NEC 2026 Compatible

A 2 AWG copper conductor (rated 115A in Table 310.16 at 75°C) is used as a feeder. A tap conductor is taken from this feeder. If the tap conductor is 10 feet long and protected by a 40A overcurrent device at its termination, what is the minimum ampacity required for the tap conductor according to NEC 240.21(B)(1)?

Master Level📋 NEC 240.21(B)(1)Tap Rules
A

30A

B

38.33A

C

40A

D

115A

Explanation & Direct Citation

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    Tap Rules Practice Question: NEC 240.21(B)(1) | SparkShift | SparkShift