USCG Exam PracticeElectrical safety and general safety
Under 46 CFR §183.530, electrical equipment installed in a space containing a gasoline fuel tank must be which of the following?
- A. Watertight and clearly labeled
- B. Grounded to a common ground point
- ✓ Explosion-proof, ignition-protected, or part of an intrinsically safe systemCorrect
- D. Constructed without combustible materials
Why C is correct
46 CFR §183.530(a) requires that electrical equipment in spaces containing machinery powered by, or fuel tanks for, gasoline or other fuels with a flashpoint of 43.3 °C (110 °F) or lower must be explosion-proof, ignition-protected, or part of an intrinsically safe system. Grounding and labeling are general requirements that do not satisfy the hazardous-area standard.
Cited:46 CFR §183.530