Project Overview
The 330kV Huadian Haiyuan Caowa Transmission Line Project is a key power infrastructure development designed to improve electricity transmission capacity between the Huadian Haiyuan Power Plant and the Caowa Substation. This project aims to enhance the reliability and efficiency of the regional power grid while supporting the local energy demand.
The transmission line spans a total distance of approximately 85 kilometers and involves the construction of 120 transmission towers. The route passes through a mix of geographical terrains, including hilly areas, mountainous regions, and agricultural land. Due to the varied landscape, the project requires complex engineering solutions to ensure optimal tower placement and structural integrity.

The project not only focuses on efficient electricity transmission but also integrates advanced safety measures, environmental preservation strategies, and good design services.

Construction Plan & Execution
1. Site Survey & Route Optimization
A thorough topographic survey and geotechnical investigation were conducted to identify the most efficient and feasible transmission path. Factors such as soil conditions, slope gradient, and environmental impact were carefully analyzed to optimize the alignment of the transmission line. The final route minimizes the environmental footprint, avoids densely populated areas, and reduces costs related to land acquisition and right-of-way.
2. Foundation Design & Tower Erection
Given the diverse terrains, multiple foundation types were adopted to ensure stability and durability:
• Concrete pile foundations were used in soft soil regions to support heavy loads.
• Rock anchor foundations were employed in mountainous areas to resist the tension forces.
• Shallow foundations were used in flatter areas with solid ground conditions.
• In specific sections, special foundation reinforcement techniques such as grouted piles were applied to areas with unstable soil.

The tower design includes steel lattice towers equipped with anti-corrosion coatings to withstand harsh weather conditions. The erection of these towers involved the use of high-lift cranes and helicopter-assisted tower installation for hard-to-reach areas.
3. Conductor Installation & Stringing
Once the foundations were set, the conductor stringing process began. This phase involved advanced tension stringing techniques to ensure the proper sag and alignment of the transmission lines. The conductors were carefully tested for tension and conductivity to ensure safe, uninterrupted power flow.
Advanced automated control systems were used during the installation to monitor and adjust the tension in real time, preventing potential damage to the line and ensuring compliance with safety standards.
4. Environmental Protection & Mitigation Measures
Environmental preservation was a primary consideration throughout the project. Erosion control measures were implemented to prevent soil degradation during construction, especially in mountainous and hilly regions. Additionally, the transmission line was designed to minimize its impact on local wildlife habitats and agricultural land, including rerouting in sensitive ecological areas.
Design & Technical Services
Our company provided comprehensive engineering design services for this project, including:
• Route Planning & Line Design:
We conducted detailed studies using GIS mapping systems to optimize the transmission line route, considering factors such as topography, environmental protection, and electromagnetic interference. Advanced structural simulations were used to ensure the integrity and durability of the towers and transmission lines.
• Electrical Design & Load Calculations:
Detailed electrical load flow analysis was carried out to ensure the transmission system meets regional energy demand. The design included voltage drop calculations, short-circuit analysis, and overload protection systems.
• Customized Tower Engineering:
The design of the transmission towers was tailored to meet the unique environmental and load-bearing conditions along the route. The towers were built with materials and finishes that offer superior corrosion resistance, especially in areas prone to moisture or extreme weather.
• Grid Integration & Electromagnetic Compatibility:
The transmission line was designed to integrate seamlessly into the existing 330kV regional grid. Special attention was given to electromagnetic interference and voltage regulation to prevent disruption to nearby infrastructure and power stations.
• Smart Monitoring Systems:
The project incorporated smart grid technologies such as real-time monitoring sensors to detect potential faults, allowing for proactive maintenance and minimal downtime.
After-Sales Service & Maintenance
We are committed to providing comprehensive after-sales services to ensure the long-term reliability and efficiency of the transmission line. Our after-sales support includes:
1. Scheduled Maintenance & Inspections
Regular maintenance programs are scheduled to assess the condition of towers, foundations, and conductors. This includes:
• Tower structural integrity assessments
• Conductor tension and alignment checks
• Corrosion inspections of steel towers
• Insulator cleaning and testing
2. Emergency Support & Fault Repair
In the event of a fault or damage due to adverse weather or unforeseen circumstances, our emergency response team is available 24/7. We offer quick response services such as:
• Fault detection and diagnosis
• Rapid repair and replacement of damaged components
• Temporary power rerouting to ensure uninterrupted electricity supply
3. Upgrades & System Optimization
As part of our commitment to innovation, we offer periodic system upgrades to improve the transmission line’s capacity and reliability. This includes:
• Voltage regulation systems to improve energy efficiency
• Integration of advanced monitoring and control systems to optimize grid performance
• Conductive and mechanical enhancements to accommodate future power demand increases
4. Training & Technical Support
We provide comprehensive training programs for local utility operators, covering everything from routine maintenance to advanced fault diagnosis. Our technical support team ensures that operators are well-prepared to manage and maintain the transmission line over its operational lifespan.
The 330kV Huadian Haiyuan Caowa Transmission Line Project is a vital infrastructure initiative that strengthens the regional power grid and ensures a stable, reliable electricity supply to the surrounding areas. By leveraging cutting-edge design, advanced construction techniques, and a comprehensive after-sales support system, we are confident that this project will serve the community for many years, meeting growing energy demands while ensuring sustainability and environmental protection.
For further inquiries regarding our transmission solutions, design services, or maintenance packages, please contact us today!