Branch Circuits & WiringQuestion 188 of 521
A single unbroken conductor passes straight through a box without being spliced or terminated. For box fill, it is counted as how many conductors?
a.Two
b.Zero
c.One-half
d.One
Explanation
Per 314.16(B)(1), each conductor that runs through the box without splice or termination is counted once. It is not exempt (zero) and not doubled; a conductor is only counted twice when it is looped unbroken with a length of at least twice the minimum required for free conductors.
Law Reference: 2023 NEC §314.16(B)(1)Practice all 521 questions free — no signup required.
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