Lub qhov rooj hluav taws muaj lub luag haujlwm tseem ceeb hauv kev txuag lub neej thiab kev cai lub tsev hais kom meej qhov chaw uas lawv yuav tsum tau ua kom haum nyob hauv thaj chaw nyob hauv vaj tse thiab kev lag luam.
Ua tsaug rau lub qhov rooj tua hluav taws tsis tas yuav saib kom zoo lossis ua haujlwm thiab qhov zoo yog tias txhua yam ntawm peb lub qhov rooj sab hauv muaj cov kev xaiv ntawm cov sijhawm sib txawv hluav taws. Ntxiv rau, peb muaj qhov cub hluav taws cov qhov rooj muaj los ntawm Tshuag thiab tuaj yeem ua qhov rooj hluav taws kub rau peb cov neeg siv khoom tshwj xeeb.
Ntawm no yog cov iav vaj huam sib luag tsim
Txhua ntawm peb cov qhov rooj tua hluav taws tau lees paub tag nrho thiab sim ua tiav raws li BS 476 part22 lossis EN1634-1: 2000. Ib qho ntxiv, peb lub qhov rooj ntoo thiab hlau tua hluav taws tau dhau qhov kev xeem Asmeskas UL ( Underwriters Laboratories Inc.). Kev tsim qauv ntau hom thiab hom ua rau peb tuaj yeem muab qhov rooj zoo thiab kev pabcuam kev paub rau txhua yam koj ua tiav.