Ceev faj heev thaum hloov fuses, vim tam sim no txwv fuses muaj ntau yam kev nyab xeeb thaum lub sijhawm ua haujlwm thiab tsis tuaj yeem lav tias txhua qhov kev ua txhaum yog nyob rau hauv lawv qhov kev nyab xeeb, xws li tsis ua haujlwm ntawm lub tshuab hloov lossis lub fuse ua haujlwm hauv qab nws qhov tsawg kawg nkaus tam sim no.
Rau cov laj thawj kev nyab xeeb, nws yuav tsum tau tos tsawg kawg 10 feeb tom qab lub fuse tau qhib thiab lub voj voog raug cais tawm ntawm lwm yam khoom siv hluav taws xob ua ntej hloov nws. Nws yog ib qho tseem ceeb los xyuas kom meej tias lub fuse raug hloov raws li qhov tsis muaj hluav taws xob.