With 27 years of practical experience in power and energy facility R&D and engineering, Fujian Xiongfeng Electric Co., Ltd. provides full-cycle solutions from design to operation and maintenance for global high-voltage transmission networks, covering core areas such as overhead lines, optical cable communications, and tower engineering, helping customers build safe, efficient, and reliable power transmission systems.
Core project scope
Focusing on the construction of high-voltage transmission lines of 220kV and above, we provide integrated solutions:
• Overhead line system: including angle steel tower assembly (covering straight towers, tensile corner towers and other types, with a height of 21m to 60m, tower weight of 10 tons to 53 tons), foundation engineering (digging foundation, cast-in pile foundation, etc., suitable for residual soil, rock and other geology) and ground conductor erection (using JL/LB20A-400/35 and other types of conductors, tension racking process to ensure construction accuracy).
• Fiber optic cable communication integration: Deploy 72-core OPGW composite fiber optic cables to achieve stable communication through pre-stranded tension-resistant strings, hanging strings, and anti-vibration hardware (such as VSD20-25 anti-vibration hammers), and support the installation of the tower splicing box and the fixation of the under-lead clamp to meet the needs of long-distance data transmission.
• Leaping engineering treatment: For complex crossing scenarios such as highways, railways, rivers, and high-voltage lines, special solutions such as aircraft deployment and rope release and live span protection are customized to ensure construction safety and efficiency.
Technical solutions
• Tower and foundation technology: Differentiated foundation design is adopted according to the difference in terrain, such as the excavation foundation (hole diameter 1.5-2.0m, hole depth 5-10m) in the residual land section, and the reinforced wall structure in the rocky section; The tower is assembled using a sectional hoisting process to adapt to different altitudes and meteorological conditions (basic wind speed 39m/s, ice cover thickness 0mm).
• Optical cable and grounding system: OPGW optical cable adopts tension racking technology to ensure uniform laying tension; The grounding system is made of galvanized material (860 and other types), including 450*190 flat steel connecting components, to ensure that the grounding resistance meets the standard through precise debugging.
• Intelligent construction management: BIM modeling and UAV inspection technology are introduced to realize digital control of tower positioning and span distance measurement; special construction plans are formulated for special areas (such as reservoirs and factories) to reduce the impact on the surrounding environment.
Full-cycle service capabilities
• Design consultation: Provide preliminary services such as route planning, meteorological parameter analysis, and structural stress calculation, combined with local geological and climatic conditions optimization plans.
•Equipment supply: Supply core equipment such as high-voltage distribution cabinets (KYN-28 series), low-voltage distribution cabinets (GCK series), transformers (SCB10 series), and optical cable fittings, all of which comply with international standards and support customized configurations.
• Construction operation and maintenance: control the whole process from foundation excavation, tower assembly to line erection, and provide 24-hour fault response and regular operation and maintenance services to ensure the long-term stable operation of the line.
Project value
• Safe and reliable: all engineering links comply with international electrical safety standards, the tower structure is wind-resistant up to 39m/s, and the fiber optic cable system is resistant to ambient temperatures from -40°C to +70°C.
• Efficient and economical: Through modular construction and precise material distribution, the construction cost can be reduced by 15%-20%, and the construction period can be shortened by about 20%.
• Sustainability: Use environmentally friendly materials and energy-saving equipment to reduce line loss, adapt to the demand for new energy grid connection, and help build a green power grid.
With technological innovation as the core, Fujian Xiongfeng Electric Co., Ltd. provides customized transmission line solutions for global customers, enabling the whole process from early design to later operation and maintenance to ensure the safe, efficient and sustainable operation of the power transmission system.
