China / Guangyuan and Bazhong, Sichuan
Zhaohua-Bazhong 500 kV Double-Circuit Line
500 kVSUNENG supplied selected electrical products and components for the Zhaohua-Bazhong 500 kV double-circuit transmission-line project.
Project context.
The Zhaohua-Bazhong 500 kV line connects the two substations through Zhaohua and Wangcang in Guangyuan and Nanjiang and Bazhou in Bazhong. Both circuits share a 144.41 km overhead route through hilly and mountainous terrain.
The line uses 294 towers: 187 suspension towers and 107 tension towers. Associated work includes two additional 500 kV outgoing bays at Bazhong. Construction began in April 2020, followed by energized trial operation in June 2021.
Electrical scope
- Route configuration
- Double-circuit overhead line; 144.41 km is the route length, not the sum of both circuits.
- Suspension towers
- 187 towers.
- Tension towers
- 107 towers.
- Bazhong substation
- Two additional 500 kV outgoing-line bays.
- Terrain and structures
- Mountain and hillside spans with foundations adapted to sloping ground.
- Construction timeline
- April 2020 construction start; June 2021 energized trial operation.
Electrical drawings
Review the electrical sheets and their equipment and route annotations.
Field imagery
Station equipment and line routes.
Double-circuit line corridor
Tower steelwork and foundations
Electrical construction works
Discuss a similar requirement.
Send a drawing, BOM, voltage level or technical specification for an initial review.