RyanMartin94
New member
- Location
- Portland, OR
Hello!
First let me say how grateful I am for all your help over the years. Your courses have been a great help to me and I continue using them to help up-and-coming electrical professionals learn the basics of code and theory.
An apprentice and I were studying your Electrical Exam Prep book (Illustrated), and I notice what might be a few mistakes on pages 388 and 389. Of course, I could be wrong here but I wanted to run this by you to get your feedback...
In the first 'Primary Overcurrent Protection Example 1" on page 388, the answer to the equation is shown as (b)4 amperes. It's not the calculation I'm wondering about, but the selection of 4 amperes as the answer. First, the question doesn't specify whether it's a breaker or fuse, which is a problem since there are some additional standard fuse sizes mentioned in 240.6(A). However, 4 amperes is not listed as a standard OCPD size in either a breaker or a fuse, and since the question is asking about the maximum size of the OCPD, I think the answer should be 15 amperes if breaker and 6 amperes if fuse.
The same logic applies to 'Example 2', in that the maximum should be 15 amperes, which is not listed as a potential answer.
Please advise.
First let me say how grateful I am for all your help over the years. Your courses have been a great help to me and I continue using them to help up-and-coming electrical professionals learn the basics of code and theory.
An apprentice and I were studying your Electrical Exam Prep book (Illustrated), and I notice what might be a few mistakes on pages 388 and 389. Of course, I could be wrong here but I wanted to run this by you to get your feedback...
In the first 'Primary Overcurrent Protection Example 1" on page 388, the answer to the equation is shown as (b)4 amperes. It's not the calculation I'm wondering about, but the selection of 4 amperes as the answer. First, the question doesn't specify whether it's a breaker or fuse, which is a problem since there are some additional standard fuse sizes mentioned in 240.6(A). However, 4 amperes is not listed as a standard OCPD size in either a breaker or a fuse, and since the question is asking about the maximum size of the OCPD, I think the answer should be 15 amperes if breaker and 6 amperes if fuse.
The same logic applies to 'Example 2', in that the maximum should be 15 amperes, which is not listed as a potential answer.
Please advise.
