E-mail:
info@zhongdongcable.com
Tel.: +86 198 2988 5532
Project Background
To address the growing demand for electricity, Bangladesh has been actively promoting the development of renewable energy projects. The 55MWp rooftop solar project is installed across the rooftops of large industrial facilities in multiple industrial parks and is considered one of the largest distributed rooftop photovoltaic power stations in South Asia.
The project required the integration of multiple distributed inverter boosting units and their connection to the local 20kV/35kV power grid.
Customer Requirements
· The cables were required for 26/35kV outdoor grid-connected power transmission systems.
· The products had to meet tropical environmental requirements, including high temperature resistance, moisture resistance, UV resistance, and protection against rodents and termites.
· The cables were required to provide Class B flame retardant performance and low smoke halogen free (LSZH) safety characteristics.
· To support the phased grid-connection schedule of the project, the cables were delivered in batches with precise regional coordination according to the installation progress.
· IEC 60502-2 certification as well as third-party aging and flame retardant test reports were required.
Zhongdong’s Solution
We supplied the following two main cable products for the medium voltage collector circuits and booster substation outgoing lines of the project:
|
Item No |
Specification |
Application Area |
|
ZC-YJY23-26/35 |
3×240mm² |
Copper conductor cable: used for the main transmission line from the inverter boosting units to the grid connection point. |
|
ZC-YJLY23-26/35 |
3×300mm² |
Aluminium conductor cable: used for high-current sections, providing an optimal balance between cost efficiency and current carrying capacity. |
Product Features
· Combined copper and aluminium conductor design: copper conductors were used for the main transmission lines to ensure low power loss, while aluminium conductors were applied in heavy-load sections to optimize project costs.
· Double steel tape armored structure: provides strong resistance against mechanical impact and is suitable for rooftop and outdoor cable tray installations.
· XLPE insulation: offers excellent heat resistance and aging resistance with a long-term operating temperature of up to 90°C.
· Anti-termite outer sheath: specially optimized for the high termite activity environment in Bangladesh.
· Low smoke halogen free flame retardant design: meets the high fire safety standards required for photovoltaic power projects.
Application:
· Photovoltaic arrays → inverter transformer integrated units → power collector circuits
· High-voltage side of the step-up transformers to the grid-connected switchgear
· Installation from factory rooftops to the grid connection points through cable trays and conduits
“The whole process, from technical communication to production and delivery, was handled very professionally. After the cables arrived on site, all inspection tests passed smoothly. We were especially impressed with the termination workmanship and armoring quality of the aluminium cables.”
Project Procurement Manager, EPC Contractor, Bangladesh">
Project Procurement Manager, EPC Contractor, Bangladesh
CU/XLPE/PVC Single Core Power Cable 0.6/1kVZhongdong Cable combines premium raw materials, large-scale manufacturing capabilities, and strict quality control systems to deliver cable products that fully match your technical requirements and brand identity.
