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Your location: Home > Related Articles > UV Aging Test Chamber IEC 61215 Experiment

UV Aging Test Chamber IEC 61215 Experiment

Author:QINSUN Released in:2023-08 Click:20

UV aging test chamber is a test equipment independently developed and produced by our company qisnun Precision Electromechanical Technology Co., Ltd., with high cost performance and comprehensive after-sales service. IEC61215 has released two editions, the first edition is IEC61215:1993 and the second edition is IEC61215:2005. National standard GB/T9535:1998 \"Design Appraisal and Finalization of Crystalline Silicon Photovoltaic Modules for Ground Use\" is an equivalent version of IEC61215:1993.

The second edition has one more Annex A than the first edition. As for the UV test, the main change is that the title of section 10.10 is changed from \"UVtest (UV test)\" to \"UVpreconditioning test (UV preconditioning test)\". In the \"ultraviolet test\" part, the first edition only stated that the purpose of the test was to \"determine the component\'s ability to withstand ultraviolet (UV) radiation\" and \"the testultraviolet is under consideration\", while the second edition Nont only changed the purpose of the test to \"Pre-treatment by ultraviolet (UV) irradiation is performed to determine the UV attenuation of associated materials and adhesive connections prior to cycling thermal/wet freezing test of the module\", and the test device, test procedure and test requirements are described in detail.

Accelerated UV Aging Test:

Sun Simulation

Using fluorescent UV lamps to simulate the threat of sunlight damage to durable materials.These lamps are electrically similar to those used for general lighting, but mainly emit ultraviolet light rather than visible or infrared light.

For different application conditions, different spectra and therefore different lamp types are UVA-340 lamps foprovide the best simulated sunlight in the short-wave ultraviolet range. The spectral power distribution (SPD) of UVA-340 matches sunlight very well from its cutoff point to about 360 nm. UV-B lamps are also widely used in QUV. They cause materials to age faster than UV-A lamps, but their wavelengths shorter than the cutoff point of sunlight can produce impractical results for many materials.

Irradiance control

In order to obtain accurate and reproducible test results, it is necessary to control the irradiance (light intensity). Most QUV models are equipped with a solar eye illuminance controller. This precise light control system offers the user the advantage of selective irradiance control. Using the solar eye feedback loop system, the irradianceis continuously and automatically controlled and precisely maintained. The solar eye automatically compensates for changes in light intensity caused by lamp aging and other factors by adjusting lamp power.

UV Control

Thanks to the inherent spectral stability of fluorescent UV lamps, the luminescence control system is simplified. As the tube ages, the output of all light sources decreases. However, unlike most other types of lamps, the spectrum of fluorescent lamps does not change over time. This improves the repeatability of test results.

Temperature Control

Temperature control is also important because temperature affects the rate at which materials age. The UV test chamber usually uses a black panel thermometer or a black standard thermometer to accurately control thesample surface temperature.

Humidity simulation

A reservoir of water at the bottom of the test chamber is heated to generate steam. At higher temperatures, hot steam maintains 100% relative humidity in the test chamber. The test sample actually forms the side wall of the test chamber, with the other side of the sample exposed to the ambient air in the chamber. The relatively cool air in the chamber makes the surface of the specimen several degrees colder than the hot steam in the test chamber. This temperature difference causes the slow condensation of water in liquid form on the surface of the sample via a condensation cycle.

As an enterprise integrating R&D, manufacturing, sales, training and service, Shanghai Fanbiao Textile Testing Technology Co., Ltd. is committed to providing more test instruments to the market, long-term supply of textile,leather, combustion test instruments, automotive interior materials, environmental weather aging, masks and protective clothing, etc., can also accept non-standard customization. Before purchase, we can carry out targeted tests according to customer requirements to ensure that the instruments purchased are suitable.