25-14-00Page 1

 Rear Panel 120VU - Component Location
 Figure 001
 EFF :  ALL  25-14-00 Page 2 
Feb 01/98
 CES 

 Rear Panel 120VU
 Figure 002
 EFF :  ALL  25-14-00 Page 3 
Feb 01/98
 CES 

 C. Rack Upper Section This section of the rack houses, split over two panels, all the distribution circuit breakers protecting the electrical lines supplying the systems. These circuit breakers are grouped per system, their functional designation is given and they are geographically located by means of placards.
 D. Access to the various components Access to the AC and DC electrical power centers is gained by removing the cover plates. Access to the inside of the circuit breaker panels is gained by opening the hinged panels.
 EFF : ALL

25-14-00Page 4

 COCKPIT ADDITIONAL ELECTRICAL SUPPLY - DESCRIPTION AND OPERATION
________________________________________________________________
 1.
 General

_______ The system of the cockpit additional electrical-supply supplies 115VAC/60Hz power to the CAPT and F/O outlets by means of the static inverter. The static inverter converts 28VDC input power to 115VAC/60Hz output power.

 2.
 Component Location

__________________ (Ref. Fig. 001) -------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL | ZONE | ACCESS | ATA | | | | DOOR | REF.
 -------------------------------------------------------------------------------3NA STATIC INVERTER 122 811 25.18.51 4NA OUTLET-115/60HZ, F/O 16VU 212 5NA OUTLET-115/60HZ, CAPT 17VU 211
 3. Description
___________
 (Ref. Fig. 001)

 -
The circuit breaker (1NA) is installed on the rear circuit-breaker panel 121VU at the position 25K, and protects the system of the cockpit additional electrical-supply.

 -
The circuit breaker (2NA) is installed on the rear circuit-breaker panel 121VU at the position 23K, and protects the CAPT and F/O outlets.

 -
The static inverter (3NA) is installed in the avionics compartment in zone

 122.
 -The CAPT and F/O outlets (4NA and 5NA) are installed of each side of the cockpit, on the CAPT hand-microphone panel 17VU and on the F/O hand-microphone panel 16VU.
 4. Power Supply
____________ (Ref. Fig. 002) The service bus 210PP supplies 28VDC through the circuit breaker (1NA) to the static inverter (3NA). When a plug is connected to the CAPT and/or F/O outlet(s) (4NA and/or 5NA), the contact in the outlet(s) closes and the remote on/off control of the static inverter is supplied. The 115VAC/60Hz power is supplied by the static inverter through the circuit breaker (2NA) to the CAPT and/or F/O outlet(s) (4NA and/or 5NA).

 Component Location
 Figure 001
 EFF :  401-499,  25-18-00 Page 2 
Aug 01/05
 CES 

 Electrical Schematic
 Figure 002
 EFF :  401-499,  25-18-00 Page 3 
Aug 01/05
 CES 

 STATIC INVERTER - REMOVAL/INSTALLATION
______________________________________
 TASK 25-18-51-000-001 Removal of the Static Inverter
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
 No specific 1 ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE

 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001  Energize the Ground Service Network from the External Power 25-18-51-991-001 Fig. 401
 3. Job Set-up
__________ Subtask 25-18-51-861-050
 A. Energize the ground service network
 (Ref. TASK 24-42-00-861-001).

 Subtask 25-18-51-865-050
 B. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU PILOTS OUTLETS/STAT INV 1NA K25 121VU PILOTS OUTLETS/115V 60HZ 2NA K23

 Subtask 25-18-51-010-050
　
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