Raws li cov xov hlau tsis tshua muaj hluav taws xob thiab cov cables, lawv feem ntau muab faib ua ob pawg raws li lawv lub hom phiaj: cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob. Nyob rau hauv kev tsim kho hlau, nws yog ntuj roj hmab insulated woven asphalt coated hlau thaum ntxov li 1960s. Txij li thaum xyoo 1970s, nws tau hloov tag nrho los ntawm PVC yas xov hlau. Qhov xwm txheej hauv cov khoom siv hluav taws xob zoo ib yam li hauv cov kab kev tsim kho, uas yog thawj coj los ntawm cov roj hmab ntuj, tab sis tau hloov pauv los ntawm PVC cables hauv xyoo 1970s. Qhov teeb meem no yog ob qho tib si unscientific thiab tsis tsim nyog nyob rau hauv cov nqe lus ntawm cable kev lag luam thiab cov neeg siv kev xaiv. Niaj hnub no, ntau yam khoom siv hluav taws xob cables, tshwj xeeb tshaj yog cov txuas txuas uas yuav tsum tau ua rau cov khoom siv hauv tsev zoo nkauj, yuav tsum tau hloov qhov xwm txheej tam sim no ntawm kev tswj hwm los ntawm PVC yas thiab hloov lawv nrog roj hmab cables. Vim tias cov roj hmab cables muaj qhov tshwj xeeb zoo xws li softness, zoo txhais tes, tsis ntshai ntawm tshav kub, thiab tsis melting, lawv yog incomparable rau yas cables. Vim nws muaj ntau yam zoo uas cov roj hmab hluavtaws tsis muaj, CPE tuaj yeem siv dav hauv kev tsim cov hlua hluav taws xob hauv tsev thiab lwm cov khoom siv hluav taws xob hloov tau yooj yim. CPE muaj cov khoom siv dav dav, xws li nplaim taws retardancy zoo heev thiab cov roj ua haujlwm siab, lub cev thiab cov khoom siv kho tshuab (xws li cov khoom siv kho tshuab), cov cua sov zoo tiv thaiv, ozone kuj, huab cua tsis kam, hluav taws xob zoo, thiab kev ua haujlwm zoo. Nws tuaj yeem siv rau hauv cov khoom siv roj hmab dav dav, thiab cov khoom siv roj hmab tsis tuaj yeem ua rau scorching. CPE raw cov ntaub ntawv yuav tsis deteriorate tom qab ob peb xyoos ntawm kev cia, roj hmab cov ntaub ntawv nrog vulcanizing neeg ua hauj lwm yuav khaws cia rau 1-2 xyoo tsis muaj deterioration nyob rau hauv zoo cia tej yam kev mob.
Hauv cov ntsiab lus, daim ntawv thov ntawm CPE hauv kev lag luam hauv online cable, uas yog, hloov CR nrog CPE, yog ib qho qauv hauv kev lag luam cable online. Qhov no tsis tsuas yog txo cov kev xav tau ntawm CR, txo cov nqi ntawm cov khoom siv cable, txhim kho cov txiaj ntsig kev lag luam ntawm kev lag luam cable, tab sis kuj tseem muaj txiaj ntsig zoo hauv kev txhim kho qib ntawm cov khoom siv cable thiab ua tiav kev sib txawv ntawm ntau hom cable.
Post lub sij hawm: Nov-06-2023
