Lập kế hoạch & Dự toánCâu 373 / 521
What unit load per square foot is used for general lighting in a dwelling unit?
a.2 VA/ft²
b.3 VA/ft²
c.1.5 VA/ft²
d.5 VA/ft²
Giải thích
Dwelling-unit general lighting and general-use receptacles are calculated at 3 VA/ft². The other values do not match the code figure for dwellings.
Trích dẫn luật: 2023 NEC §220.41Luyện miễn phí toàn bộ 521 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- A 1,500 ft² dwelling's standard-method calculation yields 13,100 VA on 240 V (about 55 A). What is the minimum service disconnect rating required?
- When four or more fastened-in-place appliances (other than the range, dryer, space heating, and air conditioning) are on the same feeder in a dwelling, what demand factor may be applied to their total nameplate load?
- What is the minimum number of 20 A small-appliance branch circuits required to serve the kitchen, dining, and similar areas of a dwelling?
- Which loads may be added to the general lighting load and then subjected together to the 220.42 general-lighting demand factors?
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- A household range has a calculated demand of 8,000 VA. What maximum value may be used for the neutral (grounded) feeder load for this range?
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