Lub pob laub khawm hloov yog hais txog lub pob hluav taws xob uas siv lub laub khawm tsav lub zog sib kis, nias lossis kaw qhov sib txuas thiab cov sib tiv tauj zoo li qub, thiab siv hluav taws xob hloov. Lub laub khawm hloov yog qhov yooj yim thiab siv cov khoom siv tswv yim. Hauv hluav taws xob tsis siv neeg tswj Circuit Court, nws yog siv los xa tawm cov phiaj xwm tswj hwm kom tswj tau cov contactors, rov xa khoom, pib siv hluav taws xob, thiab lwm yam.
Lub laub khawm hloov, kuj hu ua khawm tswj (luv luv rau khawm), yog lub tshuab hluav taws xob tsis tshua muaj hluav taws xob uas tuaj yeem hloov kho dua tshiab manually thiab feem ntau tau txais. Lub pob khawm feem ntau yog siv los tsim kev pib lossis nres kev qhia nyob rau hauv Circuit Court kom tswj tau cov thiab tawm ntawm cov xov hluav taws xob tam sim no ntawm lub tshuab hluav taws xob, lub tshuab hu, tus xa tawm thiab lwm yam.
Lub laub khawm hloov hluav taws xob yog lub tshuab hluav taws xob uas siv los hloov thiab tawm ntawm lub voj voog me me tam sim no thaum nws ua raws thaum nias thiab tso tawm thaum rov ua dua. Nws feem ntau siv hauv kev tswj kav nrog AC thiab DC voltage hauv qab 440V thiab tam sim no qis dua 5A. Feem ntau, lub ntsiab hluav taws xob tsis raug ncaj qha kev tswj, thiab nws kuj tseem siv tau hauv cov voj voog txuas.
Hauv kev siv tiag tiag, txhawm rau tiv thaiv kom tsis txhob yuam kev, cov nyees khawm feem ntau cim txawv los yog pleev xim nrog cov xim sib txawv kom paub qhov txawv lawv. Cov xim muaj xim liab, daj, xiav, dawb, dub, thiab ntsuab. Feem ntau liab qhia tau tias ua haujlwm hauv "nres" lossis "phom sij"; ntsuab qhia tias "pib" lossis "rau". Lub pob hluav taws kub ceev yuav tsum yog lub pob liab liab lub taub hau. Lub pob yuav tsum muaj lub nplhaib tiv thaiv hlau, thiab lub nplhaib tuav yuav tsum siab dua lub khawm khawm kom tiv thaiv kev sib tsoo ntawm lub khawm thiab ua rau ua haujlwm tsis zoo. Cov khoom siv ntawm khawm phaj thiab khawm lub thawv rau kev txhim kho lub khawm yuav tsum yog hlau thiab txuas nrog lub npav hauv av tseem ceeb ntawm lub tshuab.