installation requires a shore-power station, plugs, and
Another method being used on newer ships to
connecting cables.
prepare casualty power cable ends is shown in figure
2-21. The use of the plug (SYM 1049) makes marking
of the individual phases unnecessary since the keyed
Shore Power Station
segment prevents improper connections.
Ashore-power station (fig. 2-23, view A) is located
Fixed terminals are connected to cables which
at or near a suitable weather deck location. Portable
penetrate watertight decks (riser terminals) and
cables can be attached to the weather deck location from
bulkheads (bulkhead terminals). These cables are of
shore or a ship alongside. The same station can be used
type LSTSGU-75. They are capable of carrying 148 A
to supply power from the ship to a ship alongside. The
at 40C and 136 A at 50C. These fixed terminals are
shore-power station has a receptacle assembly
marked by nameplates (fig. 2-22) indicating the terminal
arrangement as shown in figure 2-23, view B. The
location and the location of the other end.
shore-power system is designed to handle only enough
Portable casualty power cables should be rigged
power to operate necessary machinery and provide
only when required for use or for practice in rigging the
illumination for habitability.
casualty power system. At all other times, they should
SHORE POWER PLUG.-- A shore-power plug is
be stowed in the cable rack indicated on the cable tag.
installed on the end of shore-power cables for ease of
When portable casualty power cables are rigged,
making the shore-power connection. A shore-power
connections should be made from the load to the supply
to avoid handling energized cables.
Casualty power cables are a very important part of
the ship's equipment. Each year the cables and terminal
connections should be closely inspected and tested. If
you are assigned to inspect casualty power cables,
follow the step-by-step procedures listed on the
appropriate maintenance requirement card. It tells what
tools and material the job will require, safety
precautions to observe, and procedures to follow.
Refer to chapter 3 of this manual for a description
of the casualty power distribution system.
SHORE POWER
A means of supplying electrical power to a ship
from an external source is known as shore power. This
Figure 2-22.--Casualty power fixed terminal cable tag.
Figure 2-23.--Shore-power station and receptacle assembly.
2-23
