2 Kev tu txhua hnub, hloov kho, tu, tshuaj xyuas thiab commissioning rau cov khoom siv.Nkag mus rau hauv qhov chaw txwv, kev ua haujlwm kub, kev ua haujlwm dismantling thiab lwm yam hauv cov pej thuam, lub tank, lub cev hluav taws xob, hluav taws xob, hluav taws xob, cov khoom siv hluav taws xob, cov twj tso kua mis thiab lwm yam.
Kev ua haujlwm suav nrog high voltage.(nrog rau kev ua haujlwm nyob rau hauv high-tension cable)
Kev ua haujlwm yuav tsum kaw qhov kev nyab xeeb ib ntus.
Kev ua haujlwm thaum tu thiab commissioning ntawm tsis ua
