Lus piav qhia luv luv:

Cov khoom no tuaj yeem siv rau sab hauv tsev ntawm 50Hz thiab ntsuas hluav taws xob 12kV. Nws tuaj yeem rhuav tshem txhua qhov txhaum tam sim no ntawm lub fuse melting tam sim no thiab qhov ntsuas tawg, nws tseem muaj qhov txwv tsis pub siv tam sim no ntawm kev tiv thaiv me me tam sim no, kev tiv thaiv tag nrho tuaj yeem ua tiav.