Danble successfully delivered a customized Damp Heat Test Chamber for an Israeli photovoltaic customer to perform long-term reliability testing of solar modules.
The system is mainly used for Damp Heat (DH) testing at 85°C and 85%RH, a widely recognized accelerated aging condition for photovoltaic module reliability evaluation. It helps customers assess module durability, material stability, and long-term performance under continuous high-temperature and high-humidity exposure.
As the equipment was installed outdoors, Danble developed a customized chamber structure with enhanced weather resistance to ensure stable operation under challenging environmental conditions.
Photovoltaic modules are designed for long-term outdoor operation and must withstand continuous exposure to heat, humidity, and environmental stress.
The customer required a testing solution capable of:
· Long-duration 85°C/85%RH damp heat testing
· Stable environmental simulation for PV modules
· Uniform exposure across multiple samples
· Reliable outdoor installation performance
The system was designed to support accelerated aging evaluation and improve photovoltaic product reliability.
Danble designed and delivered a 12.5 m³ Damp Heat Test Chamber equipped with a customized multi-layer sample trolley system for photovoltaic module testing.
The chamber provides a stable and uniform testing environment for long-term damp heat exposure of solar panels.
Parameter | Specification |
Equipment Type | Damp Heat Test Chamber |
Application | Photovoltaic Module Reliability Testing |
Main Testing Condition | 85°C / 85%RH Damp Heat Test |
Test Volume | 12.5 m³ |
Test Load | 260 kg PV Modules + 980 kg Sample Trolley |
Sample Rack | 11-Layer Stainless Steel Structure |
Temperature Range | RT ~ +150°C |
Temperature Fluctuation | ≤±0.5°C |
Temperature Uniformity | ≤2°C |
Heating Rate | 3°C/min |
Cooling Rate | 1°C/min |
Humidity Range | 20%RH ~ 98%RH |
Humidity Accuracy | ±3%RH (>75%RH) |
The chamber adopts a horizontal left-right airflow circulation design to ensure consistent environmental exposure across multiple photovoltaic modules.
This helps maintain reliable test results during long-term damp heat aging.
Since the equipment is installed outdoors, Danble optimized the chamber structure with enhanced protection against:
· Solar radiation exposure
· Outdoor environmental impact
· Corrosion risks
This design improves equipment durability and long-term operational reliability.
The forced exhaust system supports faster cooling after test cycles, improving operational efficiency during repeated reliability evaluations.
The system is mainly used for:
· 85°C/85%RH damp heat testing
· Photovoltaic module accelerated aging testing
· Solar panel reliability evaluation
· Material and sealing performance verification
· Long-term environmental durability assessment
Danble completed the design, manufacturing, delivery, installation support, and commissioning of this damp heat test chamber for an Israeli photovoltaic customer.
The system has been successfully deployed for long-term 85°C/85%RH damp heat testing, supporting solar module quality validation and reliability improvement.
With Danble’s customized PV testing solution, the customer achieved:
· Reliable long-duration damp heat testing capability
· Improved confidence in PV module lifetime performance
· Stable environmental exposure for large-area samples
· Enhanced product reliability evaluation efficiency
Danble provides customized environmental testing solutions for renewable energy and new energy industries, including:
· Damp Heat Test Chambers
· PV Module Test Chambers
· Temperature Humidity Chambers
· Thermal Shock Chambers
· Customized Reliability Testing Systems
With professional engineering capability and global project experience, Danble supports customers in developing more reliable and durable products.
