[Code of Federal Regulations] [Title 46, Volume 4] [Revised as of October 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 46CFR112.30-5] [Page 258] TITLE 46_SHIPPING (This book contains parts 90 to 139) CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 112_EMERGENCY LIGHTING AND POWER SYSTEMS--Table of Contents Subpart 112.30_Emergency Systems Having an Automatically Connected Storage Battery as the Sole Emergency Power Source Sec. 112.30-5 Transfer of emergency loads. If there is a reduction of potential of the normal source by 15 to 40 percent, the emergency loads under Sec. 112.15-5 must transfer automatically from the normal source to the emergency power source.