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Single Core Solar Cable

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single core solar cable 2.5 mm² electric wire pv cable black 100 meters roll

update time:2025-02-05 13:18:38

brief description:

Ⅰ. Product OverviewThis 2.5 mm² single-core solar cable is designed for DC power transmission in photovoltaic systems. Encased in a black UV-stabilized sheath, the cable features a high-purity copper conductor and cross-linked polyethylene (XLPE) insulation, suitable for outdoor installations. Sup...

introduction

Ⅰ. Product Overview

This 2.5 mm² single-core solar cable is designed for DC power transmission in photovoltaic systems. Encased in a black UV-stabilized sheath, the cable features a high-purity copper conductor and cross-linked polyethylene (XLPE) insulation, suitable for outdoor installations. Supplied in 100-meter rolls, it balances durability with installation flexibility.

Ⅱ. Technical Specifications

2.1 Electrical Parameters

ParameterValue
Conductor Cross-Section2.5 mm² (solid core)
Conductor Material99.97% oxygen-free copper
Rated Voltage1000V DC (IEC 62930 compliant)
Current Rating (90°C)25A (ambient 40°C)
DC Resistance (20°C)≤7.41Ω/km
Insulation Resistance≥100MΩ @ 500V DC

2.2 Physical & Environmental Parameters

ParameterDetails
Insulation MaterialCross-linked PE (XLPE)
Sheath MaterialUV-stabilized TPE
ColorBlack
Operating Temperature-40°C to +90°C
Minimum Bend Radius4× cable diameter (≈12mm)
Flame RetardancyIEC 60332-1 compliant
UV ResistancePassed 1000-hour xenon arc test
Service Life≥20 years

Ⅲ. Key Features

3.1 Efficient Power Transmission

  • Solid core design minimizes resistance loss, ensuring ≥98% power transfer efficiency in short-distance applications (≤50m).

  • Low DC resistance (7.41Ω/km) reduces voltage drop, ideal for 1-5kW residential PV systems.

3.2 Outdoor Durability

  • UV-stabilized sheath resists cracking and degradation from sunlight, humidity, and temperature fluctuations.

  • Withstands 5000 thermal cycles (-40°C to +90°C) with no sheath damage, suitable for year-round outdoor use.

3.3 Installation Convenience

  • 100-meter roll length balances transportability and installation efficiency.

  • Flexible enough for routing through rooftop trusses or conduits, with a minimum bend radius of 12mm.

3.4 Safety Compliance

  • Halogen-free materials limit toxic gas emission during combustion.

  • Flame retardancy meets IEC 60332-1 standards, self-extinguishing within 30 seconds of flame removal.

Ⅳ. Applications

  1. Residential Rooftop Systems
    • Connecting solar panels to inverters in 1-5kW setups

    • Short-distance wiring between modules (≤30m runs)

  2. Small Commercial Setups
    • Sub-circuits in 10-20kW solar systems for shops or restaurants

    • DC wiring from panels to charge controllers in off-grid setups

  3. Portable Solar Kits
    • Ideal for DIY projects, camping generators, or RV solar installations

    • Lightweight 100m roll for temporary deployment

  4. Low-Voltage Sub-Systems
    • Solar-powered lighting, water pumps, or monitoring devices

    • Wiring for sub-circuits in larger PV systems requiring smaller conductors

Ⅴ. Installation Guidelines

  • Voltage Drop: Maintain runs under 50m to keep voltage drop <3%. Use 4mm² cable for longer distances.

  • Termination: Compatible with MC4 connectors and ring terminals; ensure crimping tools are calibrated for 2.5 mm² conductors.

  • Environmental Protection: Use UV-stabilized conduit in direct sunlight or areas prone to mechanical damage.

  • Polarity: Black sheath denotes negative (-) DC connections; pair with red cables for positive (+) leads.

Ⅵ. Compliance Testing

  • Electrical Tests: Conductor resistance, insulation breakdown voltage (3000V/1min), leakage current.

  • Environmental Tests: UV aging (1000h xenon arc), damp heat (85°C/85% RH for 1000h).

  • Mechanical Tests: Tensile strength (≥15N/mm²), abrasion resistance (500-cycle friction test).

Ⅶ. Packaging & Warranty

  • Packaging: 100m roll wrapped in waterproof plastic, housed in a cardboard reel.

  • Warranty: 5-year manufacturer’s warranty against defects in materials and workmanship.

  • Technical Support: Free cable sizing consultation and installation guides available.


For bulk orders, custom lengths, or certification documents (e.g., TÜV EN 50618 test reports), contact your supplier. This product is ideal for cost-effective, reliable wiring in small to medium solar projects.


 


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