Question 12094 of 749 · Maryland Journeyperson Electrician Exam
NEC 2020/2023 220.83(B): an existing 2,000 ft2 dwelling (two small-appliance and one laundry circuit, 11 kW range, 5.5 kW dryer) adds a 6,000 VA central AC. What is the calculated load?
Exactly one answer is correct.
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Correct answer to question 12094
- B: 21,600 VA
Explanation
Where heating or AC is added, that load counts at 100 % (6,000 VA). The other loads, 27,000 VA, take the first 8 kVA at 100 % and the remainder at 40 % = 15,600 VA. Total 21,600 VA.
More questions: Load Calculations
- 12095Under NEC 2020/2023 220.83, what portion of the existing general load is counted at 100 % before the 40 % factor applies?
- 12098Which is a condition for using the NEC 2020/2023 multifamily optional method of 220.84?
- 12099An existing 200 A service shows a 1-year maximum demand of 110 A. A 40 A load is added. Using NEC 2020/2023 220.87, what is the resulting calculated load?
- 12101Under NEC 2020/2023 220.60, a dwelling has 10 kW of electric heat and a 5,000 VA AC unit that do not run together. What load is used in the standard method?
- 12102An 8-unit building has 900 ft2 units, each with two small-appliance and one laundry circuit. What is the NEC 2020/2023 standard method demand for these loads?
- 12104A small store has 40 duplex receptacles. What receptacle load is used under the NEC 2020 or 2023?