China National Petroleum Corporation Changqing Clean Power Project Department Precisely Diagnoses and Enhances Power Grid Health Level

Since the spring inspection of the Changqing Oilfield Power Grid, the Clean Power Development Department has focused on six key areas: lightning protection, strong wind prevention, snow and ice prevention, pole fall prevention, line breakage prevention, and overheating prevention. They have targeted their efforts, implemented precise measures, eliminated equipment defects, addressed safety hazards, and fully enhanced the power supply capacity for oil and gas production.

The department has deepened the “Four Modernizations” management model—standardized task lists, risk control, accountability for quality, and documentation of work. They have refined targeted measures such as “one plan per line, one plan per station,” following standardized operational procedures to strictly control inspection quality, coordinate resource allocation, enforce safety responsibilities, and strengthen risk management. They have improved organizational and technical measures, carried out thorough on-site surveys, handled “two tickets,” developed measures, conducted maintenance tests, and performed reviews and acceptance. They have standardized and improved “3+N” inspection video documentation, ensuring seamless connection across all stages of the spring inspection process to achieve closed-loop management and improve safety standards.

All maintenance units have implemented the “step-by-step pole climbing” detailed inspection method, conducting comprehensive inspections and tests on 110kV lines, 35kV single circuits, heavy-load line shock absorbers, joint lines, OPPC conductors, and more. They also inspected lightning protection devices, tower foundations, line sag changes, and equipment cooling conditions, categorizing and registering various defects found during inspections for management. For significant hidden dangers identified during maintenance, they promptly held technical analysis meetings to analyze weak points, optimize defect elimination measures, develop handling plans, and rectify hazards.

Additionally, they widely organized spring inspection labor competitions—comparing craftsmanship, quality, innovation, and efficiency; strengthening work style and skills—to motivate employees. Each maintenance team strictly follows regulations such as the “Preventive Testing Procedures for Power Equipment” and the “Operation Procedures for Power Distribution Lines.” For urgent and difficult tasks like old equipment upgrades and complex defect repairs, specialized expert teams are assembled to diagnose hidden dangers. Through innovative methods, optimized plans, data calculations, and testing instruments, they meticulously repair and eliminate stubborn equipment issues, ensuring the “healthy operation” of the power grid equipment. (Li Xuegang)

Editor: Li Jing

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