Which switchboard is part of the 60 Hz shore power and bus-tie system?

The selection of Switchboard 2SP as part of the 60 Hz shore power and bus-tie system is accurate because this switchboard is specifically designated to connect to the shore power system and manage electrical distribution accordingly. This ensures that the vessel can efficiently utilize shore power when docked, minimizing fuel consumption and emissions by allowing the ship to run its electrical systems from the land-based power source.

Switchboard 2SP is typically engineered to handle the specific voltage and frequency requirements of shore power, which must align with the 60 Hz standard used in many shore facilities. Additionally, as the shore power connection can significantly impact operational efficiency, having a dedicated switchboard like 2SP helps in controlling and distributing that power where needed on the vessel.

In contrast, the other switchboards mentioned may not have the same role or capability related to the shore power and bus-tie system, thereby making them less relevant to the question. This distinction highlights the specialized function of Switchboard 2SP in ensuring a reliable and optimized connection to shore power during docking operations.