As an important component of the power system, the regular inspection of the meter box is crucial for ensuring the safety and stable operation of electricity. The following are the main items for checking the electric meter box:

Appearance inspection: Firstly, check whether the external structure of the meter box is intact, and whether there is any obvious deformation, damage, rust, or contamination. At the same time, confirm whether the door lock of the meter box is intact and can be opened and closed normally to ensure the safety and protection performance of the meter box.

Structural inspection: Check whether the internal structure of the meter box is firm, whether the connections between various components are tight, and whether there are any loose or detached parts. Especially for cable connection terminals, it is necessary to confirm whether they are securely fastened and whether there is any corrosion.

Electrical performance inspection: Use professional testing instruments such as insulation resistance testers, grounding resistance testers, etc. to inspect the electrical performance of the meter box. This includes measuring the insulation resistance, grounding resistance, etc. of the meter box to ensure compliance with relevant standards and specifications.

Measurement performance inspection: Check whether the electricity meter in the meter box is accurately measuring and whether there is any excessive error. This requires the use of instruments such as energy meter calibrators for measuring performance calibration.

Safety protection inspection: Check the protective performance of the electric meter box, such as waterproofing, dustproof, anti-corrosion, etc., to ensure compliance with relevant standards and specifications. At the same time, confirm whether the meter box is labeled with clear warning signs such as "high voltage", "danger", etc.

During the inspection process, it is necessary to strictly follow the requirements of relevant standards and specifications to ensure the accuracy and reliability of the inspection results. If any problems are found, timely measures should be taken to repair or replace them to ensure the normal operation and electrical safety of the power system.