Quantcast Replace/Repair Ship Service Switchboard

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TM 55-1905-223-24-18-2
MOTOR CONTROL CENTERS/SWITCHBOARDS |
3-200. Replace/Repair Ship Service Switchboard.
This task covers:
a. Removal
b. Repair
c. Replacement
INITIAL SETUP :
Tools
Equipment Condition
Tool kit, electrician's,
Power to ship service switchboard OFF,
locked out, and tagged "Out of
Lifting fixture, P/N ST-125
Service - Do Not Operate".
All switchboard circuit breakers OFF.
Materials/Parts
Circuit breakers, indicators, switches,
meters, variable resistors, voltage
Warning tag, Item 1, Appendix C
regulators, rheostat, transformers,
cartridge fuses, block fuseholders,
relays and terminal boards removed
as specified in paras. 2-291,
paras. 2-292, 2-293, 2-294,
2-295, 2-296, and 2-297.
WARNING
Electrocution, serious injury, or equipment damage can result
from contact with live electrical circuits. Before beginning work
on electrical systems, ensure electrical power is OFF, locked out
and tagged to prevent turn on during maintenance.
REMOVAL
NOTE
The following procedure describes actions required to make ship
service switchboard ready for removal from vessel.
a. Disconnect and tag all wiring to ship service switchboard buses and terminal boards.
b. Remove associated hardware from cable entrance plates and remove plates with attached electrical
cables.
c. Remove associated hardware holding switchboard to channel mounting base.
Change 1
3-636


 


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