Cable (xaim) VVG muaj cov cores ua los ntawm tooj liab thiab them nrog ib txheej ntawm PVC. Nws muaj cov duab tiaj tus thiab feem ntau yog siv los xa cov hluav taws xob hluav taws xob nrog nws qhov kev faib tawm ntxiv hauv ntau qhov chaw ruaj khov. Cov hlua no nominally ntsuas rau voltages txog li ib kilowatt. Qee lub npe ua haujlwm ntawm tus nqi siab dua. Xws li ib tug cable yuav muab tso rau ob qho tib si nyob rau hauv qhuav chav tsev thiab nyob rau hauv cov uas yog yus muaj los ntawm high humidity. Feem ntau, VVG cov xov hlau tuaj yeem pom nyob rau hauv tshwj xeeb cable thaiv, hla hla, thiab txawm nyob hauv qhov chaw qhib. Nws yuav tsum tau muab sau tseg tias lawv tso yog tso cai nyob rau hauv kab rov tav, inclined thiab ntsug txoj kev, raws li zoo raws li nyob rau hauv cov chaw uas yog yus muaj los ntawm ib tug nce qib ntawm kev co. Qhov tsuas yog qhov chaw uas nws tsis xav kom nteg xws li ib tug cable yog underground. Cov xov hlau tseem ceeb thiab feem ntau VVG tau piav qhia hauv qab no.
VVG-P ng cable structure
Txhua tus tub ntxhais ntawm no yog ib-xaim thiab muaj ib puag ncig. Nws qhov nominal hla ntu tuaj yeem ncav cuag 16 millimeters square. Siv los ua rwb thaiv tsevpolyvinyl chloride yas. Nws yuav tsum raug sau tseg tias lub plhaub ntawm tus kheej cores muaj xim sib txawv. Lub pob sab nrauv yog tus cwj pwm los ntawm kev txo cov nplaim taws thiab feem ntau muaj xim dawb. Kev tso dej yog pom zoo kom ua tiav ntawm qhov kub ntawm qhov kub ntawm 15 txog 35 degrees ntawm tshav kub thiab av noo mus txog 98%. Lub hwj chim cable no, zoo li nws lwm hom, muaj cov qauv tsim. Cov yam ntxwv ntawm VVG-P ng xaim tso cai rau nws siv ntawm qhov hluav taws xob siab ncaj.
Cable VVG-P ng LS
Qhov ntau yam no yog tus cwj pwm los ntawm qhov txo qis kev phom sij, thiab LS (Low Smoke) coding qhia tias cov khoom muaj roj tsawg thiab cov pa luam yeeb. Txij li thaum nws tsis kis combustion, nws feem ntau yog siv rau kev faib hluav taws xob hluav taws xob hauv chav cable, cov qauv thiab kev teeb tsa, qhov twg qhov hloov pauv qhov hluav taws xob yog los ntawm 660 V txog 1000 V ntawm zaus ntawm 50 Hz.
Structure of veins
Cov xaim VVG-P ng LS muaj cov tub ntxhais uas siv hluav taws xob tam sim no, yog ua los ntawm tooj liab thiab tuaj yeem ua ib-xaim lossis ntau-xaim. Yog hais tias muaj ob los yog peb cores nyob rau hauv twist, ces lawv tag nrho cov muaj tib seem hla, thiab yog hais tias muaj plaub, ces lub xeem muaj ib tug me me. Nws ua haujlwm rau grounding thiab hu ua xoom. Hauv kev tsim cov rwb thaiv tsev, ib qho tshwj xeeb polyvinyl chloride muaj pes tsawg leeg yog siv, uas yog tus cwj pwm los ntawm kev ua haujlwm siab rau combustion. Lub plhaub ntawm txhua tus tub ntxhais muaj xim sib txawv, thaum lub xoom yog ib txwm xiav. Lub thickness ntawm lub puab txheej yog tsawg kawg yog peb millimeters. Nws yuav tsum raug sau tseg tias qhov khoob ntawm cov cores thiab cov rwb thaiv tsev ntawm PVC muaj pes tsawg leeg tau sau nrog nws.
Specifications
Kev teeb tsa thiab tso ntawm VVG hlau no tau tso cai yam tsis muaj preheating ntawm qhov kub ntawm qhov tsawg kawg yog rho tawm kaum tsib degrees. Rau kev ua haujlwm, qhov ntsuas kub tau tso cai nyob rau hauv thaj tsam ntawm -50 txog +50 degrees. Hais txog qhov tsis muaj hluav taws xob, rau cov cable no, qhov kub siab tshaj plaws ntawm cov cores conductive yog teem rau plaub puas degrees.
