Wet Leakage Current Tester
Application
The system is applicable to multiple testing scenarios for PV modules:
Humidity Resistance Testing: Assess insulation performance under wet conditions.
Environmental Simulation: Simulate rain, fog, dew, and melting snow to verify module safety.
Junction Box and Circuit Waterproofing: Evaluate internal circuit protection against moisture ingress.
PV Module Certification Testing: Compliant with IEC 61215.
Durability Assessment: Evaluate long-term performance under humid environments.
R&D Verification: Test insulation and anti-leakage designs in the development stage.
Power Safety Testing: Ensure module reliability in electrical applications.
Standards
IEC 61215 – Crystalline Silicon Photovoltaic Module Design Qualification and Type Approval
Parameters
| Item | Technical Parameter |
|---|---|
| Test Tank Size | 2100 × 1000 × 250 mm (W×D×H), thickness 15 mm |
| Tank Material | Acrylic (Transparent) |
| Temperature Control | Self-developed constant temperature system, 22 ±3℃ |
| Liquid Resistivity | < 3500 Ω·cm |
| Spray System | 3 × UL laboratory spray nozzles, each with water pressure gauge and flow adjustment valve |
| Insulation Test Instrument Output Voltage | 0–5000 V adjustable |
| Maximum Leakage Current | 5 mA |
| Voltage Ramp Rate | 500 V/s |
| Insulation Resistance Measurement Range | 1 MΩ – 9999 MΩ |
| Leakage Current Measurement Range | 0.001 – 5.000 mA DC |
| Control Precision | High-precision conductivity meter and constant temperature control |
| Sample Capacity | Customizable according to fixture, supports multiple modules simultaneously |
Features
Fully simulates wet environmental conditions including rain, fog, dew, and melting snow.
Constant temperature water tank ensures a stable test environment with precise temperature control.
Multi-nozzle design enables full coverage of junction boxes and modules for comprehensive testing.
Insulation tester supports high voltage and low leakage current measurements.
High-transparency acrylic tank allows observation of testing process.
Conductivity meter monitors water resistivity in real-time, ensuring measurement accuracy.
Robust sample fixtures support multiple modules simultaneously.
Data logging, export, and historical tracking are supported for analysis and record-keeping.
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