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The TÜV approved PV1-F twin 2 core 4mm² DC solar cable is a top - tier solution for photovoltaic (PV) systems. Combining TÜV certification, PV1-F standard compliance, and a 4mm² twin - core structure, it excels in safety, performance, and durability, fitting diverse solar applications.
I. Certification and Standard Compliance
1.1 TÜV Certification
TÜV, a globally recognized certifier, rigorously tests the cable. Evaluations cover electrical safety, mechanical strength, and environmental durability. For instance, overload resistance testing ensures no fire or malfunction risks in PV systems, reassuring installers and system owners.
1.2 PV1-F Standard
The PV1-F standard, tailored for solar cables, sets requirements on insulation, temperature resistance, and UV resistance. This 4mm² cable adheres to it, designed to endure harsh outdoor conditions like sunlight, moisture, and temperature changes, guaranteeing long - term stability in PV setups.
II. Structure and Materials
2.1 Conductors
Material: Made from ≥99.97% purity oxygen - free copper, often tin - plated. This boosts conductivity, cuts resistance, and minimizes power loss. Tin - plating protects against oxidation, crucial in outdoor, moisture - rich environments.
Stranding: Stranded design offers flexibility for easy installation around rooftops or through conduits, while providing enough strength to resist minor pulls.
2.2 Insulation Layer
Inner Insulation: Usually XLPE, providing reliable electrical insulation. It operates from - 40°C to + 90°C and withstands short - term + 120°C spikes, fitting various climates.
Insulation Thickness: Optimized to balance insulation and size, allowing installation in tight spaces without sacrificing safety.
2.3 Outer Sheath
Material: UV - stabilized, halogen - free TPE shields against UV, moisture, abrasion, and mild chemicals.
Color Coding: Black for negative, red/brown for positive, simplifying installation and avoiding connection errors.
III. Technical Specifications
Parameter | Details |
Cross - Sectional Area per Core | 4 square millimeters |
Total Cross - Sectional Area | 8 square millimeters |
Rated Voltage | 1000V DC or 1500V DC |
Current Rating (90°C) | 32A per core, 64A in total |
DC Resistance (20°C) | ≤4.61Ω/km per core |
Overall Diameter | 7.2 - 7.8mm |
Minimum Bend Radius | 6 - 8× cable diameter (43.2 - 62.4mm) |
Flame Retardancy | Meets IEC 60332 - 1 - 2 |
Certifications | TÜV EN 50618, IEC 62930, UL 4703, RoHS |
IV. Key Performance Features
4.1 Efficient Power Transmission
With a 64A total current - carrying capacity at 90°C, it efficiently transfers power from solar panels. Ideal for 5 - 8kW residential PV systems, its low resistance maximizes energy harvest.
4.2 Long - Term Reliability
High - quality materials and standard compliance give it a 15 - 25 - year lifespan. It resists weather, mechanical stress, and electrical wear, cutting replacement and maintenance costs.
4.3 Ease of Installation
Twin - core design streamlines installation, reducing time and errors. Flexibility and compatibility with MC4 connectors make it installer - friendly.
4.4 Safety Assurance
TÜV approval and flame - retardant compliance prevent electrical leakage and fire spread, ensuring safety in all PV applications.
V. Application Scenarios
5.1 Residential Rooftop Solar Systems
Perfect for 3 - 10kW home PV setups, it connects rooftop panels to inverters. Its easy install, safety, and reliability appeal to homeowners.
5.2 Small - Scale Commercial Solar Projects
Suited for local shops and offices with lower - power solar installations, it helps businesses cut electricity costs.
5.3 Off - Grid and Remote Area Solar Setups
In remote locations, it connects panels to batteries, powering loads. Its durability ensures stable supply in tough conditions.
In short, the TÜV approved PV1-F twin 2 core 4mm² DC solar cable is a reliable choice for various solar projects, driving the growth of sustainable PV systems.