An toànCâu 479 / 521
Which set of actions best establishes an 'electrically safe work condition' before hands-on work begins?
a.Putting on rubber gloves and working the circuit while it is still energized
b.Posting a warning sign near the equipment
c.De-energize the source, lock and tag out, test for the absence of voltage, and apply temporary grounds where required
d.Reducing the connected load to lower the current
Giải thích
An electrically safe work condition is established by de-energizing, locking/tagging out, verifying zero voltage with a rated tester, and applying grounds where required. Gloved live work, a sign, or reducing load do not remove the energy source and therefore do not create a safe work condition.
Trích dẫn luật: Cal/OSHA Title 8 §3314Luyện miễn phí toàn bộ 521 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- Immediately after you open a disconnect switch, all the conductors on the load side should be treated as:
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