A manual emergency lighting and power system is one in which a single manual operation, such as the manual operation of a switch from an “off” to an “on” position, is necessary to cause the emergency power source to supply power to the emergency loads.
source: CGD 74-125A, 47 FR 15267, Apr. 8, 1982, unless otherwise noted.
cite as: 46 CFR 112.01-5