DC Ground vs DC Negative?

Question:

When wiring a DC Panel I understand that the negative bus wire goes to the negative bus bar connected to the house bank.  Where does the DC ground wire go to? - Graham

Answer:

On most boats, the DC negative and the DC ground are the same thing. Recall the DC negative is connected to the engine (for starting and running gauges and alarms), the engine is in turn connected to ground via the transmission, propeller shaft, and therefore connected to water, which is ground.

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