For how long should the galvanic isolator and its status monitor be subjected to vibration in each orientation?

The correct duration for subjecting a galvanic isolator and its status monitor to vibration testing in each orientation is 4 hours. This duration is significant because it ensures that the device can withstand real-world conditions it may encounter during operation, particularly in marine environments where boats can experience significant vibrations from waves, engines, and other equipment.

Testing for 4 hours provides a thorough evaluation of the device's resilience and functionality under stress, allowing manufacturers to identify any potential weaknesses that may not appear in shorter tests. Additionally, rigorous testing for an extended period helps to confirm the reliability of the device over time, which is critical when considering safety and performance in marine applications.

A shorter testing period, such as 2 hours or 1 hour, may not provide a comprehensive assessment of the galvanic isolator's performance under prolonged vibration, while 6 hours would exceed the standard requirements, making it unnecessary and potentially inefficient for testing purposes.