Where the Ungrounded Supply Conductors Are Larger Than 1100 Kcmil

Multiple Choice

Where the ungrounded supply conductors are larger than 1100 kcmil copper or 1750 kcmil aluminum, the supply-side bonding jumper shall have an area not less than ____ of the area of the largest ungrounded supply conductor or equivalent area for parallel supply conductors.

A) 10½%
B) 12½%
C) 15½%
D) 18½%