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Understanding the IEC 61215-1 Terrestrial Photovoltaic (PV) Modules UV Test

The IEC 61215-1 standard is a critical international standard established by the Electrotechnical Commission for evaluating design qualification and type approval of terrestrial photovoltaic (PV) modules. This standard outlines a series of tests to assess the performance and durability of PV modules, with the UV test specifically focusing on how well they withstand ultraviolet (UV) radiation.estrial Photovoltaic (PV) Modules UV Test

The UV test serves as a vital element of the IEC 61215-1 standard, guaranteeing the resilience of PV modules against UV radiation in practical settings. This testing ensures long-term functionality and prevents performance degradation caused by natural UV exposure. The success of the UV test hinges on whether the PV module’s post-exposure performance adheres to the stipulated standards. If the module maintains functionality after the test, it demonstrates its ability to withstand real-world UV exposure without significant performance decline.

Expanding on the significance of this test, It is crucial to emphasize the link between successful UV resilience and wider industry application. PV modules that pass the UV test with a post-exposure performance that aligns with the specified standards instill confidence in manufacturers, installers, and end-users alike. This assurance stems from the knowledge that the modules have been thoroughly tested and proven capable of withstanding the adverse effects of UV radiation without experiencing significant deterioration in performance. Such resilience is of paramount importance in ensuring the longevity and reliability of PV systems in practical settings.

IEC 61215-1 UV Test for Photovoltaic (PV) Modules
Equipment Model PV-UVT-IEC-61215-1
Test Room Size(L×W×H)MM 1100×600×500
Outside Dimension(L×W×H)MM 1300×700×1650
Chamber Materials SUS304# Stainless Steel
Temperature Range RT+20℃ ~70℃
Temperature Uniformity: ±1 ℃
Temperature Fluctuation: ±0.5℃
Temperature Control PID SSR Control
Humidity Range ≥90 %RH
Controller System OYO 1000 Controller, Touch Screen, Lcd Display
Control Mode Balance Temperature Humidity Control (BTHC)
Communication Function Be Able To Control The Machine Via Computer Using Temi Control Software Through Rs-232 Port On The Machine
Test Cycle Setting Illumination, Condensation And Water Spray Test Cycle Is Programmable
Distance from Specimen to Lamp 50mm ±3mm (Adjustable)
Center Distance Between The Lamps Distance: 70 mm
Lamp Power & Length 40W/Piece, 1200mm /Piece
Lamps Amount 8 Pieces of UVA-340 or UVB-313 Imported Lamps
Lifetime of Lamp 1200 ~ 1600 Hours
Irradiance Range 1.0W/m2, adjustable directly on OYO 1000 Touch Screen Controller 
Wavelength of Ultraviolet Light UVA is 315-400nm and UVB 280-315nm
Effective Irradiation Area 900×210mm
Irradiation Black Panel Temperature 50℃ ~70℃
Standard Specimen Size 500×350mm/ 2 Pieces
Water Depth For Water Channel 25mm, Automatically Control
Water Consumption 8 Liters/day, Tap Water Or Distilled Water
Testing Time 0~999 Hours, Adjustable
Power Voltage 1 phase, 220V/50Hz /±10% 5KW
Protection System Overload Short Circuit Protection, Over Temperature Protection, Water Lacking Protection
1. The UV test follows these essential steps: Place the PV module within a UV radiation source.

IEC 61215-1 UV Test Procedure:

2. The radiation source emits UV light within the 280 -385nm wavelength range, with an intensity not exceeding 250W/m2 and a non-uniformity of less than ±15%.
3. Expose the PV module to the UV radiation for 15kw/h.m-2, with at least 5kw/h.m-2 within the 280-320nm wavelength range.
4. Please note that the IEC 61215:2005 test conditions also apply to the relevant test requirements of the IEC 61345 test standard.

The UV test, a crucial element of the IEC 61215-1 test, evaluates the performance of PV modules under UV exposure. As a significant component of sunlight, UV radiation can potentially damage the materials and connections within PV modules. The primary purpose of the UV test is to ensure that PV modules can handle real-life UV exposure without experiencing detrimental performance loss or damage. The UV test is conducted prior to thermal cycling and damp heat tests to validate the ability of PV module materials and connections to endure UV degradation.

This ensures that, under normal operating conditions, UV radiation doesn’t compromise the module’s performance or integrity. In addition to validating the endurance of PV module materials and connections against UV degradation, The UV test serves a critical role in ensuring the long-term performance and integrity of photovoltaic systems. By subjecting the modules to controlled UV radiation, manufacturers can simulate the effects of prolonged exposure to sunlight, which is crucial considering the typical lifespan of PV installations. Through this test, Potential weaknesses or vulnerabilities in the module’s design or materials can be identified and addressed.

Moreover, By demonstrating the module’s ability to withstand UV radiation without compromising performance, Manufacturers can provide assurance to end-users that their investment in solar energy will not be hindered by degradation or failure due to exposure to UV rays. This test also underscores the industry’s commitment to delivering reliable and durable PV modules, instilling confidence in consumers and promoting the adoption of sustainable energy sources.

UVA340 Light Source Test The X-axis represents wavelength in nm. UVA340 Light Source Test
The Y-axis represents irradiance in W/m2/nm.
1 is the curve generated by the sunlight source. 2 is the curve produced by UVA340 lamp.
UVB313 Light Source Test The X-axis represents wavelength in nm. UVB313 Light Source Test
The Y-axis represents irradiance in W/m2/nm.
1 is the curve generated by the sunlight source. 2 is UVB313
related page logoIEC 61215-1-1 Terrestrial Photovoltaic (PV) Modules – Design Qualification and Type Approval – Part 1-1: Special Requirements For Testing Of Crystalline Silicon Photovoltaic (PV) Modules
related page logoIEC 61215-1-2 Terrestrial Photovoltaic (PV) Modules – Design Qualification and Type Approval – Part 1-2: Special Requirements For Testing Of Thin-Film Cadmium Telluride (Cdte) Based Photovoltaic (PV) Modules
related page logoIEC 61215-1 Terrestrial Photovoltaic (PV) Modules – Design Qualification and Type Approval – Part 1: Test Requirements
related page logoIEC 61345 UV Test For Photovoltaic (PV) Modules| PV Module UV Testing|UV Radiation Testing
Information regarding UVA340 lamps under “UV radiation with a wavelength of 280-385nm”:  UV Test with UVA 340 Lamps
When the irradiance is set to 0.68W/m2, It is equivalent to a total irradiance of 35.2W/m2 in the wavelength range of 280 ~385nm. Among them, The total irradiance in the range of 280 ~320nm is 3.1W/m2. Assuming the UVA340 lamp operates for X hours, The component /test specimen is exposed to a total irradiance of 15kWh/m2 in the range of 280 ~385nm, and the lamp operates for Y hours, the component is exposed to a total irradiance of 5kWh/m2 in the range of 280-320nm, The required time can be calculated as: 
X≈426 hours. Y≈1613 hours (Taking This Value).       
Let’s analyze UVB313 lamps under “UV radiation with a wavelength of 280-385nm”.  UV Test with UVB 313 Lamps
When the irradiance is set to 0.68W/m2 at 313nm, It is equivalent to a total irradiance of 31.3W/m2 in the wavelength range of 280 ~385nm. Among them, The total irradiance in the range of 280 ~320nm is 18.8W/m2. Assuming the UVB313 lamp operates for X hours, The component is exposed to a total irradiance of 15kWh/m2 in the range of 280 ~385nm, and the lamp operates for Y hours, The component is exposed to a total irradiance of 5kWh/m2 in the range of 280-320nm, the required time can be calculated as: 
X≈479 hours (taking this value). Y≈266 hours.     
From the above analysis, It can be seen that using UVB313 lamps can shorten the testing time. Of course, You can also first use UVA340 lamps for a period of time, and then use UVB313 lamps for another period of time.  Suggestions and Summary
By increasing the set irradiance value, The testing time can be shortened. For example, When using UVB313 lamps and setting the value to 0.76, X will be shortened to approximately 380 hours.                   
For “non-uniformity less than ±15%”, The UV test chamber needs to be equipped with a “solar eye” during design to accurately measure and control the irradiance. 
IEC 61345 UV Test for Photovoltaic (PV) Modules

The UV test can influence certain PV module performance parameters. Changes in open-circuit voltage, short-circuit current, and power output might occur. However, these variations are typically minimal and shouldn’t impact the module’s operational effectiveness. The UV test, as mandated by the IEC 61215-1 standard, plays a crucial role in assessing the performance of PV modules under UV exposure. By guaranteeing their resilience to sunlight’s UV component, the test contributes to the long-term functionality and reliable performance of PV installations.

With a focus on user-friendly design and efficient functionality, the UV test chambers from Wewon Tech offers a range of features that set it apart from other testing equipment. By prioritizing user experience and incorporating innovative features, our ultraviolet aging tester stands out as an exceptional choice for quality testing within a wide range of industries. Its efficient functionality, combined with the convenience of use, guarantees reliable and accurate results. Experience the difference today as you elevate your testing standards with our cutting-edge equipment.

UV Test Machine for IEC 61215-1 UV Test for Photovoltaic (PV) Modules Testing 1 UV Test Machine for IEC 61215-1 UV Test for Photovoltaic (PV) Modules Testing 2
UV Test Machine for IEC 61215-1 UV Test for Photovoltaic (PV) Modules Testing 3 UV Test Machine for IEC 61215-1 UV Test for Photovoltaic (PV) Modules Testing 4
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