What is the duration for testing the galvanic isolator at 100% of rated voltage and current?

Testing a galvanic isolator at 100% of its rated voltage and current is crucial for ensuring the device can handle the electrical loads it will encounter in operational conditions. The standard duration for this test is five minutes. This time frame allows for the identification of any potential issues such as overheating, insulation breakdown, or failure to properly isolate galvanic currents.

A shorter duration might not provide enough data to expose flaws that could occur with continuous operation, whereas longer durations could unnecessarily stress the device or simulate conditions that are not representative of normal use. Therefore, the five-minute test duration is a balanced approach that ensures reliable assessment of the galvanic isolator's performance under rated conditions. This testing protocol aligns with best practices outlined in relevant electrical standards.