Ib lub thawv faib khoom yog qhov tseem ceeb ntawm lub kaw lus fais fab, feem ntau yog qhov kev tawm tsam, thiab kev tiv thaiv hluav taws xob, ua haujlwm kom muaj kev nyab xeeb ntawm cov hluav taws xob. Hauv qab no yog qee cov kev qhia tshwj xeeb rau cov thawv faib khoom:
1. Cov hluav taws xob hluav taws xob: Qhov no qhia txog qhov hluav taws xob siab tshaj plaws rau lub thawv faib khoom tuaj yeem tiv taus, ib txwm 380V lossis 220V (rau cov khoom siv hauv tsev).
2. Nyob tam sim no: Qhov no qhia tau qhov siab tshaj plaws lub thawv xa tawm tuaj yeem tiv thaiv tau, feem ntau 20a, 50a, 50a, thiab lwm yam.
3. Kev tiv thaiv kev tiv thaiv: Qhov no qhia txog qib kev tiv thaiv tau muab los ntawm lub thawv faib khoom, feem ntau yog li IPH54, IP54, IP54, qhia txog cov kev tiv thaiv sib txawv.
4. Kev khiav hauj lwm ambient kub: Qhov no qhia txog qhov chaw nce toj hauv cheeb tsam uas lub thawv faib khoom tuaj yeem ua haujlwm feem ntau, feem ntau ntawm -25℃thiab {2}+40 degree.
5. Kab zog muaj peev xwm: Qhov no qhia tau tias muaj peev xwm ntau tshaj plaws ntawm lub thawv faib khoom.
6. Nominal Luv - Circuit Rhuav Lub Peev Xwm: Qhov no qhia tau qhov muaj peev xwm sai ntawm lub shunt thiab fuse nyob rau hauv qhov kev tshwm sim ntawm ib qho luv luv {3} {circuitation txhaum.
7. Arc wallstand lub sijhawm: Qhov no qhia txog lub sijhawm arcing los ntawm kev sib tham ib ntus. Qhov no feem ntau siv los ntsuas kev nyab xeeb kev ua haujlwm ntawm lub thawv faib khoom.
Hauv cov ntsiab lus, qhov saum toj no yog qee cov kev tsis sib xws rau cov thawv faib khoom. Cov kev siv sib txawv yuav tsum muaj cov kev sib txawv me ntsis, yog li cov neeg siv tuaj yeem xaiv raws lawv cov kev xav tau tshwj xeeb.