Cov xov hlau tseem ceeb yog hlau xav ua cov hluav taws xob tiv thaiv (uas tau siv los tswj cov nyiaj tam sim no hauv Circuit Court). Nws yog qhov zoo dua yog tias alloy siv muaj qhov siab resistivity, txij li cov xaim xaim hluav taws xob tuaj yeem siv. Nyob rau hauv ntau cov xwm txheej, qhov kev ruaj ntseg ntawm lub resistor yog qhov tseem ceeb tshaj plaws, thiab yog li cov coefficient ntawm resefficity thiab corrosion tsis kam ua ib feem loj hauv cov khoom xaiv.

Thaum cov xov hlau tseem ceeb yog siv rau cua sov ntsiab (hauv dej sov, toaster, thiab zoo li), muaj zoo li tsis tseem ceeb yog qhov tseem ceeb.

Qee zaum cov hlau tsis tawm tsam yog insulated los ntawm cov hmoov nplej thiab sheathed hauv lub raj ntawm lwm cov alloy. Xws li cov cua sov cov ntsiab lus siv hauv hluav taws xob ncu thiab dej sov, thiab hauv cov ntawv tshwj xeeb rau cov cooktops.
Cov hlua hlau yog ntau cov strands ntawm hlau hlau ntswj rau hauv ib qho kev sib xyaw ua ke "hlua", hauv qhov qauv hu ua "looj hlua". Cov hlua loj dua muaj ntau cov strandtxoj hluasnteg ".

Cov xov hlau hlau rau cov hlua hlau yog ib txwm ua los ntawm cov tsis-alloy carbon hlau nrog cov ntsiab lus carbon nrog 0.4 mus rau 0.95%. Lub zog muaj zog heev ntawm cov hlua hlau ua haujlwm pab txhawb cov hlua hlau los txhawb cov rog loj tensile thiab kom khiav hla kev sib tw me me.

Hauv kev hu ua ntoo saum npoo nteg strands, cov xov hlau ntawm cov khaubncaws sab nraud sib txawv. Nyob rau hauv feem ntau siv parallel nteg strands, qhov ntev ntev ntawm tag nrho cov hlau txheej yog sib npaug thiab cov xov hlau yog sib ze, uas ua rau txoj kev sib cuag. Cov hlau ntawm txheej sab nraud yog txhawb nqa los ntawm ob xaim ntawm txheej sab hauv. Cov hlau no yog cov neeg nyob sib ze raws qhov ntev ntawm txoj kev. Parallel nteg strands tau ua nyob rau hauv ib qho kev ua haujlwm. Qhov kawg ntawm cov hlua hlau nrog cov hlua hlau nrog cov hlua no ib txwm muaj ntau dua ntawm cov (tsis tshua siv) nrog hla nteg strands. Parallel nteg strands nrog ob txheej hlau muaj cov muab tso ua ke ua ke, sea lossis Warrington.

Hauv txoj cai, kauv hlua yog puag ncig strands raws li lawv muaj cov rooj sib xyaw ntawm ib qho ntawm ib qho ntawm cov xov hlau tau tso rau hauv cov txheej txheem rov qab rau ntawd ntawm txheej sab nraud. Muab cov hlua kauv tawm tuaj yeem ua pov rau hauv cov kev uas lawv tsis muaj kev sib hloov uas lawv tsis muaj kev sib hloov uas txhais tau tias nyob rau hauv kev nruj txoj hlua ntawm txoj hlua yog ze li xoom. Qhov qhib kauv hlua muaj tsuas yog ntawm cov xov hlau. Lub ib nrab-cov xauv coil Hlua thiab tag nrho-tau siv coil hlua ib txwm muaj qhov chaw ua haujlwm ntawm cov xov hlau. Cov hlua khi ntawm cov hlua muaj ib lossis ntau cov khaubncaws sab nraud povtseg ntawm cov xov hlau profile. Lawv muaj qhov zoo dua uas lawv cov kev tsim kho tiv thaiv kev nkag mus rau cov av ntawm cov av thiab dej kom ntau dua thiab nws kuj tiv thaiv lawv los ntawm cov roj nplua nyeem. Ib qho ntxiv, lawv muaj ib qho ntxiv tseem ceeb heev kom zoo li qhov xaus ntawm cov xaim xaim tawg uas tsis tuaj yeem tawm ntawm txoj hlua yog tias nws muaj qhov kom zoo.
Cov hlau pov tseg yog tsim ntawm ntau cov xov hlau bundled lossis qhwv ua ke los ua tus txiv neej tus txiv neej loj. Cov hlau pov tseg yog yoog tau ntau dua li cov xaim xaim hluav taws xob ntawm tib lub cross-sectional cheeb tsam. Cov hlau pov tseg yog siv thaum siab dua mus rau cov kev ua kom muaj kev nkees. Xws li cov xwm txheej sib txuas ntawm cov laug cam ntawm cov laug cam raws li cov xaim hluav taws xob-board yuav tsim kev ntxhov siab ntau dhau los ntawm kev txav mus los lossis kev pabcuam; AC kab hlua rau cov khoom siv; Suab paj nruastxoj hluass; Khoos phib tawj nas cable; Vuam electrode cables; Tswj cov cables sib txuas rau cov khoom txav txav; Tshuab mut mining; Tshuab Trailing; thiab ntau lwm tus.