Peb paub tias cov cables sib txawv muaj qhov sib txawv thiab yog li cov qauv sib txawv. Feem ntau, lub cable yog tsim los ntawm tus neeg xyuas pib, txheej thaiv, txheej rwb thaiv tsev, txheej sheath, thiab txheej armor. Nyob ntawm cov yam ntxwv, cov qauv sib txawv. Txawm li cas los xij, ntau tus neeg tsis paub meej txog qhov sib txawv ntawm cov rwb thaiv tsev, tiv thaiv, thiab cov txheej txheem hauv cov cables. Cia peb rhuav tshem lawv kom nkag siab zoo dua.
(1) Rwb thaiv tsev txheej
Cov txheej rwb thaiv tsev nyob rau hauv ib lub cable feem ntau muab rwb thaiv tsev ntawm tus neeg xyuas pib thiab ib puag ncig ib puag ncig lossis cov neeg nyob ib sab. Nws ua kom ntseeg tau tias cov hluav taws xob tam sim no, hluav taws xob tsis muaj hluav taws xob, lossis cov teeb liab kho qhov muag nqa los ntawm tus neeg xyuas pib tsuas yog kis tau raws tus neeg xyuas pib yam tsis muaj qhov cuam tshuam sab nraud, thaum tseem tiv thaiv cov khoom siv sab nraud thiab cov neeg ua haujlwm. Kev ua tau zoo ntawm cov rwb thaiv tsev ncaj qha txiav txim siab qhov ntsuas hluav taws xob ib lub cable tuaj yeem tiv taus thiab nws lub neej kev pab cuam, ua rau nws yog ib qho tseem ceeb ntawm cov cable.
Cov ntaub ntawv rwb thaiv tsev cable feem ntau tuaj yeem muab faib ua cov ntaub ntawv rwb thaiv tsev yas thiab cov khoom siv roj hmab. Yas-insulated fais fab cables, raws li lub npe qhia, muaj rwb thaiv tsev txheej ua los ntawm extruded plastics. Cov yas muaj xws li Polyvinyl Chloride (PVC), Polyethylene (PE),Hla-Txuas Polyethylene (XLPE), thiab Tsawg Smoke Zero Halogen (LSZH). Ntawm lawv, XLPE yog dav siv nyob rau hauv nruab nrab- thiab high-voltage cables vim nws zoo heev hluav taws xob thiab txhua yam khoom, nrog rau superior thermal aging kuj thiab dielectric kev ua tau zoo.
Rubber-insulated fais fab cables, ntawm qhov tod tes, yog tsim los ntawm cov roj hmab sib xyaw nrog ntau yam additives thiab ua tiav rau hauv rwb thaiv tsev. Cov khoom siv roj hmab feem ntau muaj xws li cov roj hmab-styrene sib tov, EPDM (Ethylene Propylene Diene Monomer roj hmab), thiab roj hmab butyl. Cov ntaub ntawv no yog yoog raws thiab elastic, haum rau nquag txav thiab me me dabtsi yog khoov vojvoog. Hauv kev siv xws li mining, nkoj, thiab cov chaw nres nkoj, qhov chaw ua haujlwm tsis zoo, roj tsis kam, thiab kev yooj yim yog qhov tseem ceeb, cov roj hmab insulated cables ua lub luag haujlwm tsis tuaj yeem hloov.
(2) Sheath Txheej
Lub sheath txheej enables cables hloov mus rau ntau yam kev siv ib puag ncig. Siv cov txheej txheem rwb thaiv tsev, nws lub luag haujlwm tseem ceeb yog los tiv thaiv cov txheej txheem sab hauv ntawm cov kab hluav taws xob los ntawm kev puas tsuaj thiab tshuaj lom neeg corrosion, thaum tseem txhim kho cov neeg kho tshuab lub zog ntawm lub cable, muab tensile thiab compressive tsis kam. Lub sheath ua kom lub cable tiv thaiv los ntawm cov neeg kho tshuab kev nyuaj siab thiab ib puag ncig yam xws li dej, tshav ntuj, lom corrosion, thiab hluav taws kub, yog li tswj kev ruaj ntseg hluav taws xob mus ntev. Qhov zoo ntawm sheath ncaj qha cuam tshuam rau lub neej kev pab cuam ntawm lub cable.
Cov txheej sheath kuj muab hluav taws kub, nplaim hluav taws, roj tsis kam, acid thiab alkali tsis kam, thiab UV tsis kam. Nyob ntawm daim ntawv thov, cov ntaub qhwv tuaj yeem muab faib ua peb yam tseem ceeb: cov hlau nplaum (xws li cov ntaub qhwv sab nrauv), roj hmab / yas sheaths, thiab cov ntaub qhwv sib xyaw. Roj Hmab / yas thiab cov ntaub ntawv sib xyaw tsis tsuas yog tiv thaiv kev puas tsuaj rau cov khoom siv, tab sis kuj muaj kev tiv thaiv dej, nplaim hluav taws, hluav taws kub, thiab kev tiv thaiv corrosion. Nyob rau hauv ib puag ncig hnyav xws li high humidity, underground tunnels, thiab tshuaj nroj tsuag, kev ua tau zoo ntawm cov txheej sheath yog qhov tseem ceeb heev. Cov ntaub ntawv zoo sheath tsis tsuas yog txuas rau cable kev pab cuam lub neej tab sis kuj tseem txhim khu kev ruaj ntseg thiab kev ntseeg siab thaum ua haujlwm.
(3) Txheej Txheej
Lub shielding txheej nyob rau hauv ib tug cable yog muab faib ua puab shielding thiab sab nrauv shielding. Cov khaubncaws sab nraud povtseg no ua kom muaj kev sib cuag zoo ntawm tus neeg xyuas pib thiab rwb thaiv tsev, nrog rau nruab nrab ntawm cov rwb thaiv tsev thiab cov ntaub qhwv sab hauv, tshem tawm cov khoom siv hluav taws xob ntau ntxiv uas tshwm sim los ntawm qhov chaw ntxhib ntawm cov conductors lossis cov txheej sab hauv. Nruab nrab- thiab high-voltage fais fab cables feem ntau muaj cov neeg xyuas pib tiv thaiv thiab rwb thaiv tsev tiv thaiv, thaum qee qhov qis-voltage cables yuav tsis tau nruab nrog cov khaubncaws sab nraud povtseg.
Shielding tuaj yeem yog semi-conductive shielding lossis metallic shielding. Cov ntaub ntawv hlau tiv thaiv muaj xws li tooj liab daim kab xev wrapping, tooj liab hlau braiding, thiab txhuas ntawv ci-polyester puas daim kab xev longitudinal wrapping. Shielded cables feem ntau siv cov qauv xws li twisted khub shielding, pab pawg neeg shielding, los yog tag nrho cov shielding. Xws li cov qauv tsim muaj qhov tsis tshua muaj hluav taws xob tsis zoo, muaj peev xwm sib kis tau zoo, thiab kev ua haujlwm zoo los tiv thaiv kev cuam tshuam, ua kom muaj kev ntseeg tau ntawm kev sib kis tsis muaj zog ntawm cov teeb liab analog thiab ua rau muaj zog electromagnetic cuam tshuam hauv kev lag luam ib puag ncig. Lawv tau siv dav hauv kev tsim hluav taws xob, metallurgy, roj av, chemical industries, rail transit, thiab automated ntau lawm tswj systems.
Raws li kev tiv thaiv cov ntaub ntawv, cov ntaub thaiv sab hauv feem ntau siv cov ntawv hlau lossis cov khoom siv hluav taws xob, thaum cov ntaub thaiv npog sab nrauv yuav muaj cov ntaub thaiv npog los yog tooj liab hlau braiding. Cov ntaub ntawv braiding feem ntau yog tooj liab lossis tinned tooj liab, thiab qee qhov nyiaj-plated tooj liab xov hlau rau kev txhim kho corrosion thiab conductivity. Cov qauv kev tiv thaiv zoo tsim tsis tsuas yog txhim kho hluav taws xob kev ua tau zoo ntawm cov cables tab sis kuj txo cov hluav taws xob hluav taws xob cuam tshuam rau cov khoom nyob ze. Nyob rau niaj hnub no cov khoom siv hluav taws xob thiab cov ntaub ntawv-tsav ib puag ncig, qhov tseem ceeb ntawm kev tiv thaiv yog qhov tseem ceeb.
Hauv kev xaus, cov no yog qhov sib txawv thiab kev ua haujlwm ntawm cable rwb thaiv tsev, tiv thaiv, thiab sheath txheej. IB LUB NTIAJTEB ceeb toom txhua tus neeg tias cov cables muaj feem cuam tshuam rau lub neej thiab kev nyab xeeb ntawm vaj tse. Cov kab hluav taws xob tsis zoo yuav tsum tsis txhob siv; ib txwm qhov chaw los ntawm reputable cable manufacturers.
IB LUB NTIAJ TEB tsom rau kev muab cov khoom siv raw rau cables thiab tau cog lus los muab cov neeg siv khoom nrog cov kev daws teeb meem zoo. Peb cov khoom npog ntau yam rwb thaiv tsev, sheath, thiab shielding cov ntaub ntawv, xws li XLPE, PVC, LSZH, Aluminium Foil Mylar daim kab xev, tooj liab daim kab xev,Mica daim kab xev, thiab ntau dua. Nrog kev ruaj khov zoo thiab kev pabcuam zoo, peb muab kev txhawb nqa zoo rau kev tsim cable thoob ntiaj teb.
Post lub sij hawm: Aug-20-2025