A. System FunctionThe dc electrical-load distribution system supplies the aircraft electrical systems from the 28 V dc busbars.
B. System ComponentsThe primary components of the system are the:
- Avionics circuit-break panel (Ref. Fig. 1)
- Left circuit-breaker panel (Ref. Fig. 1)
- Right circuit-breaker panel (Ref. Fig. 1)
C. System OperationThe system busbars are supplied with dc power from the:
- DC power control and indication system (Ref. 24-32-00)
- Standby dc power system (Ref. 24-34-00)
- Aircraft batteries (Ref. 24-35-00)
- External dc power (Ref. 24-40-00)
The system busbars supply the aircraft dc electrical circuits through the circuit breakers.