The ship's main switchboard is made up of .

A、Generatorcontrolpanel,parallelpanel,loadpanelandbusbar;
B、Generatorcontrolpanel,emergencydistributionpanel,voltageregulatingpanel,loadpanel;
C、Emergencydistributionpanel,generatorcontrolpanel,chargeanddischargepanel,busbar;
D、Shorepowerbox,lightingdistributionpanel,emergencydistributionpanel,loadpanel