Rooftop Photovoltaic Project in Guangzhou Conghua, Guangdong
Confidential
The Guangzhou Conghua rooftop photovoltaic project required connecting photovoltaic grid-connected cabinets to low-voltage cabinets using bridge-based point-to-point laying. The installation space was relatively narrow with numerous turning points along the routing path. Yanghua's flexible busbar, with its high flexibility, allowed direct turning without the need for additional joints or connectors, making installation and cable laying remarkably efficient. The low-voltage cabinet could be connected directly to the copper busbar. The flexible busbar provided large current-carrying capacity without requiring multiple joints, complied with the IP68 protection standard, and adapted well to both indoor and outdoor installation environments, ensuring reliable operation across the entire system.
Project Background & Challenges
A narrow rooftop photovoltaic installation in Guangzhou's Conghua district required connecting grid-connected cabinets to low-voltage cabinets through a bridge-laying method, with numerous tight turning points that rigid busbar or multi-cable solutions could not efficiently navigate.
- Narrow rooftop installation space left minimal room for conventional rigid busbar routing and joint fabrication
- Multiple turning points along the bridge route required a connection solution with superior bending capability
- Indoor-to-outdoor routing transitions demanded consistent protection against moisture and environmental exposure
- Point-to-point connection between grid-connected cabinets and low-voltage cabinets needed high current capacity without multiple joints
Solution
Yanghua's flexible busbar was deployed using bridge-based point-to-point connections, with its high flexibility enabling direct turning at every corner without additional joints, while IP68-rated protection ensured reliable performance in indoor-outdoor transition zones.
- Flexible busbar enabled direct turning at every corner point without requiring additional connectors or joints
- Bridge-based point-to-point laying simplified the installation layout and accelerated on-site assembly
- IP68-rated protection provided consistent reliability across indoor and outdoor installation environments
- High current-carrying capacity of the flexible busbar matched the copper busbar connection in the low-voltage cabinet without joint multiplication
Project Results
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