Exam 17: Industrial Locations

Conductors used in the secondary circuit of electric welders shall have ____.

To calculate the ampacity of conductors supplying several motors (feeder conductors), multiply the largest motor full-load current (FLC) rating by ____% and add the FLC ratings of all other motors (or loads) in the group.

Overload is defined as operation of equipment in excess of normal, full-load rating, or of a conductor ____ that, when it persists for a sufficient length of time, would cause damage or dangerous overheating.

A ____ is the minimum size allowed if the overcurrent protection on the tap conductor's line side is 600 amperes.

If 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 ____ percent of the area of the largest ungrounded supply conductor or equivalent area for parallel supply conductors.