Figure 4-8.--Fluorescent lamps with auxiliary equipment.
ship, yellow lighting in lieu of red is used to eliminate
The use of fluorescent lamps over 20 watts has been
limited to special installations. For example, 60-watt
confusion of the red navigation lights with other red
lamps are being used in 180-watt fixtures in hangar
lights. Red or yellow lighting is achieved through the
spaces, over workbenches in weapons repair shops, and
use of red or yellow plastic sleeves that slide over the
in dock basins on landing ship docks (LSDs).
lamps. For 180-watt fixtures, red or yellow lighting is
achieved by the use of red or yellow windows. The
Fluorescent lamps installed aboard ship are the
Navy has standardized three lamp sizes:
hot-cathode, preheat starting type. A fluorescent lamp
equipped with a glow-switch starter is illustrated in
1. 8 watts, used primarily in berthing spaces and
figure 4-8, view A. The glow-switch starter is
desk lamps
essentially a glow lamp containing neon or argon gas
2. 15 watts, used chiefly as mirror lights in berthing
and two metallic electrodes. One electrode has a fixed
spaces and staterooms
contact, and the other electrode is a U-shaped, bimetal
3. 20 watts, used in one, two, or three lamp fixtures
strip having a movable contact. These contacts are
throughout the ship for general lighting
normally open.
4-9
