Koj puas tau pom tias thaj cables yog tag nrho qhwv hauv ntau lub tsho? Cov hlua khi cov hlua hluav taws xob no yog qhov tseem ceeb ua haujlwm raws li kev tiv thaiv rau sab hauv cable. Txawv lub tsho sib txawv tuaj yeem cuam tshuam rau cov kev siv tib yam nkaus. Paub txog qhov sib txawv ntawm cov hlua khau xov tooj yuav pab koj txiav txim siab zoo thaum xaiv cov xaim hluav taws xob. Cov khoom siv ntau ntau tuaj yeem ua tau raws li cov hlua cable kom paub daws teeb meem sib txawv. Kab lus no tsuas nthuav qhia qee hom kev soj ntsuam thiab tshawb xyuas qhov txawv txav lawv.
PVC (polyvinyl chloride) yog cov hom khaub tsho uas ib txwm siv dav dav rau cov thaj. Tus nqi qis thiab kev tsim khoom yooj yim ua rau nws muaj npe thoob ntiaj teb. Koj tuaj yeem pom cov tsho PVC nyob yuav luag txhua qhov chaw thaum thaj cables siv. PVC cov khoom siv yog cov dej noo tiv taus zoo heev uas muaj peev xwm ua kom zoo nkauj rau qhov chaw noo noo. Tab sis nws tseem muaj qee qhov tsis xws luag uas yuav txwv qhov kev pab lub neej. Piv txwv li, cov khoom siv PVC feem ntau dhau los ua qhov tsis yooj yim nyob rau hauv lub hnub ncaj qha thiab nws qhov hloov tau yooj yim thaum ntau dua kev xav tau.
LSZH (tsis muaj pa taws tsawg xoom halogen) yog cov khoom siv uas muab cov pa roj tsw qab thiab xeb hauv qab hluav taws. Nws zoo heev ua rau muaj qhov pom kev siab thiab qis ua pa puas thaum hluav taws xob hla hla qhib hluav taws lossis luv Circuit Court txhaum. LSZH cable lub tsho muaj feem ntau siv rau thaj chaw uas cov pa luam yeeb ua rau qhov tseem ceeb tshaj plaws, xws li lub dav hlau, tsheb ciav hlau, nkoj, lub tsev thiab lwm yam.
OFNP (optical fiber nonconductive plenum) tau teev tseg los ntawm NFPA (Lub Chaw Tiv Thaiv Hluav Taws Xob), uas tsis muaj cov khoom siv hluav taws xob sab hauv cov hlua hluav taws xob. Qhov hom ntawm lub tsho tiv no kab hluav taws xob muaj peev xwm tiv thaiv hluav taws thiab tawm pa taws tsawg. OFNP cable yog qhov siab tshaj qhov hluav taws kub fiber ntau cable thiab tsis muaj hloov. Cov chaw suav nrog ducts, plenums, thiab lwm qhov chaw hauv lub tsev airflow tsim nyog rau kev teeb tsa.
PUR (polyurethane) cable lub tsho yog cov khoom siv thermoplastic uas feem ntau siv rau hauv ib puag ncig hnyav. Nws muab ob qho tib si kev ua hauj thev thiab tshuaj tiv thaiv. Yog li, PUR cable tuaj yeem ntsia tau rau cov ntawv thov kev lag luam uas muaj zog tiv thaiv txheej xav tau. Kuj, nws yooj ua rau nws tus kheej yog cov khoom siv zoo rau retractile thaj cables nyob rau hauv kev hloov ua ntu zus. Tab sis nws yog qhov kim tshaj li cov xov cable ntau.
PTFE (polytetrafluoroethylene) sheath yog cov khoom siv fluoropolymer hluavtaws uas tsim nyog rau cov huab ib puag ncig. Nws yog qhov ruaj khov heev nyob rau hauv ob qho tib si siab thiab qis kub thiab tsis tuaj yeem cuam tshuam los ntawm feem ntau cov roj, roj thiab dej. Qhov no zoo ntawm cov hlua khi dav siv dav hauv kev siv tub rog, huab cua, coaxial, thiab cov cuab yeej siv hlau txuas.
Cov tsho khau roj hmab yog qhov kev xaiv zoo rau kev siv lub zog siv hluav taws xob hauv qhov chaw sab nraum zoov lossis chaw ntub. Nws muaj cov kev ua tau zoo dua li cov ntaub ntawv yas nyob rau hauv yooj, kub tsis kam thiab ua tau ntev. Lwm yam kev thov xws li kev nqus cov submersible twj, kev tswj hauv cov hluav taws xob, lub cev muaj zog thiab cov tshuab cuam tshuam, kev tsim kho khoom siv, thiab lwm yam.
Silicone yog cov roj hmab hluavtaws nrog ntau dua kev yoog thiab muaj zog tiv taus huab kub thiab tshuaj lom neeg. Ntawm chav kawm, nws tsis muaj kev ua haujlwm siab npaum li PTFE. Tab sis nrog tus yam ntxwv tsis tshua muaj neeg, silicone cable sheath yog qhov zoo tshaj plaws rau cov ntawv thov uas muaj ntau cov xov hlau khoov. Thiab thaum nws ntsib hluav taws, tsuas yog haus luam yeeb me me uas yuav ua rau ib puag ncig zoo.
Tom qab nyeem cov ntawv no, tej zaum koj yuav tau txais ib lub tswv yim hais txog cov hom hlua khawm tam sim no thiab qhov chaw uas lawv yuav tsum tau siv. Thiab qhov tseeb, yog tias koj xav pom lub tsho tsim nyog tshaj plaws rau koj lub phiaj xwm, kev paub cov ntaub ntawv no tseem tsis tau pom txaus. Tab sis kuv vam tias qhov tsab xov xwm no tuaj yeem qhia koj kom nkag siab qhov tseem ceeb ntawm kev xaiv lub tsho txoj hlua khi rau hauv koj daim ntawv thov yav tom ntej.
