W DOC AIRBUS | AMM A320F

DC MAIN DISTRIBUTION - DESCRIPTION AND OPERATION


** ON A/C NOT FOR ALL
1. General
The main 28 VDC distribution network corresponds to busbars 1PP, 2PP, 3PP, 6PP and associated sub-busbars,
** ON A/C NOT FOR ALL
2. Component Location
FIN FUNCTIONAL
DESIGNATION
PANEL ZONE ACCESS
DOOR
ATA REF
** ON A/C ALL
8PN CNTOR-DC SVCE BUS NORM SPLY 120VU 212 24-61-55
10PN CONTACTOR 120VU 212 24-61-55
** ON A/C NOT FOR ALL
3. Operation/Control and Indicating
Busbars 1PP, 3PP are supplied by TR1.
Busbars 2PP, 6PP are supplied by TR2.
NOTE: In case of loss of one main TR, both main busbars are supplied by the remaining main TR.
Busbar 6PP is supplied in flight and/or on ground. This busbar can be supplied, independently from the main network, by the ground power unit via TR2 in ground service configuration (Ref. 24-43-00, P. Block 1).
In case of loss of supply, a warning is triggered on the ECAM system,
In case of loss of main busbars, the ELEC page is automatically displayed on the ECAM lower display unit:
[Rev.10 from 2021] 2026.03.31 23:25:18 UTC