The person's consent must be allowed to work (group work, or chief operating officer)Contact/work with the ̣điện device must comply with the "safety procedures"To grasp the scope of work, jobs, equipment ̣liên concerns for heating systemchildren's ̣thứ system (MC, DCL, DTĐ, TU, TI, DC, safety valves ...)When working on the test object.To check the objects in need of experiments was sure earthing.2 To check the system console cabinets protect (̣ he ̣thống II cabinet Monday) was certainly earthing.
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