For the high-voltage cabinet, the first step is to install all the equipment at once; All high-voltage tests such as busbars, circuit breakers, isolation switches, CT, PT, lightning arresters, and high and low voltage cables have passed the tests; The interlocking tests of switches, isolating switches, and grounding switches with interlocking functions are qualified; The control and protection circuit has been inspected, the energy storage motor is working normally, and all signal circuits operate normally; CT and PT secondary circuit check for correct wiring; The protection unit has been verified to be qualified and the transmission test action meets the design requirements; The high-voltage cabinet with backup automatic switching function has passed the backup automatic switching test. The safety inspection methods for high and low voltage switchgear are as follows: 1. The dimensions of the cabinet body in width, depth, and height meet the requirements of the drawings, and the deviation of diagonal dimensions is ≤ ± 2mm; The dimensions of other key parts of the cabinet meet the requirements; 2. All types of connectors, installation plates, lifting rings, etc. on the cabinet should be installed correctly and securely connected. 3. The front and rear doors open and close freely, and the door opening angle> 90 °. 4. The paint parts of the cabinet are free from scratches, cracks, bubbles, and other phenomena, and the color is uniform and meets the requirements. 5. Doors, locks, hinges, lock rods, etc. are installed correctly, and gaps are rejected; There is no shaking phenomenon on doors, sealing plates, etc. 6. The cabinet, instrument panel, door panel, etc. are well grounded, and the grounding bolts are free of paint and other dirt. 7. Protective measures should be taken for installation plates, brackets, cable inlet and outlet holes, etc. that are prone to human operation injury or wire damage. 8. The cabinet is clean and free of foreign objects; There should be no oil stains, dirt, dust or other debris on the inner and outer surfaces of the sealing plate and door. The following is a testing plan for high and low voltage power distribution cabinets for everyone's reference: 1. Voltage withstand test, which detects whether the leakage between the wiring column (live or zero line) and the distribution cabinet shell exceeds the standard. It requires a general output of 0-5kv or some special requirements of 0-10kv and 0-20kv, with a current of 100mA. The main check is whether the breakdown current exceeds the standard. Generally, the voltage is required to have a slow rise and fall function, in accordance with GB-7251. 2. Grounding resistance test is used to check whether the grounding wire of the distribution cabinet is well connected to the shell. Generally, a 10A or 25A AC high current is used for testing. Based on the tested resistance value, it is judged whether it is qualified. Generally, national standards require a minimum of 100 ohm and comply with GB-7251. 3. For capacitor cabinets, a 0.5 level digital voltage meter head is required, and the general requirement is a range of 500V. 4. For capacitor cabinets, voltage regulators (three-phase) are required to adjust the voltage. Generally, the range is 500V5, electronic stopwatch 6, vernier, digital caliper 0-150mm or 0-200mm or 0-300mm 7, tape measure 3m or 2m8, steel ruler 9, torque wrench/wrench or torque driver, and the range depends on the customer's situation (between 0-700Nm) 10. Point inspection tooling (operation inspection tooling)