1. Nkag siab XHHW thiab XHHHW -2 hires
Xhhw Hlau?
Xhhw sawv rauHla-Txuas Polyethylene (XLPE) Kev Kub Ntau - thiab Dej Resistant HlauCov. Nws yog lub thermoset-insulated tooj liab lossis txhuas tus neeg kos tsim rau:
Cov chaw qhuav: Txog li 90 degree (194 degree f)
Cov chaw qhuav: Txog li 75 degree (167 degree f)
Kev Ntsuas Hluav Taws Xob: Feem ntau 600v
Cov kev siv hluav taws xob muaj xws li faib hluav taws xob hauv Conduit Systems, kev pabcuam nkag hauv cables, thiab kev lag luam machinery.
Xhhw -2 xaim?
Xhhw -2 yog ib qho kev hloov kho ntawm XHHW, muab cov thermal thermal:
Qhov Ntsuas Kub: 90 degree hauv ob qho tib si qhuavthiabNtub ib puag ncig
Kev rwb thaiv tsev: XLPE lossis EPR (Ethylene Propylene Roj Hmab) Rau Cov Kev Nyab Xeeb Zoo Tshaj
Fai fab hov ntau: 600V, ua rau nws zoo tagnrho rau cov ntawv thov siab nyiam xws li hnub ci ua liaj ua teb thiab hvac systems.
Qhov tseem ceeb sib txawv: Xhhw -2 Kuv tau tshaj xhhw hauv ntub-ib puag ncig kev ua yeeb yam, lub rooj sib tham ul thiab CSA cov qauv.
2. Tau cov ntawv pov thawj ntawm XHHW thiab XHHHW -2} xov
UL Qauv Rau Hlau Pom Zoo
Underwriters Chaw soj ntsuam (UL) ntsuas cov xov hlau raws kev nyab xeeb, kav ntev, thiab kev ua haujlwm. Cov Qauv Tseem Ceeb suav nrog:
UL 44: Npog cov xov hlau insulated (piv txwv li, xhhw).
UL 1277: Siv rau XLPE-insulated xaim (piv txwv li, xhhw -2).
Ob leeg xhhw thiab Xhhw -2 yogUl-npe, lees paub ua raws li kev sim ua kom nruj rau:
Nplaim tsis kam: Tus kheej-extinguishing cov khoom.
Rwb thaiv tsev kev koom siab: Kuj tsis kam rau kev puas tsuaj, noo noo, thiab tshuaj lom neeg.
Tam sim no-nqa muaj peev xwm: Ampacity nyab xeeb nyob rau hauv cov xwm txheej.
UL Daim Ntawv Pov Thawj Marcel
Saib rauLogolossis cim zoo li"UL 44"lossis"UL 1277"ntawm cov tsho hlau. Piv txwv li:
Xhhw -2 xaim 600vMuag los ntawm Nassau National Cable Qhia meej meej States kev ua raws li UL / CSA cov qauv.
Aluminium txawv liXhhw -2}} AluminiumTsis tas li nqa cov ntawv pov thawj U, kom muaj kev nyab xeeb siv hauv kev conduit thiab nyob hauv av.
3. Kev thov ntawm xhhw -2 xaim 600v
Xhhw -2} 'rating thiab rwb thaiv tsev khov kho ua kom haum rau:
Lub tsev lag luam: Powering teeb pom kev zoo, HVAC, thiab cov tshuab hnyav.
Muaj Nroj Tsuag: Nrog rau kev kub siab nyob ze cov rwj lossis lub zog.
Hnub No Tseem Ceeb Systems: Lub Vaj Huam Sib Luag Solar Arrays thiab Cua Turbines vim UV Kuj.
Kev Kawm Txog: Ib 300 MCM Aluminium Xhhw -2 xaim (260 amp) yog tau txais kev xaiv tus nqi rau kev kho kom zoo rau hauv cov phiaj xwm loj.
4. Qhov zoo ntawm xhhw -2} txhuas hlau
Aluminium Xhhw -2 I} Cov xaim yog tau txais cov koob npe nrov vim:
Tus Nqi Muaj Zog: 50% sib dua zog thiab pheej yig dua tooj liab.
Corrosion Kuj: Qhov zoo tagnrho rau qhov chaw noo lossis sab nraum zoov.
Roj hmab: 1 AWG Xhhw -2} Cov hlau hlau txhawb nqa 115A ntawm 600V, piv rau tooj liab.
Tswv yim qhia: Siv cov tshuaj tiv thaiv oxidant ntawm cov ntsiab lus txiav kom tiv thaiv kev xeb galvanic.
5. Ua raws li NEC thiab cov qauv thoob ntiaj teb
National Electrical Code (NEC): Xhhw -2 Tau lees paub hauv NEC tsab xov xwm 310 rau cov xaim feem dav.
CSA Daim Ntawv Pov Thawj: Xav tau rau Canadian cov lag luam, feem ntau tau ua ke nrog UL kev pom zoo.
6. Yuav ua li cas qhia tau rau kev pom zoo
Txheeb xyuas cov kab hlau: Saib rau "ul" lossis "UL teev" ntawm lub tsho.
Cov ntaub ntawv xa khoom: Lub npe nrov nrov xws li Nassau Lub Tebchaws Cable Muab cov lus pov thawj rau cov khoom lag luam zoo li 2 / {} A AWG Aluminium Xhhw -2.
Online databases: Siv ulKhoom IQportal kom paub meej tias muaj pov thawj xwm txheej.
Dongguan Ntau Ntau Hlau & Cable Co., Ltd.Muaj cov rhiav ntau lawm thiab cov cuab yeej siv ntau lawm, thiab tuaj yeem tsim khoom 1.3 lab meters ntawm cov cable zoo hauv ib hlis. Tus pab pawg R & D Qhov kev tshawb fawb hauv peb cov qauv kev ua lag luam thiab cov tseev kom muaj thiab txhim kho cov khoom lag luam txuas ntxiv. Peb tus thhn xaim, xhhw, tc-er cable thiab lwm yam khoom tau dhau Ul83, ul44, ul1277 thiab lwm yam ntawv pov thawj, thiab muaj cov khoom pov thawj zoo. Nyob rau hauv cov nqe lus ntawm nqe, vim muaj kev tshaj tawm loj thiab muaj txiaj ntsig zoo, peb tuaj yeem muab cov neeg siv khoom Asmeskas Asmeskas nrog cov khoom lag luam uas muaj 25% qis dua li tus nqi lag luam nruab nrab. Peb yog koj tus khub zoo rau kev koom tes ntev.