coty_brown
Member
- Location
- New Mexico
On the NEC test there is a question regarding a 600amp feeding to a 200amp panel with a 25 foot run. How do I calculate the wire size needed?
Help with Feeder Tap question
- Thread starter coty_brown
- Start date
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For "test" questions we normally ask that you make an attempt showing what you answer is and why. I will tell you that you need to look in Article 310 and 240.
I would ask that you look at your question again and see if there is a key word missing.
I would ask that you look at your question again and see if there is a key word missing.
- Location
- Lockport, IL
- Occupation
- Retired Electrical Engineer
I agree with the need to check the test question's wording. From what you showed us, I am not convinced we are talking about a tap situation at all. What, for example, is the 600 amp thing? A breaker? A feeder? Also, where and how is the 200 amp connection made? Is there an overcurrent device at the point of connection?
Let me add the suggestion that you be wary of a possible trick question. For example, if you are looking for the size of the wire that feeds the 200 amp panel, do you think it matters whether the tap rules apply?
Let me add the suggestion that you be wary of a possible trick question. For example, if you are looking for the size of the wire that feeds the 200 amp panel, do you think it matters whether the tap rules apply?
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