Which of the following is a requirement for galvanic isolators used in electrical systems aboard boats?

Galvanic isolators play a crucial role in protecting a boat's electrical system from galvanic corrosion. One key requirement for these devices is that they must meet fail-safe testing criteria. This ensures that if the galvanic isolator fails, it does so in a way that does not expose the boat or its electrical system to the risks associated with galvanic corrosion. A properly functioning galvanic isolator will prevent direct electrical connections between the boat’s grounding system and the water, which can lead to significant damage over time due to corrosion.

While user-friendliness, built-in alarms, and waterproof construction are certainly beneficial features, they are not essential requirements outlined in standards relating to galvanic isolators. The focus is on ensuring that the isolator maintains its protective function under various conditions and demonstrates reliability through rigorous testing. Meeting these fail-safe criteria provides peace of mind and enhances the safety and longevity of the electrical systems aboard a vessel.