In the vibration test, how many rectilinear axes must the galvanic isolator be subjected to?

The correct answer indicates that the galvanic isolator must be subjected to testing along three rectilinear axes in the vibration test. This is because vibrational impacts can occur in various directions, and to ensure the reliability and functionality of the galvanic isolator, it is essential to evaluate its performance under conditions that simulate real-world scenarios.

Testing in three axes—typically referred to as longitudinal, lateral, and vertical—helps assess how the device responds to forces that may be experienced due to movement, waves, or changing environmental conditions while in use. This thorough examination is crucial for confirming that the isolator can withstand the stresses it might encounter during operation, thereby ensuring long-term durability and safety in application.

It is important to understand that comprehensive testing across these dimensions enables manufacturers to comply with industry standards and ensures that the isolation remains effective in different operating conditions, ultimately promoting better performance in electrical systems onboard marine vessels.