Qhov sib txawv tseem ceeb ntawm sab hauv tsev network cable thiab sab nraum zoov network cable tsis yog tsuas yog cov yam ntxwv sib txawv, tab sis kuj muaj cov haujlwm sib txawv siv tib lub sijhawm. Txheeb ze hais lus, hnav tsis kam, tensile thiab compression kev ua haujlwm ntawm sab nraum zoov network cables zoo dua li sab hauv tsev network cables, feem ntau vim tias nws nyuaj rau xaim sab nraud ntau dua li thaiv sab hauv tsev.
Qhov sib kis tau tiag tiag ntawm sab hauv tsev network cable thiab sab nraum zoov network cable ntawm cov khoom siv tib yam yuav luag zoo ib yam. Piv txwv li, 0.48 tsis muaj tooj liab tsis muaj tooj liab sab hauv tsev network cable thiab 0.48 oxygen-free tooj liab sab nraum zoov network cable, qhov tsis kam kuaj ntawm 300 meters tsis txawv ntau, qhov tsis kam dav yog 28 ohms -33 ohm ntab (qhov sib txawv ib txwm.) 0.48 oxygen -free tooj liab network cable feem ntau tuaj yeem xa mus txog 120 meters.
Txhua tus tooj liab hais txog cov khoom siv hauv lub network cable. Txhua tus tooj liab hais txog kev rov ua dua tshiab ntawm tooj liab. Kev lag luam tseem hu ua bronze mesh cable. Cov tooj liab purity ntawm tooj liab mesh cable tsis siab, qhov ua haujlwm siab, thiab kev sib kis kis tau luv. Nws yog qhov tsim nyog rau siv hauv cov haujlwm ib txwm muaj.
Tag nrho-tooj liab sab nraum zoov network cable thiab tag nrho-tooj liab sab hauv tsev network cable yog tib yam hauv cov khoom siv tus neeg xyuas pib, thiab kev tiv thaiv tsis txawv ntau, feem ntau yog vim qhov sib txawv hauv cov qauv.
Cov kab hluav taws xob sab nraum zoov muaj ob daim tawv nqaij, tawv nqaij sab nrauv yog ua los ntawm cov dej dub thaiv PE cov khoom, thiab cov tawv nqaij sab hauv yog ua los ntawm PVC cov tawv nqaij tsis muaj dej. Lub luag haujlwm tseem ceeb ntawm ob txheej txheej kab dej yog tsis muaj dej, tiv tshav ntuj, muaj zog thiab muaj zog. Nws yog qhov tsim nyog rau siv nyob rau ib puag ncig sab nraum zoov, yoog raws qhov hloov pauv huab cua sab nraud, tuaj yeem tiv thaiv cov neeg sab hauv zoo dua thiab txhim kho kev tiv thaiv oxidation.
Cov xov hluav taws xob sab hauv tsev tsuas muaj ib txheej txheej ntawm cov tawv nqaij, thiab txheej txheej ntawm cov tawv nqaij yog ua los ntawm cov khoom siv PVC, uas muaj lub zog tensile, tsis muaj lub luag haujlwm tiv thaiv dej thiab tiv tshav ntuj, thiab tsis haum rau thaiv sab nraum zoov , tab sis tsuas yog tsim rau thaiv sab hauv tsev. Cov tawv nqaij xaim yog qhov muag muag, tuaj yeem hloov pauv mus rau sab hauv tsev, thiab tswj kev yoog raws ntawm sab hauv tsev mus rau qhov ntau dua. Yog li ntawd, thaum xaim los ntawm cov yeeb nkab, xyuam xim tiv thaiv cov tawv nqaij sab nraud ntawm sab hauv tsev network cable, tshwj xeeb tshaj yog thaum rub cov xaim, tsis txhob siv lub zog ntau dhau, uas yog ib qho yooj yim los rub cov tub ntxhais tsis zoo.
Yeej tsis muaj qhov sib txawv ntawm kev sib kis ntawm sab nraum zoov-tooj liab cable thiab sab hauv tsev-tooj liab cable. Kev tiv thaiv kev ntsuas tsis pub dhau 0.5 qhov tooj liab tsis pub dhau 300 meters yog li 105-110 ohms, thiab qhov kis nrug deb feem ntau yog li 80 meters.
Feem ntau hais lus, ob lub xov tooj cua sab hauv thiab sab nraum zoov tuaj yeem siv ua cov kab hluav taws xob hauv phab ntsa, tab sis sab hauv tsev txuas hluav taws xob sib txuas tau nyuaj siv los ua cov phab ntsa txuas hluav taws xob ntau dua li cov hluav taws xob sab nraum zoov. Cov kab thaiv phab ntsa faus thiab cov hlua faus yog qhov nyuaj dua li lwm txoj haujlwm thaiv. Nws yog ib qho yooj yim kom ua rau cov tawv nqaij sab nrauv ntawm lub network cable thaum thaiv thiab ua rau lub network tsis ua haujlwm.
Thaum ua lub faus phab ntsa network cable rau sab hauv tsev network cable, koj yuav tsum ntsuas ntsuas los tiv thaiv kab thaiv kab hlau. Txhawm rau tswj kom muaj kev hloov pauv yooj yim ntawm cov xov hluav taws xob sab hauv, sab hauv tsev txuas hluav taws xob tsuas muaj ib txheej ntawm PCV tawv nqaij thiab tsis muaj tawv nqaij sab nraud dua li sab nraum zoov network cable. Kev tiv thaiv tsis tau dej thiab puas yog tsis zoo li sab nraum zoov network cable.
Txhawm rau hloov kho rau huab cua sab nraud hloov pauv, sab nraum zoov network cable tau ua los ntawm ob txheej txheej cable. Cov txheej sab nraud yog ua los ntawm cov dej dub thaiv PE tawv, thiab sab hauv kab yog PVC tawv tsis muaj dej. Cov txheej txheem txheej ob txheej tiv thaiv cov dej ua pa nkag mus rau hauv lub network cable. sab hauv. Thiab nws ua lub luag haujlwm ntawm lub zog tensile thiab kev sib zog ua haujlwm, thiab nws tsis yooj yim koom nrog cov tub ntxhais tooj liab thiab ua rau muaj kev cuam tshuam hauv network.
Feem ntau hais lus, cov yeeb nkab xov ntawm cov phab ntsa faus network txuas tau ua tiav, thiab cov xov tooj sib txuas feem ntau tsis cuam tshuam los ntawm cov pa dej, tab sis nws tsis tuaj yeem lav tau 100%.
Rau faus phab ntsa network txuas, txawm tias koj xaiv cov xov hluav taws xob sab hauv tsev lossis sab nraum zoov network, cov khoom siv ntawm cov xov tooj sib txuas yuav tsum tau ua los ntawm cov khoom siv tooj liab tsis muaj oxygen. Txhua yam khoom siv tooj liab muaj qhov ua haujlwm siab. Raws li faus phab ntsa network cable, nws nyuaj rau xa cov network ib txwm muaj, thiab tooj liab-clad nyiaj thiab lwm cov network txuas kuj tseem yooj yim rau oxidize thiab tsis tuaj yeem hloov pauv ib puag ncig sab hauv phab ntsa. Cov tooj liab tsis muaj oxygen muaj qhov ua haujlwm qis, ruaj khov kis tau tus mob, thiab tiv taus oxidation siab. Nws raug nquahu kom xaiv tooj liab tsis muaj oxygen raws li cov phab ntsa faus rau hauv network.
Tib lub sijhawm, lub network cable yuav tsum xaiv cov khoom tshiab sab hauv thiab sab nraud. Cov khoom siv tshiab sab hauv thiab sab nraud txhais tau hais tias cov tawv nqaij sab nraud ntawm lub network cable tau ua los ntawm cov khoom siv PVC, thiab daim tawv nqaij sab hauv yog ua los ntawm cov khoom PE. (Ib txheej ntxiv ntawm PE tawv dub tau ntxiv rau txheej sab nrauv ntawm sab nraum zoov network cable). Qhov zoo ntawm cov khoom siv tshiab zoo dua li cov khoom thib ob. Nws muaj lub zog tensile muaj zog thiab tuaj yeem tiv thaiv cov tub ntxhais tooj liab tau zoo dua, thiab nws tsis yooj yim rau tawg cov tub ntxhais tooj liab.
Txhua lub network cable yuav tsum tau tho kom zoo thaum lawv faus rau hauv phab ntsa. Kev ua haujlwm tho qhov ntawm lub network cable yog txhawm rau tiv thaiv lub network cable zoo dua los ntawm kev puas tsuaj yooj yim hauv phab ntsa. Cov tawv nqaij sab nraud ntawm kab ntawv feem ntau yog ua los ntawm cov khoom siv PVC. Tom qab cov cement tau hydrated, nws dhau mus ua alkaline thiab ua ncaj qha rau ntawm txheej rwb thaiv tsev ntawm lub network cable. Tom qab lub sijhawm ntev, txheej rwb thaiv tsev yog qhov ua rau laus, embrittlement, tawg, thiab lwm yam, uas ua rau tsis xa cov cim ib txwm muaj.
