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 ELECTRICAL
Power Plants-Continued
n Control Switchboards:
poor physical condition
dirty
Wiring and Connections
lack of neatness
looseness
Fuses in Control Wiring System: improper size
Indicating Lamps: not operating
Mimic Buses
illegible
inaccurate
7.2.20 Rectifiers: Comply with all current safety precautions. Rectifier cabinets
and enclosures contain energized electrical equipment. DO NOT tighten wires, make
adjustments, or disturb any valve, control, or other adjustment device. Check for:
ENCLOSURES
n General Area Housekeeping:
dust
dirt
trash
debris
n Exterior:
mechanical damage
excessive corrosion (more than two rust spots 1/2 inch diameter)
corroded, binding or unlubricated hinges and latches
n Interior:
rust
corrosion
moisture condensation
indications of excessive heating
7-42
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