THHN hlau yog cov ntawv luv rau Thermoplastic High Heat resistance Nylon coated wire, uas tau txais kev lees paub dav dav thiab siv nyob rau hauv lub zog xa hluav taws xob thiab xaim hluav taws xob, tshwj xeeb tshaj yog nyob rau hauv kev tsim kho ntawm Asmeskas cov teb chaws, vim nws cov khoom siv tshwj xeeb thiab ntau yam kev siv.
THHN kablub npe thiab lub ntsiab lus
Thermoplastic
Cov ntaub ntawv thermoplastic yog ib qho tseem ceeb ntawm THHN cable, uas yog softening thaum cua sov thiab rov qab mus rau lawv cov khoom qub qub thaum txias. Cov yam ntxwv no ua rau THHN hlau yooj yim heev hauv kev ua thiab ntau lawm, thiab yooj yim rau cov duab.
Kev ua haujlwm ntawm cov txheej txheem thermal rwb thaiv tsev: Cov txheej txheej rwb thaiv tsev feem ntau yog tsim los ntawm PVC (polyvinyl chloride) lossis cov ntaub ntawv zoo sib xws, uas tsis tsuas yog ua haujlwm raws li rwb thaiv tsev, tab sis kuj muab qee yam tshuaj tiv thaiv thiab ya raws.
Qhov zoo: Thermoplastic rwb thaiv tsev txheej muaj zog yooj, yooj yim rau nruab, thiab tuaj yeem hloov mus rau ntau qhov chaw tsim kho.
Kub Kub Resistance
Kev kub siab ua haujlwm yog qhov tseem ceeb ntawm THHN cable, uas tuaj yeem ua haujlwm ruaj khov rau lub sijhawm ntev hauv qhov kub thiab txias. Raws li NEC (National Electrical Code), qhov kub siab tshaj plaws uas cov rwb thaiv tsev ntawm THHN cable tuaj yeem tiv taus yog feem ntau:
75 ° C: nyob rau hauv cov av noo los yog high humidity ib puag ncig;
90 degree C: nyob rau hauv ib qho chaw qhuav.
Qhov kev tiv thaiv cua sov no ua rau nws tsim tshwj xeeb rau kev lag luam ib puag ncig, kev tsim vaj tsev, thiab lub zog faib hluav taws xob, ntsib kev xav tau ntawm cov khoom siv siab thiab kev ua haujlwm kub.
Nylon sheath rau thhn hlau
Nylon txheej sheath yog cov khoom siv tiv thaiv sab nraud ntawm hlau thhn, muab cov khoom siv dag zog ntxiv thiab kev hloov pauv ib puag ncig rau cov hlau.
Muaj nuj nqi:Cov nylon sheath tsis tsuas yog txhim kho qhov hnav tsis kam ntawm thhn hlau, tab sis kuj muab qee qhov kev tiv thaiv dej thiab roj, ua rau nws tsim nyog siv rau hauv qhov chaw hnyav.
Nta:Cov khoom siv nylon yog lub teeb yuag tab sis muaj zog, tiv thaiv kev puas tsuaj rau hlau thhn thaum ncab thiab txhim kho.
Lub hauv paus qauv ntawm THHN hlau
Los ntawm lub npe, peb tuaj yeem pom tias cov qauv ntawm THHN hlau muaj cov txheej txheem sib txawv thiab cov haujlwm meej. Nws cov qauv yooj yim feem ntau suav nrog peb txheej hauv qab no:
tus neeg xyuas pib ntawm THHN hlau
Khoom siv:Cov tooj liab liab lossis txhuas feem ntau yog siv, ob qho tib si uas muaj cov khoom siv zoo thiab corrosion kuj.
Daim ntawv:Cov neeg siv khoom tuaj yeem yog ib leeg lossis ntau txoj hlua khi, nrog cov khoom sib txuas ua ke zoo dua rau cov xwm txheej uas xav tau kev hloov pauv siab.
Thermoplastic rwb thaiv tsev txheej
Khoom siv:feem ntau yog PVC los yog lwm yam ntaub ntawv thermoplastic uas muaj cua sov zoo heev.
Muaj nuj nqi:Muab hluav taws xob rwb thaiv tsev kom muaj kev nyab xeeb kev ua haujlwm, thaum tseem muaj qee yam tshuaj tiv thaiv thiab nplaim taws retardancy.
Nylon sheath ntawm thhn cable
Nta:Txuas rau sab nraud ntawm txheej rwb thaiv tsev, muab kev tiv thaiv ntxiv.
Xim:Cov xim ntawm cov sheath feem ntau yog siv los paub qhov txawv ntawm txoj haujlwm ntawm thhn hlau, piv txwv li, dub sawv cev rau theem xaim, dawb sawv cev rau cov hlau nruab nrab, thiab ntsuab lossis daj sawv cev rau hauv av hlau.
Daim ntawv thov scenarios ntawmTHHN kab
Vim nws zoo heev kub tsis kam, mechanical zog, thiab hluav taws xob yam ntxwv, thhn cable yog dav siv nyob rau hauv ntau yam teb, xws li:
Lub tsev faib hluav taws xob
hlau thhn feem ntau yog siv rau lub ntsiab thiab ceg kab hluav taws xob hauv cov vaj tse, cov tsev lag luam, thiab cov chaw tsim khoom.thhb cabl kuj tseem tuaj yeem ntsia tau rau hauv cov txheej txheem nteg xws li cov kav dej thiab cov tais cable kom tau raws li ntau yam kev cai ib puag ncig.
Kev lag luam scene
Hauv kev tsim khoom, cov nroj tsuag tshuaj, cov chaw tsim hluav taws xob, thiab lwm yam xwm txheej, THHN hlau tuaj yeem tiv taus kev ua haujlwm nyuaj xws li kub, av noo, thiab kev sib txhuam ntawm cov tshuab.
Teeb pom kev zoo thiab cov khoom siv hluav taws xob
Qhov yooj yim thiab kub tsis kam ntawm THHN cable ua rau lawv zoo heev rau kev xaim teeb pom kev zoo, lub cev muaj zog, thiab lwm yam khoom siv hluav taws xob.
Kev tso dej hauv av
Yog tias ua ke nrog kev tiv thaiv cov kav dej tsim nyog, THHN hlau tuaj yeem siv rau hauv av nteg, muab cov kev daws teeb meem zoo rau cov khoom siv hluav taws xob hauv av.
Qhov zoo thiab kev txwv ntawm THHN xov hlau
Qhov zoo:
Muaj zog kub tsis kam:xaim thhn tuaj yeem hloov mus rau kev ua haujlwm kub, tshwj xeeb tshaj yog ua tau zoo hauv qhov chaw qhuav.
High mechanical zog:Nylon sheath ntawm thhn hlau muab kev hnav zoo heev rau cov xov hlau.
Yooj yim rau nruab:Nrog kev yooj yim zoo, thhn cable yog ib qho yooj yim rau nteg nyob rau hauv qhov chaw nqaim thiab complex ib puag ncig.
Economical thiab tswv yim:Piv nrog rau lwm cov xaim hluav taws xob tiv thaiv hluav taws xob, THHN hlau muaj tus nqi nruab nrab thiab tus nqi siab.
txwv:
Txwv txias tsis kam:Cov ntaub ntawv thermoplastic tuaj yeem ua nkig nyob rau hauv qhov chaw uas tsis tshua muaj kub.
Waterproof kev ua tau zoo xav tau kev pab txhawb nqa khoom:Txawm hais tias nylon sheaths ntawm thhn xaim muaj qee yam dej tsis haum, kev tiv thaiv ntxiv xws li cov kav dej yuav tsum tau muaj nyob rau hauv cov dej hauv qab dej los yog qhov chaw ntub dej.
Tsis haum rau qhov chaw raug:Nylon sheaths ntawm thhn cable yog nquag rau kev laus nyob rau hauv lub sij hawm ntev raug rau ultraviolet hluav taws xob, yog li lawv tsis pom zoo rau siv nyob rau hauv raug tej qhov chaw.
Kev sib piv ntawm THHN hlau thiab lwm cov xov hlau
Txuas nrog THWN hlau
Zoo sib xws: Ob leeg muaj nylon sheaths thiab tshav kub-resistant zog.
Qhov txawv: THWN hlau tau ua kom muaj dej tsis zoo thiab tsim nyog rau qhov chaw ntub dej los yog hauv qab dej.
Txuas nrog XHHW hlau
Zoo sib xws: Ob leeg muaj kev tiv thaiv kub.
Qhov sib txawv: XHHW cov xov hlau siv cov kab sib txuas polyethylene (XLPE) rwb thaiv tsev txheej, uas yog tsim rau ntau qhov chaw xav tau, tab sis ntawm tus nqi siab dua.
Lub npe tag nrho ntawm THHN xaim qhia meej meej txog nws cov khoom siv thiab cov yam ntxwv ua haujlwm. Raws li kev ua haujlwm siab thiab ntau lub hom phiaj, THHN cable plays lub luag haujlwm hloov tsis tau hauv cov tshuab hluav taws xob niaj hnub. Los ntawm kev nkag siab tob txog nws lub npe thiab lub ntsiab lus, peb tuaj yeem tsis tsuas yog xaiv cov khoom siv hlau zoo dua, tab sis kuj muab cov kev daws teeb meem zoo dua thiab muaj kev nyab xeeb rau cov haujlwm.
Txawm hais tias nws tab tom tsim hluav taws xob xaim lossis kev xaim hluav taws xob, THHN hlau yuav txuas ntxiv mus ua haujlwm tseem ceeb hauv kev lag luam hlau nrog lawv cov kev ua tau zoo.
PebGERITEL WIREtuam txhab tau tshwj xeeb hauv kev tsim cov xov hlau rau 30 xyoo, thiab cov xov hlau tau dhau UL daim ntawv pov thawj. Peb zoo siab tos txais cov neeg siv khoom los kawm txog peb cov khoom
