Any boat dock owner should have GFCIs (Ground Fault Circuit Interrupter) installed as a safety measure. You and anybody else you take out on your boat are at risk of strange electrical mishaps that might result in harm or even death if each electrical outlet does not have a GFCI installed. Once you’ve installed GFCIs, make sure they work and stay that way with monthly testing.
Another safety measure is to install bonding jumpers. This gadget links all of your dock’s metal pieces to a ground rod on the shore. This will divert any electrical charge on your dock to the grounding rod and away from people. With these two devices together, you will ensure the safety of everyone on the dock.