab Kev Ua Haujlwm Laus
Cov xov hlau Ethernet hauv dej hiav txwv feem ntau raug tshav ntuj ncaj qha, yog li cov ntaub ntawv sheath yuav tsum muaj kev tiv thaiv UV zoo heev. Feem ntau, polyolefin sheathing nrog cov pa roj carbon dub lossis cov khoom siv tiv thaiv UV yog siv thiab sim raws li UL1581 lossis ASTM G154-16 UV cov qauv laus kom ntseeg tau tias lub cev ruaj khov thiab lub neej ntev hauv cov chaw muaj UV siab.
Hauv kev xaus lus, txhua txheej ntawm kev tsim cov cable Ethernet marine yog khi nrog kev xaiv cov khoom siv cable zoo. Cov hlau tooj liab zoo, cov ntaub ntawv rwb thaiv tsev HDPE lossis PO, daim kab xev txhuas Mylar, hlau tooj liab braid, daim kab xev mica, cov ntaub ntawv XLPO sheath, thiab cov ntaub ntawv SHF2 sheath ua ke tsim cov kab ke sib txuas lus uas muaj peev xwm tiv taus cov chaw nyob hauv dej hiav txwv hnyav. Ua tus neeg muab khoom siv cable, peb nkag siab txog qhov tseem ceeb ntawm cov khoom siv zoo rau kev ua haujlwm ntawm tag nrho cov cable thiab cog lus tias yuav muab cov kev daws teeb meem khoom siv txhim khu kev qha, muaj kev nyab xeeb, thiab ua tau zoo rau kev lag luam marine thiab offshore.
Lub sijhawm tshaj tawm: Lub Rau Hli-16-2025