PV1-F Solar Cable Vs DC Cable: Key Differences | JSH Cable
Sep 22, 2026
Leave a message
PV1-F Solar Cable vs. Standard DC Cable: What B2B Buyers Need to Know
Introduction
For EPC contractors and solar project developers, the DC-side cabling is often an overlooked component - yet it directly affects system safety, long-term performance and warranty validity. Many buyers ask whether they can substitute a standard UL-certified DC cable for a dedicated PV1-F solar cable. In this article, we break down the key differences.
What Is PV1-F Cable?
PV1-F is a TUV-certified single-core cable designed specifically for photovoltaic systems. It follows the German TUV 2 Pfg 1162 / DIN EN 50618 standard and is rated for DC voltages up to 1.5 kV. The "PV1-F" designation stands for Photovoltaic, Class 1 (single-core), Flexible.
Key construction features:
- Conductor: Tinned copper wire, Class 5 flexible stranding
- Insulation: Cross-linked polyethylene (XLPE) or irradiation-crosslinked material
- Jacket: UV- and ozone-resistant, typically black or red
- Temperature range: -40°C to +90°C (continuous), up to +120°C short-term
| Parameter | PV1-F Solar Cable | Standard DC / RV Cable | ||
|---|---|---|---|---|
| Standard | TUV 2 Pfg 1162 / EN 50618 | Generic UL or GB standard | ||
| UV resistance | Tested ≥ 20,000 hours outdoors | Usually not rated for outdoor exposure | ||
| Temperature range | -40°C to +90°C | Often -15°C to +70°C | ||
| Halogen-free | Yes (low-smoke halogen-free option) | Not guaranteed | ||
|
Yes, per IEC 60332 | Partial | ||
| Expected lifespan | 25+ years outdoors | 5–10 years under UV exposure |
Why Substitution Is Risky
- Warranty void: Most solar module and inverter warranties require compliance cabling. Using a non-PV-rated cable may void coverage.
- UV degradation: Standard jackets crack and become brittle within 2–3 years under direct sunlight, leading to short circuits and fire hazards.
- Certification requirements: In grid-tied installations in the EU, Australia and parts of the U.S., inspectors may reject non-TUV/EN 50618 cabling during commissioning.
Sizing Tips for Your Project
- String current: Use 4 mm² (12 AWG) for strings up to 8 kWp; 6 mm² (10 AWG) for longer runs or higher-current modules.
- Voltage drop: Keep DC-side voltage drop below 1.5% to minimize energy loss.
- Pair polarity: Use black (negative) and red (positive) PV1-F cables consistently.
About JSH Cable
- Shaanxi Jinshenghong Cable Co., Ltd. manufactures PV1-F and H1Z2Z2-K solar cables with TUV, CE and UL certification. We supply EPC companies and distributors across Europe, Southeast Asia, Africa and Latin America. Custom lengths, branding and packaging are available.
Need a Quote?
Contact our technical sales team for a detailed specification sheet and current pricing based on your project's copper price index.
Our address
Sanqiao Fortune Building, Weiyang District, Xi 'an City, Shaanxi Province
+8613891830706
Send Inquiry