CHAPTER 6 LIGHTING SYSTEM
Section I. General
6-1 General. The lighting systems onboard the barge provide interior and exterior lighting Normal and emergency
interior lighting is provided In the deckhouse ROWPU space, dayroom, workshop, and voids. Exterior lighting consists of
searchlights and floodlights for use at night or during reduced visibility. Lights on the weatherdecks and standard
navigation and status lights are for use during ROWPU operations and barge towing Equipment specifications,
maintenance information, and manufacturers' service manuals are contained In TM 55-1930-209-14&P-10.
Section II. Interior lighting system
6-2 Description. The interior lighting system provides both normal and emergency lighting in the deckhouse ROWPU
space, dayroom, workshop, and voids. The normal lighting system arrangement is shown In Figure 6-1, and components
are listed in Table 6-1. The emergency lighting system arrangement is shown in Figure 6-2, and its components are listed
in Table 6-2.
6-3 Description of operation. Power is provided to the normal interior lighting system in the deckhouse and voids by
either service generator, the auxiliary generator, or shore power. ROWPU space and void lights are operated from their
corresponding lighting panels by closing circuit breakers. Dayroom and workshop lights are operated and controlled from
bulkhead-mounted rotary switches The ROWPU space port and starboard doors and dayroom door to the weatherdeck
are each equipped with an interlocking switch that automatically turns off these lights when one of these doors is opened.
In the event that normal power is lost, an Inverter automatically converts 24 Vdc battery bank power to 120 Vac power.
This power is supplied to the emergency panel for emergency lighting (fluorescent and red Incandescent lights) and for
communications (marine radio and telephone system).
A green lamp (Barge 1) or blue lamp (Barges 2 and 3), located on the forward panel of the switchboard, indicates that
emergency power from the battery bank is available. An emergency light switch is located on the switchboard and next to
each door to the weatherdeck so that emergency lights can be readily turned ON/OFF.