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TM 5511905-223-24-18-1
2-297.
Repair Ship Service Switchboard Fuse Panel. (FIGURE 2-218)
This task covers:
a. Disassembly, b. Repair, c. Assembly, d. Test.
INITIAL SETUP
Tools
Equipment Condition
Tool kit, electrician's,
Power to main switchboard OFF, locked
out, and tagged "Cut of Service - Do
Not Operate."
All switchboard circuit breakers OFF.
Materials/Parts
Cartridge fuses P/N BAF 3
Block fuseholder P/N 2808
Voltage transformer P/N 46012-240,
P/N 460R-480
Power transformer P/N B050BTZ13
Current transformer P/N 74R-251
Current transformer P/N 100R-102
Terminal boards P/N EB27A04S,
P/N CR151B2, P/N CR1S1B6
Voltage relay P/N BE4-27/59-3A1N3
Current relay P/N BE4-51-1E1A1
Reverse power relay P/N BE4-32-3A1N1
Electromagnetic relay P/N PM17AY120V
Electrical cover P/N 35D203
Warning tags, Item 1, Appendix C
WARNING
Electrocution, serious injury, or equipment
damage can result from contact with live
e l e c t r i c a l circuits. Before beginning work
on electrical systems, ensure electrical
power is OFF, locked out and tagged to
prevent turn on during maintenance.
a. Open door panels (1).
Remove cartridge fuses from block fuseholders (3).
b.
Tag and disconnect wiring to block fuseholders (3).
C.
Change 1
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