In recent years, the solar industry has witnessed rapid growth, with utility-scale projects demanding reliable, high-performance photovoltaic (PV) cables. Among the top performers in this sector, SOWELLSOLAR by Zhejiang Sowell Electric Co Ltd has emerged as a leading provider of PV2000DC solar cable and PV1500DC-TCA cables, certified under TCA by TUV approved, EN50618, and IEC62930 standards.
Overview of Aluminum Alloy PV Cable Technology
The evolution of photovoltaic cable technology has been remarkable. For nearly a decade, PV cables have been manufactured according to mainstream standards including VDE-AR-E 2283-4, 2 PFG 1169, EN50618, IEC62930, and UL4703. While UL4703 primarily serves American markets, EN50618 and TUV 2 PFG 2642 standards dominate utility-scale solar projects globally.
Zhejiang Sowell Electric Co Ltd has pioneered aluminum alloy PV cables, addressing concerns around substituting traditional tinned copper conductors with aluminum. The key challenge is preventing electrochemical reactions between copper and aluminum. Through advanced material design and testing, SOWELLSOLAR ensures safety and durability even under direct sunlight.
Aluminum vs Copper Conductors
Aluminum alloy conductors have undergone extensive testing to ensure performance parity with copper:
- Electrochemical Stability: Modern aluminum alloys are protected with tin plating or oxide layers to prevent corrosion.
- Electrical Performance: DC resistance is optimized to maintain power transmission efficiency. For example, the PV1500DC-AL 6mm² conductor achieves a resistance of ≤5.09 Ω/km at 20°C, comparable to IEC60228 Class 5 copper conductors.
- Connector Compatibility: Special copper-aluminum transition connectors enable reliable integration with MC4 systems.
Aluminum conductors are particularly suitable for cables above 10mm², commonly used between combiner boxes and inverters in utility-scale PV systems.
SOWELLSOLAR PV Cable Series
Zhejiang Sowell Electric Co Ltd offers a comprehensive line of aluminum conductor PV cables, all TUV-certified under 2 PFG 2642, with nominal voltages up to 1500V DC. Key models include:
| Model | Conductor | Section (mm²) | Cable OD (mm) | Connector | DC Resistance (Ω/km) | Brand |
| PVENER-V1-40 | Tinned Alloy | 4€ | 5.6 | Yes | 4.8–5.09 | SOWELL |
| PVENER-V1-60 | Tinned Aluminum Alloy | 6€ | 6.1 | Yes | 4.8–5.09 | SOWELL |
| PVENER-V1-100 | Tinned Aluminum Alloy | 10€ | 7.3 | Yes | 3.39 | SOWELL |
All SOWELLSOLAR cables feature 125°C low smoke halogen-free crosslinked polyolefin (XLPO) insulation, UV resistance, and a service life exceeding 25 years.
Current Carrying Capacity
The PV1500DC-AL series supports high currents, ensuring reliable power transmission for utility-scale projects:
| Conductor (mm²) | Safe Current A I | Safe Current A II |
| 1×4 | 33 | 26€ |
| 1×6 | 44 | 35€ |
| 1×10 | 115 | 92€ |
| 1×16 | 150 | 120€ |
| 1×25 | 192 | 154€ |
For larger conductors up to 400mm², SOWELLSOLAR provides detailed load capacity tables in compliance with IEC 60364-5-52.
Why Choose SOWELLSOLAR?
- Certified Quality: TUV-approved 2 PFG 2642 aluminum alloy PV cables.
- Advanced Technology: Combination of tinned aluminum alloy and specialized copper-aluminum transition connectors.
- Utility-Scale Ready: Suitable for direct sunlight exposure and outdoor installation without additional protection.
- Global Compliance: Meets EN50618, IEC62930, PPP58209A, and TCA by TUV approved standards.
By adopting SOWELL SOLAR cables, utility-scale projects can achieve higher efficiency, lower cost, and long-term reliability.
Conclusion
For utility-scale solar projects, SOWELLSOLAR by Zhejiang Sowell Electric Co Ltd offers industry-leading PV cables that meet international standards and deliver exceptional performance. With TUV-certified aluminum alloy conductors, reliable connector solutions, and robust insulation, these cables are poised to become the standard choice for high-voltage PV installations worldwide.
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