Which conductor size has a cubic volume of 3 cubic inches according to NEC table 314.16B?

Prepare for the Get Wired 101 exam. Utilize flashcards and multiple choice questions, each with hints and detailed answers. Get ready for your exam success!

Multiple Choice

Which conductor size has a cubic volume of 3 cubic inches according to NEC table 314.16B?

Explanation:
The concept being tested is box-fill calculations: NEC 314.16(B) assigns a cubic inch value to each conductor size, which is the space one conductor of that size requires inside a box. According to that table, the unit volume for an eight AWG conductor is 3 cubic inches. So eight AWG matches a cubic volume of 3 in³ per conductor, which is why it’s the correct choice. In practice, you would multiply this 3 in³ by the total number of conductors (plus any required counts for grounding conductors, device yokes, and internal clamps) to determine the minimum box volume needed.

The concept being tested is box-fill calculations: NEC 314.16(B) assigns a cubic inch value to each conductor size, which is the space one conductor of that size requires inside a box. According to that table, the unit volume for an eight AWG conductor is 3 cubic inches. So eight AWG matches a cubic volume of 3 in³ per conductor, which is why it’s the correct choice. In practice, you would multiply this 3 in³ by the total number of conductors (plus any required counts for grounding conductors, device yokes, and internal clamps) to determine the minimum box volume needed.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy