General kev piav qhia thiab yooj yim ntau ntau yam VVG Hlau

Lub cable (hlau) VVG muaj conductors, ua los ntawm cov tooj liab thiab coated nrog ib tug txheej ntawm PVC. Nws muaj ib tug ca zoo thiab nyob rau hauv Feem ntau yog siv rau kis hluav taws xob lub zog nrog nws cov tom ntej tis rau ntau yam nyob ruaj ruaj khoom. Nominally nyob no qaum rau cov voltage txog ib kilomatt. Ib txhia hom ua hauj lwm ntau dua cov nqi. Qhov no cable yuav pw nyob rau hauv qhuav tej yam kev mob, thiab nyob rau hauv cov neeg uas yog yus muaj los ntawm cov pwm. Feem ntau nyob ntawm tej VVG yuav muaj nyob rau hauv tshwj xeeb cable thawv, du thiab txawm tawm sab nraud. Nws yuav tsum tau muab sau tseg hais tias lawv yuav tsum tso nyob rau hauv kab rov tav, inclined thiab ntsug kev, thiab nyob rau hauv qhov chaw uas yog yus muaj los ntawm theem ntawm kev co. Lub tsuas qhov chaw uas nws yog tsis txaus siab mus rau nteg ib tug cable - nws underground. Lub ntsiab thiab feem ntau hlau VVG piav hauv qab no.

Cable qauv VVG-P ng

Txhua tus tub ntxhais yog khoom thiab muaj ib tug yeej zoo lawm. Nws nominal tus ntoo khaub lig-section yuav ua tau mus txog 16 square millimeters. PVC yas yog siv rau qhov siv thiab ua rwb thaiv tsev. Nws yuav tsum tau muab sau tseg tias sheath neeg conductors muaj ib tug txawv coloring. Sab nraud pob distinguished los ntawm nws uas tsis muaj flammability, thiab nyob rau hauv Feem ntau muaj ib tug dawb xim. Lub gasket yog pom zoo nyob rau hauv ib tug kub xws li los ntawm 15 mus rau 35 degrees Celsius thiab cov av noo 98%. Lub hwj chim no cable raws li nws cov lwm hom, muaj ib tug ca tsim. Nta nyob ntawm tej VVG-P ng cia mus thov nws nyob rau ib tug ncaj high nqi ntawm lim.

Cable VVG-P ng LS

Qhov no zoo sib txawv ntawm cov, tsis tshua muaj flammability, thiab encoding LS (Low Haus luam yeeb) ntawd hais tias cov khoom no muaj ib tug tsis tshua muaj qib roj emission thiab haus luam yeeb. Txij li thaum nws tsis yog nplaim taws retardant, nws yog feem ntau siv rau cov ceevxwm uas hluav taws xob nyob rau hauv lub cable haus luam yeeb, lug thiab sib qhov twg AC nyob voltage yog los ntawm 660 V 1000 V ntawm 50 Hz.

Tus qauv ntawm cov leeg

Nyob rau hauv hlau VVG-P LS ng hlau, electrically conductive, ua los ntawm cov tooj liab thiab tej zaum yuav muaj ib zaug xwb-hlau los yog ib tug multiwire. Yog hais tias stranding ob los yog peb cores, ces lawv tag nrho cov muaj tib lub ntoo khaub lig-section, thiab yog hais tias cov plaub - ces kawg ib tug, nws yog me me thiab. Nws yog siv rau grounding thiab yog hu ua zero. Nyob rau hauv lub chaw ua khoom ntawm rwb thaiv tsev siv tshwj xeeb PVC muaj pes tsawg leeg uas yog yus muaj los ntawm siab kuj mus combustion. Lub plhaub ntawm txhua tus tseem ceeb muaj ib tug txawv xim, nyob rau hauv cov ntaub ntawv no zero yog yeej ib txwm xiav. Lub thickness ntawm lub puab txheej yog tsis pub tsawg tshaj peb millimeters. Nws yuav tsum tau muab sau tseg tias cov Team sib nruab nrab ntawm tus conductors thiab rwb thaiv tsev yog lawm ua tus sau PVC compositions muab therefrom.

kev yam ntxwv

Assembling thiab pw ntawm no hlau VVG tsum tau ua tsis muaj preheating cov khoom ntawm ib tug kub tsis tsawg tshaj li rho tawm tau kaum tsib degrees. Rau cov lag luam tso cai kub nyob rau hauv ntau -50 rau +50 degrees. Raws li rau nonincendive, ces qhov no cable teem txwv kub conductive nyob rau hauv tus nqi ntawm cov plaub puas degrees.