PV Light Induced Degradation (LID) Testing Chamber
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The Light Decay Test Chamber is designed as an indoor exposure system, primarily used for standard module and cell degradation testing, module hot spot testing, and module pre-treatment. Spectral matching, irradiance uniformity, and irradiance stability meet at least BBB-grade standards.
This system comprises a light source system, temperature control system, module support structure, light source control system, and irradiance monitoring system. Utilizing xenon lamps as the light source, the irradiance across the exposure surface can be steplessly adjusted between 400 and 1200 W/m².
Standards
IEC 61215: Terrestrial photovoltaic (PV) modules—Design qualification and type approval (Specifically the Light-Induced Degradation and Hot-spot tests).
IEC 60904-9: Photovoltaic devices—Part 9: Classification of solar simulator characteristics (Meeting BBB or higher standards).
GB/T 9535: Ground-based silicon solar photovoltaic modules—Design qualification and type approval.
IEC 61646: Thin-film terrestrial photovoltaic (PV) modules—Design qualification and type approval (Stabilization phases).
Features
1. Utilizes a xenon lamp as the light source, providing an irradiation area of 1m x 2m, with over-temperature power-off protection.
2. Records irradiance, chamber temperature, and provides both instantaneous irradiance and cumulative irradiation data.
3. Chamber employs air cooling, with internal temperature controllable within 20°C to 50°C.
Parameters
| Category | Item | Specifications |
|---|---|---|
| 1. Xenon Lamp Parameters | Dimensions | 200*40mm |
| Power | 1800W | |
| Operating Voltage | 180VAC | |
| Lamp Life | 700h (with cumulative timing function for lamp tube) | |
| 2. Chamber Structure | Construction | Welded integral structure |
| Outer Wall Material | Galvanized steel sheet (spray-painted) | |
| Inner Wall Material | SUS304 stainless steel sheet | |
| Insulation Material | Glass fiber or polyurethane foam material | |
| Accessories | Equipped with standard viewport: 1 multi-layer glass window (with work light) | |
| 3. Radiometer | Spectral Range | 300 ~ 3000nm |
| Irradiance Range | 0 ~ 2000W/m² | |
| Annual Stability | 2% | |
| Azimuth Response Error | 5% | |
| Non-linearity | 2% | |
| Temperature Error | 2% (-10°C ~ 40°C) | |
| 4. Temperature | Sensor Type | PT100 |
| Measurement Range | -200 ~ 500°C | |
| Test Accuracy | ±1°C | |
| Resolution | 0.1°C | |
| Probe Diameter | Φ5mm | |
| Installation Method | Fixed with movable screws | |
| Probe Length | 5cm | |
| Resistance Change | 0.3851Ω/°C | |
| Lead Connection Method | Three-wire type | |
| Sleeve Material | Stainless steel 304 |
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