To check the split meter ready board leakage, you need to follow the following steps and pay attention to relevant matters to ensure safety:

Power outage: First, make sure to disconnect the main power supply of the split meter ready board before inspection to prevent electric shock accidents.

Check the split meter ready board: Open the split meter ready board and use an insulated tool to check whether the internal wiring and connectors are scorched, loose or damaged.

Measure the insulation resistance: Use an insulation resistance meter (megohmmeter) to measure the insulation resistance value of each line in the split meter ready board. Under normal circumstances, it should be more than tens of megohms. If it is lower than this value, it means there is a risk of leakage.

Leakage switch test: Check whether the leakage protection switch is working properly and press the test button to see if it can quickly disconnect the power supply.

Step-by-step investigation: If you suspect leakage in a specific line, you can disconnect each branch one by one, and then measure the insulation resistance of each branch to gradually narrow the scope of the investigation.

Precautions:

When carrying out any inspection or repair, make sure the power supply is completely disconnected and use insulated tools.

Do not operate with wet hands or in wet conditions.

If you find any problems or are unsure about the situation, it is recommended to ask a professional electrician to handle it to ensure safety.