Thaum xaiv cov cables hluav taws xob rau cov kev siv tshwj xeeb, ib puag ncig tej yam kev mob ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab hom kab twg yog qhov tsim nyog tshaj plaws rau txoj haujlwm. Ntawm ntau hom cables muaj nyob rau hauv kev ua lag luam, txiv kab ntxwv ncig cables tshwj xeeb tshaj yog pom zoo rau lawv cov siab visibility, durability, thiab yooj, ua rau lawv haum rau ntau yam kev siv nyob rau hauv industries. Cov kab hluav taws xob no feem ntau siv rau hauv kev faib hluav taws xob, hluav taws xob hluav taws xob, thiab cov tshuab xwm txheej ceev, thiab lawv feem ntau ua tau raws li cov qauv nruj xws li SAA daim ntawv pov thawj, Australia cov qauv, thiabAS/NZS 5000.1.
Txawm li cas los xij, qhov kev xav tseem ceeb thaum siv txhua hom cable yog nws lub peev xwm ua haujlwm zoo nyob rau hauv ib puag ncig sib txawv, suav nrog qhov kub thiab txias. Ib puag ncig kub tsis tshua muaj peev xwm ua rau muaj teeb meem loj rau kev ua haujlwm cable, xws li lub peev xwm txo qis, brittleness, lossis rwb thaiv tsev degradation. Qhov no ua rau cov lus nug: Puas tuaj yeem siv lub txiv kab ntxwv lub voj voog nyob rau hauv qhov chaw qis qis?
Nyob rau hauv tsab xov xwm no, peb yuav tshawb xyuas qhov tsim nyog ntawm cov kab kab kab kab kab kab rau qhov chaw uas muaj qhov kub thiab txias, txheeb xyuas lawv cov kev tsim kho, cov khoom siv, cov qauv kev ua haujlwm, thiab kev ntsuas kub. Tsis tas li ntawd, peb yuav tshuaj xyuas qhov tseem ceeb ntawm cov yam ntxwv xws li rwb thaiv tsev, ib puag ncig kev ntxhov siab, thiab ua raws li cov qauv kev lag luam xws li SAA daim ntawv pov thawj, Australia tus qauv, thiab AS / NZS 5000.1 hauv kev txiav txim siab lawv lub peev xwm ua haujlwm hauv qhov chaw txias.
Dab tsi yogTxiv kab ntxwv Circular Cables?
Ua ntej delving rau hauv qhov tshwj xeeb ntawm yuav ua li cas txiv kab ntxwv ncig cables ua nyob rau hauv qis-kub, nws yog ib qho tseem ceeb kom to taub tias cov cables no yog dab tsi thiab lawv feem ntau siv rau. Ib tug txiv kab ntxwv ncig cable feem ntau muaj ntau yam tseem ceeb:
Tus coj: Lub hauv paus ntawm lub cable, uas nqa hluav taws xob tam sim no. Cov conductors feem ntau yog ua los ntawm tooj liab lossis txhuas, nrog tooj liab yog qhov kev xaiv ntau dua vim nws cov hluav taws xob zoo dua.
Rwb thaiv tsev: Ib puag ncig tus neeg xyuas pib yog cov khoom siv rwb thaiv tsev, uas ua haujlwm tiv thaiv hluav taws xob luv luv thiab ua kom muaj kev nyab xeeb ntawm hluav taws xob. Cov ntaub ntawv rwb thaiv tsev tuaj yeem sib txawv, nrog PVC, XLPE, thiab roj hmab yog qhov kev xaiv ntau tshaj plaws.
Shielding thiab Armoring: Qee cov cables suav nrog kev tiv thaiv ntxiv, feem ntau nyob rau hauv daim ntawv ntawm cov hlau txheej xws li txhuas ntawv ci lossis tooj liab hlau, uas ua haujlwm los tiv thaiv cov kab hluav taws xob los ntawm kev cuam tshuam electromagnetic (EMI) thiab muab kev tiv thaiv txhua yam.
Outer Jacket:Cov txheej txheej sab nraud ntawm lub cable, feem ntau yog ua los ntawm cov ntaub ntawv xws li PVC, TPE, lossis roj hmab, muab kev tiv thaiv lub cev puas tsuaj, ya raws, UV hluav taws xob, thiab lwm yam ib puag ncig. Cov xim txiv kab ntxwv tshwj xeeb feem ntau yog siv rau cov hom phiaj pom kev zoo, tshwj xeeb tshaj yog nyob rau hauv cov txheej txheem kev nyab xeeb.
Txiv kab ntxwv ncig cables yog tsim los rau ntau yam kev siv, nrog rau kev xa hluav taws xob, teeb pom kev zoo thaum muaj xwm ceev, kev nyab xeeb circuits, thiab cov khoom siv hauv tsev. Lawv nyiam nyob rau hauv ib puag ncig uas siab pom, yoog raws, thiab kav ntev yog qhov tseem ceeb.
Yuav ua li cas Kub Kub cuam tshuam rau Cables
Qhov kub thiab txias ib puag ncig tuaj yeem muaj kev cuam tshuam loj rau kev ua haujlwm ntawm cov hluav taws xob cables. Thaum raug huab cua txias, cables tuaj yeem ntsib ntau yam teeb meem, suav nrog:
1. Txo Flexibility
Ib qho teeb meem feem ntau nrog cov cables raug qhov kub thiab txias yog txo qhov yooj. Thaum cov ntaub ntawv rwb thaiv tsev txias, lawv zoo li khov, uas tuaj yeem ua rau lub cable nyuaj rau khoov lossis ua haujlwm. Qhov no yog qhov teeb meem tshwj xeeb hauv kev teeb tsa qhov twg cov cable yuav tsum tau dhau los ntawm qhov chaw nruj lossis ib puag ncig cov teeb meem. Hauv qhov xwm txheej hnyav, lub cable tuaj yeem ua kom nruj heev uas nws tuaj yeem tawg lossis tawg thaum khoov, ua rau muaj kev puas tsuaj lossis ua tsis tiav.
2. Brittleness thiab Cracking
Hauv cov huab cua txias heev, qee cov ntaub ntawv siv hauv cables, tshwj xeeb tshaj yog PVC thiab roj hmab, tuaj yeem ua nkig. Qhov no ua rau lawv muaj kev cuam tshuam ntau dua rau kev tawg lossis tawg, uas tuaj yeem cuam tshuam cov kab hluav taws xob rwb thaiv tsev thiab kev ua haujlwm zoo. Qhov no yog ib qho kev txhawj xeeb rau txhua qhov kev teeb tsa uas yuav tsum tau siv lub cable los tswj nws cov khoom siv hluav taws xob thiab kev ua haujlwm hluav taws xob.
3. Txo rwb thaiv tsev tsis kam
Cov kub txias kuj tuaj yeem cuam tshuam cov rwb thaiv tsev tiv thaiv ntawm lub cable. Raws li qhov kub thiab txias, cov ntaub ntawv insulating tuaj yeem poob qee qhov kev ua tau zoo, ua rau muaj kev cuam tshuam ntawm rwb thaiv tsev los yog luv luv Circuit Court. Qhov no tuaj yeem yog qhov kev txhawj xeeb txog kev nyab xeeb loj, tshwj xeeb tshaj yog nyob rau hauv circuits uas yuav tsum tau ua haujlwm tas li thiab txhim khu kev qha.
4. Condensation thiab Moisture puas
Nyob rau hauv ib puag ncig txias, condensation tuaj yeem tsim ntawm cov cables, tshwj xeeb tshaj yog thaum lawv txav ntawm qhov kub siab tshaj (piv txwv li, los ntawm qhov chaw sov sab hauv tsev mus rau qhov chaw tsis muaj cua sov). Cov dej noo no tuaj yeem nkag mus rau hauv cov kab hluav taws xob thiab ua rau cov rwb thaiv tsev puas tsuaj, uas ua rau muaj hluav taws xob tsis zoo lossis luv luv Circuit Court. Cov ntaub ntawv tsis muaj dej tsis zoo thiab cov tsho tsis muaj dej yog qhov tseem ceeb los txo qhov kev pheej hmoo no.
Yuav ua li cas txiv kab ntxwv voj voog Cables ua nyob rau hauv qis-kub ib puag ncig
1. Cov khoom siv rwb thaiv tsev thiab ntsuas kub
Qhov kub tsis kam ntawm cov txiv kab ntxwv ncig cables feem ntau nyob ntawm cov khoom siv rwb thaiv tsev siv. Cov ntaub ntawv rwb thaiv tsev sib txawv muaj qhov sib txawv ntawm qhov kub thiab txias, thiab kev nkag siab txog cov khoom ntawm cov ntaub ntawv no yog qhov tseem ceeb rau kev txiav txim siab seb lub txiv kab ntxwv lub voj voog zoo li cas rau qhov kub thiab txias.
PVC rwb thaiv tsev: PVC yog ib qho ntawm cov khoom siv rwb thaiv tsev feem ntau siv rau cables. Thaum nws muaj kev ruaj khov thiab siv tau zoo, PVC-insulated cables feem ntau muaj qhov kub ntawm ib ncig ntawm -15 degree txog 70 degree rau kev ua haujlwm tas mus li. Hauv qhov chaw txias, PVC tuaj yeem ua kom tawv thiab tawv, ua rau nws tsis haum rau qhov kub thiab txias. Txawm li cas los xij, PVC feem ntau yog siv nyob rau hauv cov huab cua txias los yog ib puag ncig nrog tsawg heev rau qhov txias txias.
XLPE rwb thaiv tsev: Hla-txuas polyethylene (XLPE) muaj kev ua tau zoo dua hauv cov mob khaub thuas piv rau PVC. XLPE cables paub txog lawv qhov hloov pauv tau yooj yim thiab ua haujlwm rau qhov kub thiab txias, nrog rau kev khiav hauj lwm ntawm li -40 degree mus rau 90 degree . XLPE feem ntau tiv taus qhov txias txias dua li PVC, ua rau nws muaj kev xaiv zoo dua rau qhov kub thiab txias. Qhov no ua rau nws tsim nyog rau cov ntawv thov nyob rau hauv cov chaw ua haujlwm txias lossis qhov chaw sab nraum zoov raug rau cov xwm txheej khov.
Rwb thaiv tsev: Roj hmab-raws li cov ntaub ntawv rwb thaiv tsev, xws li EPDM (ethylene propylene diene monomer) thiab SBR (styrene-butadiene roj hmab), tuaj yeem hloov tau yooj yim txawm tias nyob rau hauv txias txias. Cov ntaub ntawv no feem ntau yog siv rau hauv cov cables hloov tau yooj yim tsim rau ib puag ncig uas xav tau kev hloov pauv siab, txawm tias nyob rau hauv qhov chaw qis. Roj hmab rwb thaiv tsev feem ntau yog ntsuas rau qhov kub thiab txias qis li -40 degree thiab tuaj yeem tswj tau nws qhov yooj yim thiab kev ua tau zoo hauv qhov txias txias.
Rau cov ntawv thov kub qis heev, cables nrog silicone roj hmab rwb thaiv tsev, uas tuaj yeem tiv taus qhov kub thiab txias li -60 degree, yuav tsum tau. Cov cables no tshwj xeeb tsim los siv rau hauv qhov chaw txias heev, xws li kev teeb tsa sab nraum zoov hauv cov huab cua arctic.
2. Outer Jacket thiab Environmental Resistance
Lub tsho sab nrauv ntawm lub txiv kab ntxwv lub voj voog ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv cov khoom sab hauv ntawm lub cable los ntawm ib puag ncig kev puas tsuaj, nrog rau cov dej noo, puas, thiab hluav taws xob UV. Cov ntaub ntawv zoo li PVC, TPE (thermoplastic elastomer), thiab roj hmab feem ntau yog siv rau cov tsho sab nrauv.
PVC Jackets: Thaum PVC yog qhov ruaj khov thiab tiv taus rau feem ntau ib puag ncig kev ntxhov siab, nws tuaj yeem ua rau qhov kub thiab txias, tshwj xeeb tshaj yog thaum raug txias heev. Qhov no tuaj yeem ua rau tawg ntawm lub tsho sab nrauv thiab muaj kev pheej hmoo ntawm kev ya raws. TPE thiab roj hmab tsho yog hloov tau yooj yim dua thiab ruaj khov nyob rau hauv txias txias piv rau PVC, thiab lawv feem ntau yog siv rau cables raug rau qhov txias txias.
Moisture Resistance: Rau cov ntawv thov uas lub cable raug rau qhov txias thiab ntub dej, cables nrog cov tsho tiv thaiv ya raws yog qhov tseem ceeb. Cov ntaub ntawv tsis muaj dej pab tiv thaiv kom tsis txhob muaj dej nkag mus rau hauv lub cable, uas tuaj yeem ua rau muaj kev puas tsuaj rau cov rwb thaiv tsev lossis cov khoom siv hluav taws xob. EPDM thiab cov tsho roj hmab feem ntau yog siv rau sab nraum zoov thiab kev lag luam cables hauv qhov chaw txias.
3. Flexibility nyob rau hauv qhov chaw txias
Raws li tau hais ua ntej, qhov kub qis tuaj yeem ua rau cov cables ua kom nruj, ua rau lawv nyuaj rau kev ua haujlwm nrog thiab nruab. Flexible cables yog qhov tseem ceeb nyob rau hauv ib puag ncig uas cov cables yuav tsum tau khoov los yog taug kev ncig obstacles. Stranded conductor cables, xws li txiv kab ntxwv ncig cables, feem ntau muab kev hloov pauv ntau dua li cov khoom siv hluav taws xob, uas yog qhov zoo dua hauv qhov chaw txias. Tsis tas li ntawd, cov kab hluav taws xob nrog cov roj hmab rwb thaiv tsev lossis TPE lub tsho zoo li yuav tswj tau zoo dua nyob rau hauv qhov kub thiab txias piv rau cov PVC rwb thaiv tsev.
4. Ua raws li cov qauv thiab cov ntawv pov thawj
Kev ua tau zoo ntawm cov kab hluav taws xob hauv cov kab hluav taws xob hauv qhov chaw kub qis tuaj yeem ua kom ntseeg tau los ntawm kev xaiv cov cables uas ua tau raws li cov qauv kev nyab xeeb thiab cov ntawv pov thawj kev ua haujlwm. Hauv Australia thiab New Zealand, cables yuav tsum ua raws li cov qauv xws li SAA daim ntawv pov thawj, Australia cov qauv, thiab AS/NZS 5000.1, uas tswj kev tsim, kev tsim kho, thiab kev sim cov cables rau kev nyab xeeb thiab kev ua haujlwm.
SAA Certificate: Daim ntawv pov thawj SAA ua kom ntseeg tau tias cov cable tau raug sim thiab ua tau raws li cov qauv kev nyab xeeb, suav nrog cov ntsuas kub.
Australia Standards: Australia tus qauv qhia txog kev ua haujlwm ntawm cov khoom siv hluav taws xob, suav nrog lawv qhov ntsuas kub thiab cov khoom siv.
AS/NZS 5000.1: Cov qauv no muab cov lus qhia rau kev tsim thiab kev tsim cov cables siv nyob rau hauv vaj tse thiab kev lag luam, kom ntseeg tau tias lawv muaj kev nyab xeeb thiab txhim khu kev qha hauv ntau qhov chaw kub.
Los ntawm kev xaiv cov kab hluav taws xob uas ua raws li cov qauv no, cov neeg siv tuaj yeem ua kom ntseeg tau tias lawv cov kab hluav taws xob cov kab hluav taws xob yuav ua tau zoo nyob rau hauv qhov kub thiab txias thiab ua tau raws li qhov yuav tsum tau muaj kev nyab xeeb thiab kev ua haujlwm zoo.