Frequency and service life of power supply and distribution equipment. 4. 1.5. 1
. Hidden trouble) 4. 1.5.2 Operation status of power supply and distribution equipment and facilities (). 4. 1.5.3 reasonable time (on days avoiding holidays and special events, the maintenance plan of power supply and distribution equipment and facilities shall include the following contents: 4. 1.6.
Maintain the project, content and organizer. 4. 1.6. 1
Spare parts and spare parts plan. 4. 1.6.2
4. 1.6.3 Specific maintenance time. Estimated cost. 4. 1.6.4
According to 4.2, the maintenance of power supply and distribution equipment and facilities shall be carried out in strict accordance with the Management System for Safe Operation of Power Supply and Distribution System. The main overhaul items of high-voltage switchgear, ring network cabinet and transformer are completed by the outsourcing unit, with external cleaning and partial external 4.3.
The maintenance of accessories shall be the responsibility of technicians with high-voltage electrician certificate, and the maintenance of cadmium-nickel battery pack for high-voltage equipment control power supply shall be carried out according to cadmium.
Maintenance procedures for nickel battery pack. The maintenance of the low-voltage distribution cabinet is the responsibility of the technical personnel of the engineering maintenance service department.
4.5 Transformer outsourcing maintenance.
4.5. 1 According to the contract, all transformers in the park will be maintained by the power supply bureau or qualified units, such as testing and testing. The manager of the engineering maintenance service department or a special person is responsible for tracking and supervising the implementation, and the results are recorded in the Maintenance Record of High and Low Voltage Equipment.
4.5.2 Measure the insulation resistance of transformer coil. If the resistance value is found to be 30%-50% lower than the last measured value, an insulating oil test should be conducted. If the insulating oil is unqualified, it should be completely replaced. If the insulation resistance of the transformer is lower than120Ω after replacing with new qualified insulating oil, the transformer coil should be treated.
4.5.3 External maintenance: 65438+ 10 month. All transformers in the park are cleaned and maintained once a year in April and June.
4.5.3. 1 Clean transformer shell. When the transformer leaks oil, tighten the nut or replace the sealing rubber gasket.
4.5.3.2, tighten the connector of the transformer lead. If the connector is found to be burnt out or overheated, it should be refurbished and reconnected.
When the oil level indicator of 4.5.3.3 transformer is at the lower limit, the insulating oil of the same model should be supplemented to remove the water and dirt in the pillow collector;
4.5.3.4 should check whether the grounding wire of the transformer is in good condition, whether the grounding wire is corroded, and replace the grounding wire when the corrosion is serious.
4.6 Maintenance of High Voltage Switchgear. Every year, according to the outsourcing maintenance contract, all high-voltage switchgear in the park will be regularly maintained by the power supply company or qualified units. The manager of the engineering maintenance service department or a special person shall track this work, supervise its implementation and record it in the Maintenance Record of High and Low Voltage Equipment.
4.7 Maintenance of low-voltage distribution cabinet: every April and 10.