-
the Direct Current Bus 1 (DC BUS 1),

 -
the Direct Current Battery Bus (DC BAT BUS),

 -
the Direct Current Essential Bus (DC ESS BUS),

 -
the Direct Current Sheddable Essential Bus (DC SHED ESS BUS).
 Two batteries are associated with the DC BAT BUS.
 The TR 2 powered from the AC BUS 2 supplies the Direct Current Bus 2 (DC
 BUS 2) through its contactor.
 In case of loss of the TR 1 or the TR 2, a third Essential Transformer
 Rectifier (ESS TR) powered from the AC BUS 1, supplies through its
 contactor:

 -
the DC ESS BUS,

 -
the DC SHED ESS BUS.
 In certain failure configurations, the AC ESS BUS and the AC SHED ESS BUS
 plus, via the ESS TR, the DC ESS BUS and the DC SHED ESS BUS can be
 supplied by:

 -
the AC BUS 2 if the AC BUS 1 is lost,

 -
the CSM/G more especially in emergency configuration or smoke emergency configuration.

R **ON A/C 061-099, 103-149, 151-199, 202-299, 301-399, 401-499,
 Two sheddable AC and DC busbars are powered respectively by the GLC 2 and the TR 2 and controlled by two contactors. These AC busbars are automatically shedded in the single generator configuration and the DC busbars in the single generator and single TR configurations.
 **ON A/C ALL
 2. Component Location
__________________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 A. Main Component Location
 (Ref. Fig. 002)
 **ON A/C 001-049, 051-060, 101-102, 201-201,
 (Ref. Fig. 003)

 Electrical Power - General Schematic
 Figure 001

R 1EFF : 001-049, 051-060, 101-102, 201-201, 1 24-00-00Page 3/4 1 1 May 01/05 1 1 1CES
1

 Electrical Power - General Schematic
 Figure 001A

R 1EFF : 061-099, 103-105, 151-158, 202-209, 1 24-00-00Page 5/6 1 1 May 01/05 1 1 1CES
1

 Electrical Power - General Schematic
 Figure 001B

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1R Electrical Power - General Schematic R Figure 001C

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 Electrical Power - Component Location
 Figure 002

R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 24-00-00Page 11 1201-299, 301-399, 1Aug 01/05 1 1 1CES 1

R  Electrical Power - Component Location 
R  Figure 002A
 1EFF :  401-499,  1  24-00-00 Page 12 
1  1  Aug 01/05
 1  1
 1CES  1

 Control and Indicating - Component Location
 Figure 003

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1 **ON A/C 061-099, 103-105, 151-158, 202-209,

 (Ref. Fig. 003A)
 **ON A/C 106-149, 159-199, 210-299, 301-399,

 (Ref. Fig. 003B) R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 -------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA | | | | DOOR | REF. -------------------------------------------------------------------------------
1PE  TR-ESS  125  812  24-34-51
 3XB  STAT INV  126  822  24-28-51
 1XE  CONTROL UNIT-CSM/G  125  812  24-24-34
 8XE  CSM/G  148  734  24-24-51
 1XG  GPCU  92VU 121  811  24-41-34
 20XG  RCPT-EXT PWR  120  121AL  24-41-51
 1XS  GCU-APU  91VU 121  811  24-23-34
 8XS  GEN-APU  310  24-23-51
 1XU1  GCU-1  91VU 121  811  24-22-34
 1XU2  GCU-2  91VU 121  811  24-22-34
 22XU1  EGIU-1  95VU 123  811  24-22-33
 22XU2  EGIU-2  96VU 123  811  24-22-33
 4000XU  IDG  430  24-21-51 

R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 24-00-00Page 15 1201-299, 301-399, 1Aug 01/05 1 1 1CES 1R **ON A/C 401-499,

R A. Main Component Location R R (Ref. Fig. 002A, 003B)
R -------------------------------------------------------------------------------R FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA R | | | | DOOR | REF. R -------------------------------------------------------------------------------
R 1PE TR-ESS R 3XB STAT INV R 1XE CONTROL UNIT-CSM/G R 8XE CSM/G R 20XG RCPT-EXT PWR R 24XG GAPCU R 8XS GEN-APU R 1XU1 GCU-1 R 1XU2 GCU-2 R 4000XU IDG
　
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