GENERALThe refueling ELECtrical network is normally supplied by the A/Cnetwork.If the A/C network is not supplied, the BATteries can be used as a powersource.The refueling operation can be made according to 3 differentconfigurations:- Normal configuration,- Ground service configuration,- Battery only configuration.NORMAL CONFIGURATIONIn normal supply configuration, the refueling ELEC network is suppliedeither by the EXTernal PoWeR, the APU GENerator or the mainGENerators.GROUND SERVICE CONFIGURATIONIn ground service supply configuration, the refueling ELEC network issupplied by the EXT PWR A only via the MAINTenance BUS P/BSWwithout energizing the whole A/C network.BATTERY ONLY CONFIGURATIONIn BATs only configuration, the ELEC network is supplied by the mainBATs.