Nyob rau hauv cov xwm txheej dab tsi tuaj yeem siv qis-voltage Switchgear?

1. Cov huab cua nyob ib puag ncig yuav tsum tsis pub tshaj 40 degree, tsis qis dua -5 degree, thiab nws qhov nruab nrab kub yuav tsum tsis pub tshaj 35 degree nyob rau hauv 24 teev.
2. Cov huab cua huv si. Thaum qhov kub siab yog 40 degree, nws cov txheeb ze av noo yuav tsum tsis pub tshaj 50%. Thaum qhov kub thiab txias qis dua, tso cai rau cov av noo ntau dua.
3. Cov pa phem theem 3.
4. Qhov siab ntawm qhov chaw teeb tsa yuav tsum tsis pub tshaj 2000m.
5. Cov xwm txheej siv tshwj xeeb.