USCG Exam PracticeElectrical safety and general safety
A vessel has a nonmetallic hull. Which of the following is required regarding the grounding of electrical equipment?
- A. Each piece of electrical equipment must have its own independent ground rod driven into the keel.
- ✓ A continuous, non-current-carrying grounding conductor must connect enclosures, frames, engines, and fuel tanks to a common ground point.Correct
- C. Grounding is not required on nonmetallic hulls because there is no hull return path.
- D. Metallic enclosures must be bonded to the engine block only, with no connection to fuel tanks.
Why B is correct
46 CFR §28.350(f) specifically requires that vessels with nonmetallic hulls have a continuous, non-current-carrying grounding conductor connecting enclosures, frames, engines, fuel tanks, and equipment enclosures to a common ground point. The conductor must be non-current-carrying and serve as an equipotential bond.
Cited:46 CFR §28.350