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TITLE 46 - SHIPPING
CHAPTER I - COAST GUARD, DEPARTMENT OF HOMELAND SECURITY
SUBCHAPTER J - ELECTRICAL ENGINEERING
PART 111 - ELECTRIC SYSTEMS - GENERAL REQUIREMENTS
111.97 - 9 - Overcurrent protection.
Overcurrent devices must be arranged to isolate a fault with as little disruption of the system as possible. The relationship between the load and the rating or setting of overcurrent devices must meet the following: (a) The rating or setting of each feeder overcurrent device must be not less than 200 percent of its maximum load.
(b) The rating or setting of a branch circuit overcurrent device must be not more than 25 percent of that of the feeder overcurrent device.
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