As the core component of photovoltaic power generation system, solar cable is designed to connect solar panels, inverters, battery packs and control systems. As a solar cable manufacturer, Tongda's solar cables use double-layer insulation structure and weather-resistant materials to ensure that they can maintain stable operation for 25 years in extreme environments such as -40℃ to 125℃ temperature difference and 7500kJ/m² ultraviolet radiation.

Core products and technical advantages

Model: PV1-F DC cable

Design features

Conductor: 5-grade stranded tinned copper core, conductivity ≥98% IACS, passed 2000 bending tests

Insulation layer: XLPO material (2.5-120mm² specification), withstand voltage 1.8kV DC, passed 5kV power frequency withstand voltage test

Sheath: UV-resistant cross-linked polyolefin, insulation resistance >500MΩ·km after 336 hours of salt spray test

Core value

1. Efficient transmission: Reduce line loss by 15% (compared with conventional cables)

2. Environmental adaptability: Dedicated for desert/coastal/high altitude scenarios (passed DNVGL marine engineering certification)

3. Safety assurance: Flame retardant grade B1, smoke density <15%

4. Intelligent operation and maintenance: Optional optical fiber sensing system to monitor conductor temperature rise in real time (±0.5℃ accuracy)

5. Global certification: TÜV/UL/REACH/RoHS full system compliance

6. Long-term warranty: 15-year quality commitment, support PPAP delivery verification

Core application scenarios of solar cables

● Energy transmission in large photovoltaic power stations

It is responsible for the DC power transmission from the component string to the inverter, and adopts a double-layer XLPO insulation structure (certified by TÜV 2PfG 1169/08)

Key performance:

✓ UV resistance level UV 758 (EN 50618 standard 720h aging test)

✓ Compressive strength 1.8kV DC (30% higher than the IEC 62930 standard requirement)

Project verification: The 1.2GW desert power station in the Middle East uses PV1-F 10mm² cable, and the line loss rate is stable at 0.37%/100m

● Integrated wiring of rooftop photovoltaic systems

Suitable for pipe penetration/direct burial laying on flat/sloped roofs, with a bending radius of ≤4D (EN 50395 mechanical performance test meets the standard)

Safety enhancement:

✓ Fire resistance: passed the BS 6387 CWZ level 950℃/3h fire resistance test

✓ Wind-resistant swing design: conductivity attenuation <0.5% after 2000 times of ±180° bending

● Off-grid/grid-connected system environment adaptation

Specialized for extreme temperature scenarios (-40℃ to +120℃ working range, UL 4703 hot and cold cycle certification)

Special model configuration:

✓ Marine engineering type: DNVGL certified salt spray corrosion resistant structure (＞500MΩ·km/500h salt spray test)

✓ Agricultural protection type: rat and ant-proof cross-linked sheath (IEC 60502-2 biological damage test passed)