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NEC 422

Question 9

Multiple Choice

NEC 422.13 requires that the branch circuit overcurrent device and conductors  for a storage-type electric water heater with a capacity of 120 gallons (450 L) or less must be sized at not less than ____ percent of the rating of the water heater .


A) 80
B) 100
C) 125
D) 150

Correct Answer:

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