Mạch nhánh & Đi dâyCâu 125 / 521
A 125-volt, 20-ampere receptacle installed in the unfinished portion of a dwelling basement used for storage or a work area requires what protection?
a.AFCI only
b.GFCI
c.No protection
d.Isolated ground
Giải thích
Section 210.8(A)(5) requires GFCI protection for receptacles in unfinished basement areas not intended as habitable rooms, such as storage and work areas, because of the damp concrete environment. AFCI alone does not provide shock protection; 'no protection' and an isolated ground do not satisfy the rule.
Trích dẫn luật: 2023 NEC §210.8(A)(5)Luyện miễn phí toàn bộ 521 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- A dwelling bathroom receptacle outlet must be supplied by a branch circuit of at least what rating that serves only bathroom receptacle outlets?
- A 125-volt, 20-ampere receptacle installed in a dwelling bathroom must have what protection?
- Under 210.8(A), a 125-volt receptacle located within how many feet of a dwelling laundry, utility, or wet bar sink (measured from the outside edge of the sink) requires GFCI protection?
- Receptacles installed in a dwelling attached garage at 125 volts, 20 amperes must be provided with what protection?
- Under 210.8(A), outdoor receptacles at a dwelling rated 125 volts, 20 amperes generally require what protection?
- Under 210.8(A), a 125-volt, 20-ampere receptacle that serves a dwelling kitchen countertop surface requires what protection?
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