Xov hlau THW yog ib yam xov hlau hluav taws xob uas siv tau ntau yam, thiab muaj qhov zoo ntawm kev tiv taus kub thiab txias, tiv taus hnav, muaj peev xwm hluav taws xob ntau, thiab yooj yim rau kev teeb tsa. Xov hlau THW siv dav hauv cov kab hluav taws xob hauv tsev, cov kab lag luam, cov kab hluav taws xob saum toj, thiab cov kab hauv av, thiab nws txoj kev ntseeg tau thiab kev txuag hluav taws xob tau dhau los ua ib qho ntawm cov ntaub ntawv xov hlau nyiam hauv kev tsim kho thiab kev lag luam hluav taws xob.
THW hlau yog dab tsi
THW hlau yog ib hom xov hluav taws xob dav dav uas feem ntau yog ua los ntawm cov hlau ua los ntawm tooj liab lossis txhuas thiab cov khoom siv rwb thaiv tsev ua los ntawm polyvinyl chloride (PVC). THW sawv cev rau Plastics High-temperature Weather-resistant Aerial Cable. Cov hlau no tsis yog siv tau rau cov kab ke faib khoom sab hauv tsev xwb tab sis kuj siv rau cov kab cable saum toj thiab hauv av, nrog ntau yam kev siv. THW hlau siv dav hauv North America thiab lwm thaj chaw thiab nrov heev.
Cov yam ntxwv ntawm THW hlau
1. Ua kom kub tsis taus, THW hlau siv cov khoom siv PVC ua txheej rwb thaiv tsev, uas ua rau cov hlau muaj kev tiv taus kub zoo heev thiab tuaj yeem tiv taus kub ua haujlwm siab thiab tam sim no. Yog li ntawd, THW hlau yog qhov tsim nyog heev rau kev siv hauv qhov chaw kub siab.
2. Kev tiv thaiv kev hnav, lub plhaub sab nraud ntawm THW hlau yog ua los ntawm cov khoom siv PVC, uas tuaj yeem tiv thaiv cov hlau kom tsis txhob hnav thiab puas tsuaj. Cov hlau no tsis cuam tshuam los ntawm cov yam ntxwv sab nraud lossis tshuaj lom neeg thiab tuaj yeem tswj nws cov kev ua tau zoo rau lub sijhawm ntev.
3. Muaj peev xwm hluav taws xob ntau, THW hlau muaj peev xwm dais hluav taws xob ntau thiab tuaj yeem ua haujlwm tau zoo hauv qab qhov xwm txheej hluav taws xob siab. Cov hlau no tuaj yeem tiv taus qhov hluav taws xob siab tshaj plaws ntawm 600V, uas tuaj yeem ua tau raws li qhov xav tau ntawm feem ntau ntawm cov tsev nyob thiab cov lag luam.
4. Yooj yim rau kev teeb tsa, THW hlau muaj qhov yoog tau yooj yim, ua rau nws yooj yim heev rau kev teeb tsa thiab xaim. Vim nws qhov ywj pheej thiab yooj ywm, THW hlau tuaj yeem khoov thiab ntswj tau yooj yim, ua rau kev teeb tsa yooj yim dua.
Daim ntawv thov ntawm THW hlau
1. Siv rau hauv tsev thiab kev lag luam, THW xaim yog qhov tseem ceeb ntawm cov voj voog sab hauv thiab cov kab ke faib khoom ntawm cov tsev, feem ntau siv rau kev muab hluav taws xob ntawm ntau yam khoom siv hauv tsev xws li teeb, qhov (socket), TV, thiab cua txias.
2. Cov kab hluav taws xob saum toj kawg nkaus, vim yog THW hlau tiv taus kub thiab hnav tsis kam, nws tuaj yeem tiv taus huab cua hnyav thiab kev cuam tshuam sab nraud, yog li nws siv dav hauv cov kab hluav taws xob saum toj kawg nkaus.
3. Cov kab hluav taws xob hauv av, cov txheej rwb thaiv tsev ntawm THW hlau tuaj yeem tiv thaiv cov hlau kom tsis txhob sib cuag nrog dej lossis lwm qhov chaw sab nraud, yog li nws feem ntau siv rau hauv cov kab hluav taws xob hauv av. Cov hlau no tuaj yeem tiv taus cov av noo thiab cov chaw noo noo thiab tseem tuaj yeem tiv thaiv cov hlau los ntawm kev xeb thiab hnav.
Hlau THW VS. Hlau THWN
Cov hlau THW, cov hlau THHN, thiab cov hlau THWN yog cov khoom siv hlau ib lub tub ntxhais yooj yim. Cov hlau THW thiab cov hlau THWN zoo sib xws hauv cov tsos thiab cov ntaub ntawv, tab sis ib qho txawv tseem ceeb ntawm lawv yog qhov sib txawv ntawm cov khoom rwb thaiv tsev thiab cov ntaub ntawv tsho. Cov hlau THW siv cov khoom rwb thaiv tsev polyvinyl chloride (PVC), thaum cov hlau THWN siv cov khoom rwb thaiv tsev thermoplastic polyethylene (XLPE) qib siab dua. Piv nrog PVC, XLPE ua tau zoo dua, nrog kev tiv thaiv dej zoo dua thiab tiv thaiv kub. Feem ntau, qhov kub ua haujlwm ntawm cov hlau THWN tuaj yeem ncav cuag 90 ° C, thaum cov hlau THW tsuas yog 75 ° C, uas yog hais tias, cov hlau THWN muaj kev tiv thaiv kub zoo dua.
Hlau THW VS. Hlau THHN
Txawm hais tias ob qho tib si THW xov hlau thiab THHN xov hlau yog tsim los ntawm cov xov hlau thiab cov txheej rwb thaiv tsev, qhov sib txawv ntawm cov khoom siv rwb thaiv tsev ua rau lawv cov kev ua tau zoo sib txawv hauv qee qhov. THW xov hlau siv cov khoom polyvinyl chloride (PVC), thaum THHN xov hlau siv cov tshuaj epoxy acrylic resin kub siab (THERMOPLASTIC HIGH HEAT RESISTANT NYLON), uas tseem ruaj khov ntawm qhov kub siab. Tsis tas li ntawd, THW xov hlau feem ntau mos dua li THHN xov hlau kom haum rau ntau qhov xwm txheej siv.
Cov xov hlau THW thiab cov xov hlau THHN kuj txawv hauv daim ntawv pov thawj. Ob qho tib si UL thiab CSA, ob lub koom haum pov thawj tseem ceeb hauv Tebchaws Meskas thiab Canada, muab daim ntawv pov thawj rau cov xov hlau THW thiab THHN. Txawm li cas los xij, cov qauv ntawv pov thawj rau ob qho tib si txawv me ntsis. Cov xov hlau THW yuav tsum tau ntawv pov thawj UL, thaum cov xov hlau THHN yuav tsum ua tau raws li cov kev cai ntawm ob lub koom haum pov thawj UL thiab CSA.
Hauv kev xaus lus, THW hlau yog cov khoom siv hlau siv dav dav, thiab nws qhov kev ntseeg tau thiab kev txuag nyiaj tau dhau los ua ib qho ntawm cov khoom siv hlau nyiam rau kev lag luam kev tsim kho thiab kev lag luam hluav taws xob. THW hlau muaj kev ua tau zoo heev thiab tuaj yeem ua tau raws li qhov xav tau ntawm ntau lub sijhawm, coj kev yooj yim thiab kev nyab xeeb rau peb lub neej thiab kev lag luam.
Lub sijhawm tshaj tawm: Lub Xya Hli-15-2023