An toànCâu 478 / 521
As an alternative to GFCI protection on certain construction-site receptacles, an employer may instead implement:
a.An assured equipment grounding conductor program with documented, scheduled inspections and continuity tests of cords and equipment
b.No protection at all, relying on worker care
c.Doubling the fuse or breaker size on the circuit
d.A lockout/tagout program in place of any grounding checks
Giải thích
OSHA allows an assured equipment grounding conductor program—documented, scheduled continuity and terminal tests on cords and equipment—as an alternative to GFCI on some receptacles. Providing no protection, oversizing overcurrent devices, or substituting a lockout program does not satisfy the ground-fault protection requirement.
Luyện 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:
- On de-energized conductors or equipment where accidental re-energization or induced voltage is possible, workers protect themselves by applying:
- In a dwelling, 125-volt 15- and 20-ampere receptacles must be GFCI-protected in which of the following groups of locations?
- What is the fundamental difference between AFCI and GFCI protection?
- Flexible cords and extension cords used on a construction site must be:
- Which set of actions best establishes an 'electrically safe work condition' before hands-on work begins?
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Đội Ngũ Biên Tập PrepPass · Đối chiếu với California CSLB C-10 Electrical Trade Examination · Quy trình kiểm tra