Ⅰ. Product Definition

Ⅱ. Core Structure & Materials

2.1 Conductor

• Material: Oxygen-free copper (≥99.97%), tinned for corrosion resistance (stranded or solid core).

• Common Sizes: 2.5mm² (14AWG), 4mm² (12AWG), 6mm² (10AWG), 10mm² (8AWG).

2.2 Insulation Layer

• Material: Cross-linked polyethylene (XLPE)

• Cross-linking method: Silane or electron beam (EB) curing.

• Thickness: 0.76mm (14AWG) to 1.14mm (8AWG).

• Key Properties:

• Thermal stability: -40°C to +90°C.

• Electrical strength: ≥20 kV/mm breakdown voltage.

Ⅲ. Technical Specifications

Ⅳ. Advantages & Limitations

4.1 Key Advantages

• Cost-Effective: 15–20% lower cost than double-layer cables.

• Flexibility: Easier routing in tight spaces (bend radius ≥4× diameter).

• Lightweight: Reduces installation labor for small to medium systems.

4.2 Limitations

• Environmental Exposure: Not suitable for direct outdoor use without conduit (vulnerable to UV and abrasion).

• Moisture Sensitivity: Requires sealed terminations in wet locations.

• Mechanical Stress: Less durable than double-layer cables in high-friction areas.

Ⅴ. Applications

5.1 Ideal Use Cases

• Residential Rooftop Systems: 1–10kW setups with conduit protection.

• Indoor Wiring: Between inverters and electrical panels.

• Temporary Installations: Construction sites or portable solar kits.

• Conduit-Mounted Commercial Runs: Shorter distances (≤50m) in protected environments.

5.2 Not Recommended for

• Direct burial or outdoor exposure without shielding.

• High-moisture environments (coastal areas, rainforests).

• Industrial settings with mechanical hazards (e.g., heavy machinery).

Ⅵ. Installation Guidelines

1. Termination:

• Use UL-listed crimp terminals (e.g., ring terminals for solid core).

• Ensure connectors are rated for 1000V DC (e.g., MC4 for solar applications).

2. Conduit Selection:

• PVC conduit for outdoor runs (UV protection).

• Metal conduit for fire-rated or industrial installations.

3. Temperature Derating:

• At 40°C ambient, derate current by 80% (NEC Table 310.15(B)(2)(a)).

4. Grounding:

• Green-insulated ground wires must comply with local codes (e.g., NEC 250.118).

Ⅶ. Certification & Compliance

• UL 4703: Mandatory for PV applications in North America (includes temperature cycling and impact resistance tests).

• NEC 2023 (Article 690): Requires separation from other circuits in conduit.

• RoHS Compliance: Lead-free conductor and halogen-free insulation (optional for global markets).

Ⅷ. Comparison: Single-Layer vs. Double-Layer 1000V PV Wire

Ⅸ. Selection Guide

• Residential 1–5kW Systems: 4mm² single-layer wire in PVC conduit.

• Commercial 10–50kW Systems: 6–10mm² single-layer wire with metal conduit for fire safety.

• Cost-Sensitive Projects: Prioritize solid-core single-layer cables over stranded designs.

• Mild Outdoor Environments: Choose UV-stabilized XLPE single-layer wire with conduit.

Ⅹ. Maintenance & Longevity

• Aging Prevention:

• Inspect annually for sheath cracking (especially near heat sources like inverters).

• Replace wires showing signs of brittleness or discoloration.

• Expected Lifespan:

• 10–15 years in protected environments (indoor/conduit).

• 5–8 years in unprotected outdoor setups (without UV additives).

Ⅺ. 6mm² Single-Core Double-Coated Red Solar Cable

11.1 Product Features

• Conductor: 6mm² stranded oxygen-free copper (99.97% purity), tinned for corrosion resistance.

• Insulation Layers:

• Inner Layer: Cross-linked polyethylene (XLPE), 0.8mm thickness, providing high-voltage insulation (1000V DC).

• Outer Layer: Flame-retardant, UV-stabilized TPE sheath, 0.5mm thickness, colored red for positive polarity identification.

• Key Properties:

• Voltage Rating: 1000V DC (compatible with UL 4703).

• Current Capacity: 45A at 90°C (ideal for 10–15kW PV systems).

• Bend Radius: Minimum 4x cable diameter (24mm).

• Temperature Range: -40°C to +90°C (short-term peak +120°C).

11.2 Applications

• Positive Polarity Wiring: Used for connecting solar panels to combiner boxes or inverters in PV arrays.

• Residential & Commercial Systems: Ideal for medium to large-scale solar installations requiring clear polarity identification.

• Marine & RV Solar: Red color facilitates quick circuit tracing in confined spaces.

11.3 Installation Tips

• Termination: Use MC4-R connectors (red) or crimp terminals rated for 6mm² conductors.

• Color Coding: Pair with black negative cables for standardized PV system wiring.

• UV Protection: Outer TPE layer ensures long-term color retention and UV resistance (tested to 5000+ hours).

11.4 Certification

• UL 4703: Safety standard for PV wires in North America.

• TÜV EN 50618: European certification for PV applications.

• RoHS 2.0: Compliant with lead-free and halogen-free requirements.

11.5 Comparison with Standard Single-Layer Cables