THHN kab(thermoplastic high-temperature nylon sheathed wire) yog cov xaim ua haujlwm siab dav siv hauv kev tsim hluav taws xob, uas tau nyiam cov xim zoo rau nws cov kav ntev, kev ntseeg siab, thiab kev lag luam. Hauv tebchaws Philippines, Philippine National Standard (PNS) muaj cov kev cai nruj heev ntawm kev ua haujlwm, kev ua haujlwm, thiab cov kev xav tau zoo ntawm THHN cable, kom ntseeg tau tias lawv ua tau raws li kev nyab xeeb hauv zos thiab kev ua haujlwm.
Cov kev cai yooj yim rauTHHN xov hlau hauv Philippineslub teb chaws tus qauv
PNS qhia txog cov txheej txheem thev naus laus zis thiab kev thov ntawm thhn lub tsev xaim kom ntseeg tau tias lawv muaj kev nyab xeeb thiab kev ua tau zoo, suav nrog cov hauv qab no:
1.Conductor khoom ntawm hlau thhn:
Cov khoom siv ntawm thhn lub tsev hlau yuav tsum yog cov khoom siv hluav taws xob siab muag muag, uas tuaj yeem ua tau zoo lossis hloov tau. Cov kev qhia tshwj xeeb xws li 150 mm ² THHN stranded tooj liab hlau cable yuav tsum ua kom tau raws li qhov xav tau ntawm cov khoom siv tooj liab zoo.
2.Insulation txheej thiab sheath ntawm thhn cable:
Cov txheej sab hauv yog insulated nrog polyvinyl chloride (PVC), uas muaj cov cua sov zoo thiab nplaim hluav taws.
Cov txheej txheej txheej yog npog nrog nylon sheath los txhim kho hnav tsis kam, tshuaj tiv thaiv corrosion, thiab roj tsis kam.
3.Rated voltage thiab kub ntawm thhn hlau:
Qhov ntsuas hluav taws xob yog 600 V.
Qhov kub thiab txias: mus txog 90 ° C hauv qhov chaw qhuav thiab mus txog 75 ° C hauv qhov chaw ntub dej.
4.Ua raws li cov qauv thoob ntiaj teb thiab hauv zos Philippines:
PNS 35-1: 2004
UL 83 (International Standard)
NEC thiab PEC (Philippine Electrical Code)
2. Kev paub meej thiab daim ntawv thov scenarios ntawm cov specifications ntawm thhn hlau
Muaj ntau yam kev qhia tshwj xeeb thiab hom THHN cable kom tau raws li qhov xav tau ntawm hluav taws xob sib txawv. Cov hauv qab no yog cov yam ntxwv thiab kev siv ntawm ntau lub ntsiab lus tshwj xeeb:
Me meTHHN tsev hlau
2.0 hli thhn hlau cable:
Haum rau kev sib txuas cov teeb pom kev zoo thiab cov khoom siv hauv tsev me me.
Tus neeg xyuas pib muaj thaj tsam me me thiab feem ntau yog siv hauv circuits uas tsis tshua muaj loads tam sim no.
3.5mm Thn Wire:
Daim ntawv thov scenarios muaj xws li hloov cov xov hlau thiab qhov (socket) nyob rau hauv cov tsev nyob thiab cov lag luam.
Lub peev xwm nqa tam sim no ntau dua ua rau nws haum rau cov khoom siv hluav taws xob nruab nrab.
Medium specification thhn hlau cable
5.5 mm² thhn wire and 8.0 mm² thhn wire :
Feem ntau siv rau kev xaim cua txias tshuab, twj tso kua mis, thiab lwm yam khoom siv hluav taws xob nruab nrab.
Muaj peev xwm nqa tau siab dua tam sim no, haum rau cov kab loj loj.
14mm Thn Wire:
Dav siv rau kev xaim ntawm cov khoom siv hauv nruab nrab.
Nws cov neeg kho tshuab siab zog thiab conductivity ua rau nws muaj peev xwm tiv taus cov av noo lossis corrosive ib puag ncig.
Loj thhn hlau cable
30 hli THHN CU hlau thiab 38 hli 2 thhn hlau:
Siv rau cov kab hluav taws xob tseem ceeb ntawm cov khoom siv hauv kev lag luam, xws li kev sib txuas ntawm cov motors loj thiab transformers.
Sab nrauv nylon sheath muab kev tiv thaiv ntxiv thiab tsim nyog rau cov neeg kho tshuab kev ntxhov siab nyob rau hauv ib puag ncig kev lag luam.
80mm THHN Tsev Hlau thiab 125mm thhn hlau:
Haum rau high-rise lub tsev loj cable systems, siv raws li lub cev kab los yog siab load circuits.
Qhov tseem ceeb tam sim no nqa peev xwm thiab arc tsis kam ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov haujlwm loj.
150 mm² THHN Stranded Copper Hlau:
Haum rau cov khoom siv hnyav thiab cov khoom siv hluav taws xob siab, xws li cov kab hluav taws xob sib txuas.
Twisted qauv txhim khu kev yooj yim thiab yooj yim installation.
200 mm² THHN Hlau thiab 250 mm² THHN Hlau:
Cov kab hluav taws xob siv rau cov phiaj xwm loj loj, xws li subways, tshav dav hlau, thiab chaw ua lag luam.
Tus nqi kuj yog siab heev (xws li 200 mm ² THHN xaim nqi), tab sis nws cov kev ua tau zoo thiab kev ntseeg tau ua tau raws li qhov yuav tsum tau muaj ntawm cov chaw tseem ceeb.
3. PNS cov kev cai tshwj xeeb rau THHN xov hlau
Loj thiab conductor qauv ntawm thhn hlau:
PNS qhia qhov loj thiab tus neeg xyuas pib cov qauv rau cov qauv sib txawv ntawm THHN xov hlau. Piv txwv li:
Cov xov hlau me me ntawm 2.0 hli thiab 3.5 hli yuav tsum tau siv cov khoom siv tooj liab.
Nws raug nquahu kom siv cov hlua khi tooj liab rau cov xov hlau loj ntawm 30 mm ² thiab saum toj no txhawm rau txhim kho kev txhim kho yooj yim.
Kub thiab humidity kam rau ua:
Thhn cable yuav tsum muaj cov av noo zoo nyob rau hauv high humidity thiab cua sov huab cua ntawm Philippines, tshwj xeeb tshaj yog nyob rau hauv industrial specification nyob ntawm tej xws li 38 mm ² thhn hlau thiab 80 hli thhn tsev hlau, qhov twg cov waterproof kev kawm ntawm lub sheath yog tshwj xeeb yog tseem ceeb.
Anti aging kev ua tau zoo:
PNS yuav tsum tau nylon sheaths kom muaj cov khoom tiv thaiv kev laus los xyuas kom meej lub neej kev pab cuam ntawm cov xov hlau nyob rau hauv kub, high humidity, los yog tshuaj ib puag ncig.
Kev lag luam thiab kev nyab xeeb tseem ceeb ntawm PNS cov qauv
Qhov kev thov rau high-zoo thhn xov hlau nyob rau hauv Philippine lag luam tau ua rau PNS cov qauv ua qauv kev lag luam. Cov hauv qab no yog qhov tseem ceeb ntawm PNS cov qauv hauv kev siv tswv yim:
Txhawb kev nyab xeeb siv hluav taws xob:
Los ntawm kev tswj hwm cov khoom siv hluav taws xob, kev ua haujlwm rwb thaiv tsev, thiab kev ua haujlwm kub ntawm Thhn xov hlau, PNS tus qauv txo qhov kev pheej hmoo ntawm hluav taws kub thiab hluav taws xob poob siab mus rau qhov loj tshaj plaws.
Txhawb txoj kev loj hlob ntawm kev lag luam hauv zos:
Cov qauv kev sib koom ua ke pab cov tuam txhab xaim los tsim cov khoom tsim nyog raws li cov lus qhia tshwj xeeb, muab cov neeg siv khoom xaiv zoo, thiab txhawb kev sib tw export.
Cov txiaj ntsig nyiaj txiag:
Txawm hais tias cov xov hlau loj xws li 200 mm ² thhn hlau muaj tus nqi siab dua, lawv cov kev ua tau zoo thiab kev ua neej nyob ua rau muaj txiaj ntsig zoo rau lub sijhawm ntev. Cov khoom uas ua raws li PNS cov qauv txo cov nqi kho thiab txhim kho kev ntseeg tau.
Yuav ua li cas xaiv THHN hlau uas ua raws li PNS?
Thaum xaiv Thhn cable, nws yog ib qho tsim nyog yuav tsum ntsuas lawv raws li daim ntawv thov scenarios thiab specification yuav tsum tau. Nov yog qee cov lus qhia siv:
Rau tsev neeg circuits, nws raug nquahu kom siv thhn 2.0 mm lossis thhn 3.5 mm specifications.
Cov khoom siv nruab nrab lossis cov tshuab cua txias tau pom zoo kom siv cov kev qhia tshwj xeeb xws li thhn 5.5 mm ² txog thhn14 mm.
Kev lag luam ib puag ncig lossis tsim cov cables loj tuaj yeem xaiv cov xaim loj loj xws li xaim thhn 30 mm ² rau cable thhn 250 mm ².
Xyuas kom meej tias cov xov hlau muaj PNS thiab UL cov cim thiab ua raws li PEC lossis NEC cov cai.
Cov kev cai ntawm Philippine National Standard (PNS) rau thhn cable npog txhua yam ntawm cov khoom siv hluav taws xob mus rau kev ua haujlwm rwb thaiv tsev thiab kev hloov pauv ib puag ncig, ua kom lawv muaj kev nyab xeeb thiab kev ntseeg tau. Txawm hais tias nws yog cov xov hlau me me xws li 2.0 hli THHN Hlau lossis cov xaim loj loj xws li 250 mm ² thhn Wire, PNS tus qauv muab cov qauv qhia meej meej rau kev ua lag luam Philippines, ua kom cov neeg siv khoom siv hluav taws xob. kev nyab xeeb thiab nyiaj txiag cov txiaj ntsig. Nyob rau hauv lub neej yav tom ntej, nrog rau txoj kev loj hlob ntawm kev siv technology thiab kev xav tau ntau, THHN xov hlau yuav txuas ntxiv mus ua lub luag haujlwm tseem ceeb hauv cov tsev nyob, kev lag luam, thiab kev lag luam hluav taws xob hauv Philippines.
