Nrog rau kev txhim kho ntawm kev txawj ntse hauv kev lag luam xa khoom thoob ntiaj teb, cov xov hlau hauv nkoj ua lub luag haujlwm tseem ceeb hauv kev sib txuas lus cov ntaub ntawv hauv nkoj thiab cov tshuab automation. Lawv txuas cov sensors, controllers, thiab actuators hauv cov nkoj, txhawb nqa cov haujlwm xws li kev tswj hwm tsis siv neeg, kev saib xyuas deb, thiab kev tswj hwm kev siv hluav taws xob.
Yuav kom hloov kho rau qhov chaw nyob hauv dej hiav txwv uas muaj cov ntsev ntau, cov av noo ntau, thiab kev cuam tshuam hluav taws xob muaj zog, cov xov hlau hauv dej hiav txwv siv cov khoom siv tshwj xeeb thiab cov qauv tsim, muab kev tiv thaiv corrosion, hluav taws kub retardancy, kev ua haujlwm tsis muaj pa luam yeeb halogen tsawg, thiab kev tiv thaiv EMI zoo heev kom ntseeg tau tias kev ua haujlwm ruaj khov mus sij hawm ntev. Tsab xov xwm no tsom mus rau kev tsim qauv ntawm cov xov hlau hauv dej hiav txwv.
Kev Txheeb Xyuas Txog Cov Qauv Tseem Ceeb
1. Tus Neeg Coj
Cov xov hlau hauv nkoj feem ntau siv cov hlau tooj liab uas muaj hlua khi. Cov hlau uas muaj hlua khi ua kom muaj kev ua haujlwm hluav taws xob zoo thiab lub neej ua haujlwm thaum tseem ua rau kev teeb tsa yooj yim. Piv nrog cov hlau tooj liab liab qab, cov hlau tooj liab uas muaj hlua khi muab kev tiv thaiv zoo dua rau kev xeb ntsev.
Kev siv cov hlau tooj liab uas muaj hlua khi pab txhim kho cov teeb meem xws li kev txo qis ntawm cov zaus siab, kev qaug zog ntawm kev khoov, kev xeb ntsev, kev tawg yooj yim ntawm qhov kub thiab txias, thiab qhov chaw teeb tsa tsawg, ua rau lawv tsim nyog rau cov ntawv thov cable tsheb hauv hiav txwv.
2. Kev rwb thaiv tsev
Ua npuas ncauj polyethylene (Ua npuas ncauj-PE)Feem ntau siv ua cov khoom siv rwb thaiv tsev rau cov xov hlau hauv nkoj. Cov khoom rwb thaiv tsev polyethylene ua npuas ncauj zoo txo qhov dielectric tas li, yog li txo qhov teeb liab attenuation, thaum tseem muab lub peev xwm thaiv dej ntev. Tsis tas li ntawd, kev siv Foam-PE pab txo qhov hnyav ntawm cov xov hlau, pab txo qhov hnyav ntawm lub nkoj tag nrho.
3. Kev Tiv Thaiv
Cov qauv tiv thaiv ntawm cov kab hlau marine zoo ib yam li cov kab hlau marine network thiab feem ntau muajdaim kab xev yas coated txhuasua ke nrog cov hlau tooj liab uas muaj hlau nplaum. Cov txheej tiv thaiv no yog tsim los thaiv kev cuam tshuam hluav taws xob thiab xyuas kom meej tias kev xa xov hluav taws xob ruaj khov.
Feem ntau, cov ntawv ci txhuas tuab yog ≥ 0.012 hli nrog 100% kev them nqi, thaum cov hlau tooj liab feem ntau siv 0.12 hli ib txoj xov hlau, nrog tsawg kawg yog 60%.
Feem ntau, cov xov hlau hauv nkoj siv cov qauv tiv thaiv ob npaug ntawm cov yas coated aluminium ntxiv rau cov hlau tooj liab braid. Cov kev tiv thaiv sib xyaw no tuaj yeem txhim kho kev tiv thaiv kom zoo dua rau 70–90 dB @ 30 MHz.
Tsis tas li ntawd xwb, feem ntau muaj cov xov hlau tooj liab khov kho lossis cov xov hlau uas muaj hlua khi kom muab kev sib txuas ntxiv.
4. Lub hnab looj tes
Lub plhaub ua haujlwm los tiv thaiv cov xov hlau los ntawm kev cuam tshuam sab nraud. Ua thawj kab tiv thaiv, cov khoom siv plhaub ntawm cov xov hlau hauv nkoj yuav tsum muaj kev tiv thaiv kev xeb ntsev, kev puas tsuaj, thiab kev tawg hluav taws kom ntseeg tau tias muaj kev ntseeg siab thiab kev nyab xeeb hauv cov xwm txheej hnyav.
Txhawm rau txhim kho kev nyab xeeb ntawm cov kab ke sib txuas lus hauv nkoj, cov xov hlau hauv nkoj feem ntau siv cov ntaub ntawv polyolefin uas tsis muaj pa luam yeeb halogen tsawg (LSZH-SHF1). Cov ntaub ntawv no tsis tso pa luam yeeb lom thaum lub sijhawm hlawv thiab ua raws li IEC 60332-1 ib txoj hlua hluav taws kub, IEC 60332-3-22 pob hluav taws kub, nrog rau IEC 60754-1/2 thiab IEC 61034-1/2 cov kev cai tsis muaj pa luam yeeb halogen tsawg. Qhov no tsis tsuas yog txo cov kev pheej hmoo rau kev nyab xeeb ntawm cov neeg ua haujlwm hauv qhov xwm txheej muaj hluav taws xwb tab sis kuj txo qis kev cuam tshuam rau ib puag ncig.
Hauv cov platforms offshore thiab cov ntawv thov zoo sib xws, cov cables marine kuj tseem yuav tsum tau ua kom pom tias muaj roj thiab av nkos tsis kam. Hauv cov xwm txheej zoo li no, cov ntaub ntawv LSZH-SHF2 nrog kev tiv thaiv roj zoo dua, lossis cov ntaub ntawv LSZH-SHF2-MUD nrog kev tiv thaiv av nkos ntxiv, raug xaiv rau lub sheath.
5. Cov Qauv Tshwj Xeeb
Nyob rau hauv cov xwm txheej ib txwm muaj, cov qauv cable tsheb npav hauv dej hiav txwv uas muaj cov neeg coj hluav taws xob, rwb thaiv tsev, tiv thaiv, thiab hnab looj tes txaus rau feem ntau ntawm cov ntawv thov hauv dej hiav txwv. Thaum muaj kev ua tau zoo dua, cov qauv cable tuaj yeem hloov kho raws li qhov ntawd.
Piv txwv li, hauv cov ntawv thov uas xav tau kev tiv thaiv ntxiv, ib txheej hlau tiv thaiv yuav raug ntxiv, nrog rau ib txheej sab nraud ntxiv los tsim ib lub qauv hlau tiv thaiv ob txheej. Cov txheej hlau tiv thaiv feem ntau yog ua los ntawm cov hlau galvanized braid, uas ua rau lub zog kho tshuab zoo dua thiab tiv thaiv cov xov hlau los ntawm kev puas tsuaj hauv cov chaw ib puag ncig hnyav.
Thaum cov xov hlau hauv tsheb npav marine siv rau hauv cov ntawv thov tiv taus hluav taws, cov ntaub qhwv mica raug ntxiv rau saum cov txheej rwb thaiv tsev kom ua tau raws li IEC 60331 cov qauv tiv taus hluav taws thiab cov kev cai rov qab mus rau chaw nres nkoj kom muaj kev nyab xeeb.
Xaus lus
Kev tsim qauv thiab kev xaiv cov khoom siv ntawm cov xov hlau marine yog cov yam tseem ceeb uas ua rau muaj kev sib kis tau ruaj khov thiab txhim khu kev qha hauv cov chaw nyob hauv dej hiav txwv hnyav. Txawm hais tias nws yog cov hlau tooj liab tinned, cov khoom rwb thaiv tsev polyethylene ua npuas ncauj, lossis cov ntaub thaiv hluav taws uas tsis muaj pa luam yeeb halogen tsawg, cov qauv tsim no tau dhau los ua qhov kev txhim kho thiab kev ua kom zoo dua.
Cov qauv cable zoo tsim los ua kom muaj kev ua haujlwm tas mus li thiab txhim khu kev qha ntawm cov cables marine hauv cov chaw marine uas muaj qhov kub siab, xeb ntsev, thiab muaj zog cuam tshuam electromagnetic.
Lub sijhawm tshaj tawm: Lub Ib Hlis-21-2026