How do Submarines, Planes, Ships, Spaceships, etc. Ground their electrical systems to prevent their entire surface from becoming an electrical hazard?
In: Engineering
Mostly similarly to how cars do it. Those rubber tires may be touching the ground but rubber is a fantastic insulator, meanwhile it is common for the body of the car itself (or at least the frame) to act as the ground for the electronics onboard. To that end, the negative side of the battery is pretty safe as it’s the place that wants to accept electricity rather than dish it out like the positive side, and any hot-side wiring hitting the ground *should* trip overload protection such as a fuse to keep from making the body itself an electrical hazard.
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