C.F.R. » Title 46 » CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY › SUBCHAPTER J—ELECTRICAL ENGINEERING › PART 112—EMERGENCY LIGHTING AND POWER SYSTEMS › Subpart 112.30—Emergency Systems Having an Automatically Connected Storage Battery as the Sole Emergency Power Source

46 C.F.R. § 112.30-5

Transfer of emergency loads

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If there is a reduction of potential of the normal source by 15 to 40 percent, the emergency loads under § 112.15-5 must transfer automatically from the normal source to the emergency power source.