SafetyCâu 568 / 700
On a construction site, what are the TWO commonly accepted ways to protect workers from ground faults when using temporary power for hand tools?
a.Extension cords rated for indoor use, and duct tape on splices
b.Longer cords, and painting the cords a bright color
c.Ground-fault circuit interrupters (GFCIs), or an assured equipment grounding conductor program
d.Only turning tools off between uses
Giải thích
Cal/OSHA accepts either GFCI protection on receptacles and cords, or a documented assured equipment grounding conductor program with regular inspection and testing, to guard against electric shock from ground faults. Option a and b describe unsafe or irrelevant practices. Option d does nothing about a fault while the tool is in use. Either GFCIs or an assured grounding program (ideally GFCIs) must be in place for temporary power.
Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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