An toànCâu 1282 / 1605
For cranes and equipment operating near overhead power lines up to 50 kV, what minimum clearance is generally required if the line is not de-energized and grounded?
a.10 feet
b.3 feet
c.5 feet
d.1 foot
Giải thích
1926.1408 requires at least 10 feet of clearance for lines up to 50 kV when the line is energized. Greater voltages require greater clearances; de-energizing and grounding is the safest option.
Trích dẫn luật: 29 CFR 1926.1408Luyện miễn phí toàn bộ 1605 câu hỏi — không cần đăng ký.
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