Section 250.97 requires a bonding jumper to be used to provide continuity around knockouts, except where the largest knockout is used or the enclosure is listed for use without bonding. This applies for circuits of which of the following voltage systems?I. 120/240 V, 1Ø, 3-W II. 208Y/120 V, 3Ø, 4-W III. 480Y/277 V, 3Ø, 4-W
Select one:
a.I only
b.II only
c.III only
d.II & III only
e.I & II only
