Casualty Power Flashcards
What is casualty power?
Makes temporary power connections if the permanently installed ships service and emergency distribution cables are damaged.
What is the purpose of casualty power?
To keep the ship afloat and get out of a danger area, supplying power to vital pieces of equipment.
What are portable welding sets and portable submersible pump outlets rated at?
450 volts / 25 amperes / 3 phase
While casualty power is ran by the electricians onboard a cutter, who is ultimately responsible to ensure that the system is ready to be energized and directs that such action to be taken?
DCA (Damage Control Assistant)
Where total capacity of the generators supplying a switchboard is greater then _______ kw, two vertical port risers and 2 vertical starboard riser are provided.
500
Portable cable has a rating of ____ amperes and a casualty power application has a rating of ____ amperes?
93 and 200
The current system used for phase identification for casualty power is similar to the old method with what difference?
Instead of cotton cords it uses O-Rings and shrink tubing.
Megger readings of casualty power cables should be taken?
Annually
NSTM Chapter ____ is used for making repairs to cable?
320
What is the end fitting on casualty power cables that help prevent fraying?
Copper Ferrule
Each Emergency switchboard, ship’s service switchboard, and interior communications switchboard having a 450 volt 60 Hz is provided through a ________ circuit breaker.
AQB-LF
Casualty power cables are stowed in __________________, in lengths of _____ ft equal to approximately _____% and no longer then ____ft?
Damage Repair Lockers
150
25
600
Casualty power tags provide what information?
Location of what storage rack and the length in feet.
Permanently installed cables which provide vertical runs from generator spaces to the horizontal cable runs in casualty power system are called?
Risers
