Overcurrent Proctection

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m.pague

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Location
Mississippi
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Military retired
I’m attending an Electrician school in my area, and had the following question on a test. I discussed it with the instructor and still not clear of the correct answer(s):
Question: Branch circuit distribution equipment shall be installed in each mobile home and shall include:
1. Overcurrent protection for each branch circuit
2. Circuit breakers
3. Fuses
4. All of the above

2020 NEC Article 550.11(B) Branch-circuit distribution equipment shall be installed in each mobile home and shall include overcurrent protection for each branch circuit consisting of either circuit breakers or fuses.
My answers were 2 and 3. Reading NEC, I do not see a separation using a comma or semicolon after “….branch circuit.” I see overcurrent protection as a procedure, not as equipment. Breakers, fuses, GFCIs, etc., as provided in Article 240.6.

Need additional clarification.

Thanks Everyone
 
Bad question, IMO.... a fuse and / or circuit breaker is an overcurrent protection device. You don't have to have fuses but you could. The question says shall include..... Imo, #1 is the answer.

#2 is normally the case but again it doesn't have to be circuit breakers. And #4 means , IMO, that you would need all of them. So #1 is my choice.
 
m.pague said:
I’m attending an Electrician school in my area, and had the following question on a test. I discussed it with the instructor and still not clear of the correct answer(s):
Question: Branch circuit distribution equipment shall be installed in each mobile home and shall include:
1. Overcurrent protection for each branch circuit
2. Circuit breakers
3. Fuses
4. All of the above

2020 NEC Article 550.11(B) Branch-circuit distribution equipment shall be installed in each mobile home and shall include overcurrent protection for each branch circuit consisting of either circuit breakers or fuses.
My answers were 2 and 3. Reading NEC, I do not see a separation using a comma or semicolon after “….branch circuit.” I see overcurrent protection as a procedure, not as equipment. Breakers, fuses, GFCIs, etc., as provided in Article 240.6.

Need additional clarification.

Thanks Everyone
Click to expand...
I would say #1.
Branch circuits will always require protection from overcurrent.

Fuses or Circuit breakers are just a way of providing that protection.

JAP>
 
Dennis Alwon said:
Bad question, IMO.... a fuse and / or circuit breaker is an overcurrent protection device. You don't have to have fuses but you could. The question says shall include..... Imo, #1 is the answer.

#2 is normally the case but again it doesn't have to be circuit breakers. And #4 means , IMO, that you would need all of them. So #1 is my choice.
Click to expand...
Thank you very much Dennis.
 
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