NEC 2026 Compatible
A 100A, 120/240V, single-phase service is installed. The main bonding jumper is required to be sized based on the service-entrance conductors. If the service-entrance conductors are 2 AWG copper, what is the minimum size copper main bonding jumper required according to NEC 250.28(D)(1)?
Journeyman Level📋 NEC 250.28(D)(1) and Table 250.66Grounding & Bonding
A
No. 8 AWG copper
B
No. 6 AWG copper
C
No. 4 AWG copper
D
No. 2 AWG copper
Explanation & Direct Citation
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