Wet leakage current test system of photovoltaic module
The Wet Leakage Current Test System is designed for high-precision evaluation of insulation resistance and leakage current in photovoltaic modules under simulated wet conditions. It replicates real-world rain, dew, and irrigation scenarios while providing accurate temperature control and corrosion-resistant construction, ensuring reliable PID and insulation defect testing.
Application
(1) Wet insulation resistance measurement of framed and frameless PV modules
(2) Detection of leakage currents to evaluate PID (Potential Induced Degradation) risk
(3) Qualification testing per IEC 61215 and UL 61730 standards
(4) Laboratory testing of module materials, encapsulants, and junction boxes
(5) R&D of PV module waterproofing and sealing technologies
Standards
(1) IEC 61215 – Terrestrial Photovoltaic (PV) Modules: Design Qualification and Type Approval
(2) UL 61730 – Safety Standard for Photovoltaic Modules
(3) ISO 17025 – General Requirements for the Competence of Testing and Calibration Laboratories
(4) CE Certification – Conformité Européenne
(5) Optional: IEC 60529 – Degrees of Protection Provided by Enclosures (IP Code)
Features
IEC 61215 Compliance: Maintains 22±3°C for consistent wet insulation resistance measurements.
Precise Liquid Resistivity: <3,500 Ω·cm ensures accurate leakage current detection per standard requirements.
Multi-Directional Spray Simulation: 360° adjustable nozzles with 0–10 bar flow for customizable rain/dew exposure.
Corrosion-Resistant Design: 15mm Plexiglass tank and 316L stainless steel fittings resist salt spray and UV exposure.
Safety Features: 30mA GFI and door interlock system for operator protection during wet cycles.
Smart Data Acquisition: 16-bit ADC captures microamp-level leakage currents; AI diagnostics flag insulation defects.
User-Friendly Operation: Dual-zone temperature control, 7” touchscreen HMI, remote monitoring, and self-cleaning protocols.
Modular Testing: Expandable from single-module to 10-module parallel testing.
Parameters
| Parameter | Specification |
|---|---|
| Test Tank Dimensions | 2,100 mm × 1,000 mm × 250 mm (W×D×H) |
| Tank Material | 15 mm Cast Acrylic (Plexiglass) |
| Temperature Range | 15°C to 40°C (operational) |
| Temperature Stability | ±0.5°C (at 22°C setpoint) |
| Liquid Resistivity | <3,500 Ω·cm (deionized water recommended) |
| Spray Pressure | 0–10 bar (adjustable) |
| Flow Rate | 0–15 L/min (per nozzle) |
| Power Supply | 230V AC, 50/60Hz (single-phase) |
| Dimensions (W×D×H) | 2,500 mm × 1,200 mm × 1,500 mm |
| Weight | 350 kg (net) / 450 kg (gross) |
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