How many vertical impacts at 10g acceleration must the galvanic isolator endure during the shock test?

The correct choice indicates that the galvanic isolator must endure 5,000 vertical impacts at a 10g acceleration during the shock test. This requirement is significant because it reflects the demanding conditions that electrical equipment is often subjected to in marine environments.

Marine applications typically involve equipment that must withstand harsh conditions including vibration and shock from waves and machinery. The test ensures that the galvanic isolator can maintain its functionality and integrity under these conditions, which is crucial for preventing issues like galvanic corrosion and ensuring safety and performance of the electrical systems on board.

The number of impacts at that specified acceleration level has been established as a standard to ensure reliability and durability of the device over time, providing confidence that the equipment can handle the rigors of marine use. Therefore, specifying 5,000 impacts signifies a robust expectation for performance in challenging environments, reflecting industry standards for longevity and resilience.