Kev thaiv dej yog qhov tseem ceeb rau ntau daim ntawv thov cable, tshwj xeeb tshaj yog cov siv nyob rau hauv ib puag ncig hnyav. Lub hom phiaj ntawm kev thaiv dej yog txhawm rau tiv thaiv dej los ntawm kev nkag mus rau hauv lub cable thiab ua rau muaj kev puas tsuaj rau cov hluav taws xob conductors sab hauv. Ib txoj hauv kev zoo tshaj plaws kom ua tiav cov dej thaiv yog los ntawm kev siv cov dej thaiv cov yarns hauv kev tsim kho cable.
Dej thaiv cov xov paj feem ntau yog ua los ntawm cov khoom siv hydrophilic uas o thaum nws los rau hauv dej. Qhov o no tsim ib qho thaiv uas tiv thaiv dej los ntawm kev nkag mus rau hauv lub cable. Cov khoom siv feem ntau yog nthuav tau polyethylene (EPE), polypropylene (PP), thiab sodium polyacrylate (SPA).
EPE yog qhov tsawg-ceev, high-molecular-phaus polyethylene uas muaj dej tau zoo heev Thaum EPE fibers nkag mus rau hauv dej, lawv nqus cov dej thiab nthuav dav, tsim kom muaj cov dej tsis sib haum nyob ib puag ncig cov neeg siv khoom. Qhov no ua rau EPE yog cov khoom siv zoo heev rau cov dej thaiv cov xov paj, vim nws muab kev tiv thaiv qib siab tiv thaiv dej nkag.
PP yog lwm cov khoom siv uas feem ntau siv rau. PP fibers yog hydrophobic, uas txhais tau hais tias lawv tua cov dej. Thaum siv nyob rau hauv ib tug cable, PP fibers tsim ib tug barrier uas tiv thaiv dej los ntawm nkag mus rau hauv lub cable. PP fibers feem ntau yog siv ua ke nrog EPE fibers los muab ib txheej ntxiv ntawm kev tiv thaiv dej nkag.
Sodium polyacrylate yog superabsorbent polymer uas feem ntau siv. Sodium polyacrylate fibers muaj peev xwm nqus dej, uas ua rau lawv muaj kev cuam tshuam zoo tiv thaiv dej nkag. Cov fibers nqus dej thiab nthuav dav, tsim kom muaj dej tsis sib haum nyob ib ncig ntawm cov neeg xyuas pib.
Cov dej thaiv cov yarns feem ntau yog muab tso rau hauv lub cable thaum lub sijhawm tsim khoom. Lawv feem ntau ntxiv raws li ib txheej nyob ib ncig ntawm cov hluav taws xob conductors, nrog rau lwm yam khoom xws li rwb thaiv tsev thiab tsho. Cov khoom tau muab tso rau hauv qhov chaw tsim nyog nyob rau hauv lub cable, xws li nyob rau hauv lub cable xaus los yog nyob rau hauv cov cheeb tsam uas yog nquag dej ingress, muab lub siab tshaj plaws kev tiv thaiv ntawm dej puas.
Hauv kev xaus, dej thaiv cov xov paj yog ib qho tseem ceeb hauv kev tsim kho cable rau cov ntawv thov uas xav tau kev tiv thaiv dej nkag. Kev siv cov dej thaiv cov xov paj, ua los ntawm cov ntaub ntawv xws li EPE, PP, thiab sodium polyacrylate, tuaj yeem muab kev tiv thaiv zoo tiv thaiv dej, ua kom muaj kev ntseeg siab thiab siv tau ntev ntawm lub cable.
Post lub sij hawm: Mar-01-2023