Table 250.102(C)(1) Grounded Conductor, Main Bonding Jumper, System Bonding Jumper,
and Supply-Side Bonding Jumper for Alternating-Current Systems
The supply-side bonding jumper shall not be smaller than specified in Table 250.102(C)(1).
Where the ungrounded supply conductors are paralleled in two or more raceways or
cables, and an individual supply-side bonding jumper is used for bonding these raceways
or cables, the size of the supply-side bonding jumper for each raceway or cable shall
be selected from Table 250.102(C)(1) based on the size of the ungrounded supply
conductors in each raceway or cable. A single supply-side bonding jumper installed
for bonding two or more raceways or cables shall be sized in accordance with
250.102(C)(1). Informational Note No. 1: The term supply conductors includes ungrounded conductors
that do not have overcurrent protection on their supply side and terminate at service
equipment or the first disconnecting means of a separately derived system. Informational Note No. 2: See Chapter 9, Table 8, for the circular mil area of
conductors 18 AWG through 4/0 AWG.
Size of Largest Ungrounded Conductors or Equivalent Area for
Parallel Conductors (AWG/kcmil)
Size of Grounded Conductor or Bonding Jumper (AWG/kcmil)