Thermal Cycling Damp Heat and Freeze Test Chamber
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Application
This chamber is widely used in photovoltaic and related renewable energy fields, including but not limited to:
Thermal cycling and damp heat freeze reliability testing of crystalline silicon photovoltaic modules (monocrystalline and polycrystalline)
Environmental durability evaluation of thin-film photovoltaic modules such as CdTe, CIGS, and amorphous silicon
Temperature and humidity resistance verification of photovoltaic encapsulation materials including EVA, backsheets, glass, and encapsulants
Design verification (DV) and type testing (TT) during photovoltaic module development
Factory inspection and consistency quality control of photovoltaic modules
Standardized photovoltaic module testing in third-party inspection and certification laboratories
Environmental reliability research of new energy materials and devices in universities and research institutes
Standards
(1)GB/T 9535 Crystalline Silicon Terrestrial Photovoltaic (PV) Modules – Design Qualification and Type Approval
(2)GB/T 18911 Photovoltaic Modules – Environmental Test Methods
(3)GB/T 2423.1 Environmental Testing for Electric and Electronic Products – Part 2: Test Methods – Test A: Cold
(4)GB/T 2423.2 Environmental Testing for Electric and Electronic Products – Part 2: Test Methods – Test B: Dry Heat
(5)GB/T 2423.3 Environmental Testing for Electric and Electronic Products – Part 2: Test Methods – Test Ca: Damp Heat, Steady State
(6)IEC 61215 Terrestrial Photovoltaic (PV) Modules – Design Qualification and Type Approval
(7)IEC 61730 Photovoltaic (PV) Module Safety Qualification
(8)IEC 60068-2-1 / IEC 60068-2-2 / IEC 60068-2-30 Environmental Testing – Cold, Dry Heat, Damp Heat
(9)UL 1703 Standard for Flat-Plate Photovoltaic Modules and Panels
(10)JIS C 8918 Environmental Test Methods for Photovoltaic Modules (partially applicable)
Parameters
| Item | Technical Specification |
|---|---|
| Temperature range | -40 ℃ to 85 ℃ |
| Temperature fluctuation | ≤ ±1 ℃ |
| Temperature deviation | ≤ ±1 ℃ |
| Temperature uniformity | ≤ ±2 ℃ |
| Heating and cooling rate | Compliant with IEC 61215 requirements |
| Humidity range | 30 %RH to 98 %RH |
| Relative humidity deviation | ±3 %FS; 85 ±2 %RH; 90 ±2 %RH |
| Humidity fluctuation | ±2 %RH |
| Humidity uniformity | ≤ 2 %RH |
| Temperature change rate | ≤ 100 ℃/h |
| Extreme temperature dwell time | ≥ 10 min |
| Test cycle count | 200 cycles or 50 cycles |
| Maximum sample capacity | 12 photovoltaic modules |
| Inner chamber dimensions | Approx. 1.5 × 2.5 × 1.5 m (L × W × H) |
| Outer chamber dimensions | Approx. 2.5 × 3.0 × 2.5 m (L × W × H) |
| Power supply | AC 380 V / 60 Hz |
Features
High-precision temperature and humidity control system meeting stringent photovoltaic testing requirements
Supports both thermal cycling and damp heat freeze test modes, covering all relevant IEC 61215 clauses
Independent closed-loop control of temperature and humidity ensures fast response and stable operation
Large chamber volume enables simultaneous testing of multiple large-size photovoltaic modules
Touchscreen programmable control supports multi-step program editing and cyclic operation
Real-time display of setpoint and actual curves ensures intuitive monitoring and data traceability
Power failure memory and automatic recovery functions maintain test continuity
Environmentally friendly refrigeration system with reliable operation and low maintenance cost
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