Vim li cas nws tsis yog nruj me ntsis faus rau hauv cov phab ntsa ntawm cov kab hluav taws xob yas uas thaiv?
(1) Tom qab siv cov roj hmab insulated ntev ntev, cov yas yuav hnub nyoog thiab tawg, thiab qib rwb thaiv tsev yuav raug txo kom tsawg. Thaum cov kab luv luv-sijhawm dhau los lossis luv luv-Circuit Court, nws yooj yim dua kom kho lub rwb thaiv tsev puas tsuaj.
(2) Thaum lub ntsa ntub lawm, nws yuav ua rau thaj chaw loj thiab muaj kev puas tsuaj rau tus kheej.
(3) Cov yas insulated hlau yog faus ncaj qha rau hauv qhov tsaus ntuj, uas tsis yog qhov zoo rau txoj kab thiab kev saib xyuas.