Cleaning and maintenance
The low-voltage distribution cabinet needs to be cleaned at regular intervals to ensure the normal operation of electrical components. When cleaning, the power should be cut off first, and the surface of the distribution cabinet should be wiped with a soft brush or clean cloth, especially in areas prone to dust and dirt accumulation such as covers, doors, and sockets. At the same time, it is also necessary to check whether the ventilation holes of the distribution cabinet are blocked. If there are blockages, they should be cleaned in a timely manner to avoid affecting the heat dissipation effect.
Regular inspections are essential to ensure the normal operation of low-voltage distribution cabinets. You can choose to undergo a comprehensive examination every six months or once a year. The inspection includes the following aspects:
Carefully inspect the distribution cabinet for any damage, breakage, or corrosion, and if so, replace or repair it in a timely manner.
Check the wiring terminals and sockets to ensure they are not loose or punctured, and tighten or replace them if necessary.
Check the integrity of the grounding wire to ensure the safe grounding of electrical equipment.
Check the working status of circuit breakers, fuses, and contactors. If any abnormalities are found, they should be replaced in a timely manner.
Check the working status of current transformers and voltage transformers to ensure their accuracy and sensitivity.
Maintain electrical components
Electrical components are the core part of low-voltage distribution cabinets and require frequent maintenance and upkeep. The specific methods for maintaining electrical components include:
Clean the dust and dirt on the surface of electrical components to ensure their normal operation.
Regularly check the working status of electrical components, such as whether the contacts are clean and in good contact. If there are any abnormalities, they should be replaced or repaired in a timely manner.
Regularly check the insulation status of electrical components, and replace them in a timely manner if there is any damage or aging.
Prevent arcing and leakage
Arc and leakage are potential safety hazards that may occur in low-voltage distribution cabinets, and corresponding preventive measures need to be taken. The specific approach is as follows:
Regularly check the insulation status of the distribution cabinet to ensure that there is no leakage. If there are any problems, they should be repaired in a timely manner.
Install and regularly maintain leakage protectors, promptly detect leakage and cut off power to ensure personal safety.
The high-voltage equipment inside the distribution cabinet should be equipped with arc shields to prevent arc generation and ensure work safety.
Regular verification and testing
The accuracy and reliability of low-voltage distribution cabinets require regular verification and testing. You can choose to perform calibration and testing annually or biennially. Including the following items:
Verify and test the accuracy of the electricity meter to ensure the accuracy of electricity metering.
Test the response time and working effect of overvoltage and overcurrent protectors to ensure their normal operation.
Test the leakage current and insulation resistance of the low-voltage distribution cabinet to ensure its safety and reliability.