How to test the meter box and small power distribution unit after production is completed?

After the meter box and small power distribution unit is produced, a series of tests are required to ensure its performance and safety. Here are some common meter box and small power distribution unit testing steps:

Appearance inspection: First, inspect the appearance of the meter box and small power distribution unit to ensure that the shell is intact and the logo is clearly visible.

Insulation test: Use insulation testing equipment to test the insulation performance of the meter box and small power distribution unit to ensure that the insulation of the electrical part is qualified.

Electrical performance test: Connect the meter box and small power distribution unit to the power supply and check whether the current and voltage measurements of the meter box and small power distribution unit are accurate. Test various current and voltage ranges to ensure the meter box and small power distribution unit works properly under different conditions.

Leakage current test: Test the leakage current of the meter box and small power distribution unit to ensure that there is no leakage current problem to prevent the risk of electric shock.

Temperature test: Run the meter box and small power distribution unit for a period of time, and then use an infrared thermometer or temperature probe to check its internal temperature. Make sure the meter box and small power distribution unit does not overheat when in operation.

Mechanical Durability Testing: Test the durability of the mechanical parts of the meter box and small power distribution unit, such as switches, connectors and meter gauges, to ensure they can withstand long-term use.

Protection level test: According to the design and specifications of the meter box and small power distribution unit, the protection level test is carried out to verify its protection performance, such as waterproof and dustproof levels.

Electromagnetic interference test: Test whether the meter box and small power distribution unit can withstand electromagnetic interference to ensure that its measurement performance will not be affected.

Safety inspection: ensure that the safety features of the meter box and small power distribution unit, such as grounding, insulation and cable connections, comply with relevant safety standards and regulations.

Recording and Reporting: Record all test results and data, and generate test reports for future reference and traceability.

These test steps help ensure the quality and performance of the meter box and small power distribution unit to meet customer needs and regulatory requirements. Testing should be performed by trained professionals following relevant quality control standards.