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Wednesday, July 17, 2019
Question:
Circuit Question - I have bathroom between to rooms that share 4 inch stud wall and I know that bath will have its own 20 amp dedicated circuits but rooms around bath can have 15 amp circuit or it needs to be 20 amp? my concern is that if I use 15 amp circuit for room around bath then 14/2 NM cable will be passing through walls which is shared by bathroom and rooms around it.
Al Dhan
A
Answer:
Hey Al thanks for your question. Dwelling unit branch circuits have specific sizing rules based on the typical loads they are expected to supply such as in a bathroom, compared to a bedroom or living room as stated in 210.11(C)(3). It is not about the size of the conductor or its overcurrent protection in a common wall cavity. If the other rooms are bedrooms then 15 ampere circuits are acceptable.