26/35kV 3 Core Fire Resistant Aluminium Conductor Power Cable for Photovoltaic Project
Overview
The 26/35kV 3 Core Fire Resistant Aluminium Conductor Power Cable for Photovoltaic Projects is engineered for medium-voltage power transmission in utility-scale solar farms, renewable energy substations, and photovoltaic distribution systems. Designed for harsh outdoor environments and critical power continuity applications, this cable combines excellent electrical performance, fire resistance, mechanical durability, and long-term operational reliability.
Manufactured in accordance with international IEC standards, the cable is suitable for fixed installation in underground networks, cable ducts, power stations, and renewable energy infrastructure where stable energy transmission and enhanced fire safety are essential.
Product Features
1.Fire Resistant Performance
The cable maintains circuit integrity during fire conditions, helping photovoltaic systems continue operating for a specified period during emergencies. This significantly improves safety in solar power stations and electrical infrastructure.
2. Aluminium Conductor Design
High-conductivity stranded aluminium conductor reduces cable weight and overall installation cost while providing efficient current transmission for medium-voltage applications.
3. Excellent Thermal Stability
XLPE insulation offers superior thermal resistance, allowing continuous operating temperatures up to 90°C and excellent overload capability.
4. Suitable for Harsh Outdoor Environments
Designed for UV exposure, moisture, chemical resistance, and high-temperature solar environments commonly found in photovoltaic projects.
5. Reliable Mechanical Protection
The robust sheath structure provides strong resistance against impact, abrasion, and environmental stress during installation and long-term operation.
6. Low Smoke and Halogen-Free Option Available
Optional LSZH sheath minimizes toxic gas emissions and smoke generation during fire incidents, improving personnel safety and equipment protection.
Cable Construction
| Component |
Description |
| Conductor |
Stranded Aluminium Conductor (Class 2 Compact) |
| Conductor Screen |
Semi-conductive compound |
| Insulation |
XLPE (Cross-linked Polyethylene) |
| Insulation Screen |
Semi-conductive compound |
| Core Identification |
Color coded or numbered |
| Fillers |
Non-hygroscopic fillers |
| Inner Sheath |
PVC / LSZH |
| Fire Resistant Layer |
Mica tape wrapping |
| Armour (Optional) |
Steel Wire Armour (SWA) / Steel Tape Armour (STA) |
| Outer Sheath |
PVC / PE / LSZH |
| Rated Voltage |
26/35kV |
| Core Number |
3 Core |
Technical Specifications
| Parameter |
Value |
| Rated Voltage |
26/35kV |
| Maximum Conductor Temperature |
90°C |
| Short Circuit Temperature |
250°C (max 5 seconds) |
| Installation Temperature |
≥ 0°C |
| Ambient Operating Temperature |
-20°C to +70°C |
| Bending Radius |
15 × Cable Diameter |
| Frequency |
50Hz / 60Hz |
Applicable Standards
This photovoltaic medium-voltage cable can be manufactured according to the following international standards:
- IEC 60502-2
- IEC 60332
- IEC 60331
- IEC 61034
- IEC 60754
- BS 6622
- EN 60228
Customized standards such as ASTM, NFC, DIN, AS/NZS, and customer project specifications are also available.
Applications
The 26/35kV fire resistant aluminium power cable is widely used in:
- Utility-scale photovoltaic power plants
- Solar farm medium-voltage transmission systems
- Renewable energy substations
- Inverter-to-transformer connections
- Underground power distribution networks
- Industrial renewable energy projects
- Energy storage and grid integration systems
Advantages for Photovoltaic Projects
- Reduced Installation Cost:Aluminium conductor significantly lowers material and transportation costs compared with copper cables, especially for long-distance solar farm installations.
- Enhanced System Safety:Fire resistant construction helps maintain power continuity during fire emergencies, supporting critical renewable energy infrastructure.
- Long Service Life:High-quality XLPE insulation and weather-resistant sheath materials ensure excellent aging resistance and long operational lifespan.
- Optimized for Renewable Energy Infrastructure:Designed specifically for the demanding environmental conditions of photovoltaic and renewable energy projects.
Optional Customization
We provide customized cable solutions based on project requirements, including:
- LSZH outer sheath
- Water blocking design
- Anti-termite sheath
- UV resistant sheath
- Armoured or unarmoured structure
- Customized conductor size
- Customized sheath color
- Flame retardant or enhanced fire resistant grades
Quality Assurance
Every cable undergoes strict quality inspection and routine testing before delivery, including:
- Conductor resistance test
- High voltage test
- Partial discharge test
- Insulation thickness inspection
- Flame resistance test
- Fire resistance test
- Mechanical performance testing
Our manufacturing process follows international quality management systems to ensure consistent product reliability and compliance with global project requirements.
Why Choose Our Photovoltaic Power Cables
- Extensive experience in renewable energy cable manufacturing
- Compliance with international IEC standards
- Stable quality for utility-scale solar projects
- OEM and customized production support
- Fast delivery and global export capability
- Professional technical support for EPC contractors and distributors
Frequently Asked Questions
What is the difference between fire resistant and flame retardant cables?
Fire resistant cables maintain circuit integrity during fire conditions, while flame retardant cables mainly prevent flame spread.
Why use aluminium conductor instead of copper?
Aluminium conductors reduce overall cable cost and weight, making them highly suitable for large photovoltaic installations.
Can this cable be used for underground installation?
Yes. The cable is suitable for underground installation, ducts, trays, and outdoor photovoltaic infrastructure.
Is LSZH sheath available?
Yes. Low Smoke Zero Halogen sheath options are available for projects requiring enhanced fire safety and environmental protection.
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