USCG Exam PracticeEngine-room safety and hazardous materials
According to 46 CFR §183.530, electrical equipment installed in a space containing fuel tanks for gasoline must be which of the following?
- A. Weatherproof and double-insulated
- ✓ Explosion-proof, ignition-protected, or part of an intrinsically safe systemCorrect
- C. Grounded to the vessel's hull and fused at 15 amperes or less
- D. Rated for Class II, Division 1 locations per NFPA 70
Why B 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. Weatherproof or double-insulated ratings are not listed as acceptable alternatives.
Cited:46 CFR §183.530