POWER DISTRIBUTION AND PROTECTION

TM 9-6920-737-10

POWER DISTRIBUTION AND PROTECTION

External power is connected at entry panels in the Integration Shelter (1) and the Computer Shelter (2). Power for the

electronics equipment in the Computer and Trainer Shelters is fed from the Electronics Power Distribution Panel (3) in

the Computer Shelter. The panel contains a main circuit breaker and seven subcircuit breakers for the protection of the

individual electronic sub-system circuits.

Utility power for lighting, wall plugs and air conditioners in the Computer and Trainer Shelters is fed from the Utility Power

Distribution Panel (4) in the Computer Shelter. The panel (4) contains a main circuit breaker and ten subcircuit breakers

for individual circuit protection of the lighting, wall plugs and air conditioners. One of the circuits is used to feed the Fire

Protection Panel (5) in the Trainer Shelter.

Utility power for lighting, wall plugs and the air conditioner in the Integration Shelter is fed from the Utility Power

Distribution Panel (6) in the Integration Shelter. The panel contains a main circuit breaker and four subcircuit breakers

for the protection of the lighting, wall plug and air conditioner circuits.

All of the circuit breakers provide on/off control as well as overload protection. If a circuit breaker trips because of an

overload protection. If a circuit breaker trips because of an overload, a red flag appears on the switch. To reset, the

circuit breaker must be set to OFF, then ON again.

Power Monitor Panel (7) initiates automatic power shutdown in the even of external power faults. A control circuit, fed

from the Fire Protection Panel (5), shuts down all AC Power in the event of a fire alarm or manual emergency shutdown.

Emergency off push-button switches (8), (9), and (10) are located on the walls of the Computer and Trainer Shelters.

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