Description
70 mm² Solar DC Cable (PV Solar Cable)
The 70mm² Solar DC/PV Cable is an extra-heavy-duty, high-capacity single-core photovoltaic cable built for the most demanding high-current DC applications and very long runs in utility-scale or large commercial solar systems. It uses high-purity stranded tinned copper conductors with double XLPO/XLPE insulation, delivering exceptional conductivity, minimal losses, and robust protection against environmental stresses.
Key Features
- Dual-wall cross-linked insulation for superior mechanical and environmental protection.
- Excellent UV, ozone, moisture, abrasion, chemical, and temperature resistance.
- Halogen-free, flame-retardant, and low-smoke.
- Manageable flexibility for its large size.
- Extremely high current-carrying capacity with very low voltage drop.
- Long service life (25+ years).
- TUV-certified to EN 50618 / IEC 62930 standards.
Typical Technical Specifications
- Cable Size: 70mm²
- Conductor: Stranded tinned copper (Class 5)
- Insulation & Sheath: XLPO / XLPE (cross-linked polyolefin), UV-resistant
- Rated Voltage: DC 1500V / 1800V (or AC 1000V)
- Temperature Range: -40°C to +90°C (max conductor temp up to 120°C)
- Colors: Red and black
- Outer Diameter: Approx. 18–22 mm (varies by brand)
Applications
- Main DC trunk lines in utility-scale solar farms
- High-power connections from central inverters or transformers
- Large battery energy storage systems (BESS)
- Industrial solar projects requiring maximum ampacity
This continues the progression from smaller sizes (6mm²–50mm²) in standard Suntree-style or equivalent PV cables, suited for the largest power transmissions.





Reviews
There are no reviews yet.