PV wet freezing test chamber wet freezing test process

The IEC 61215 standard outlines specific requirements for the wet freeze test in photovoltaic (PV) modules. This test is essential to evaluate a module's ability to withstand extreme environmental conditions, including high temperatures, humidity, and subzero temperatures. Here’s a detailed breakdown of the process: **Purpose:** The primary objective of the wet freeze test is to assess the durability and reliability of PV modules under harsh climatic conditions. It ensures that the components can function properly after exposure to temperature fluctuations and high humidity levels. **Procedure:** 1. The PV modules are first placed on the test bench at room temperature. 2. A temperature sensor is connected to the module and linked to the monitoring equipment to track temperature changes accurately. 3. The test involves 10 complete cycles, with each cycle exposing the module to temperatures ranging from -40°C (±2°C) to +85°C (±2°C), while maintaining a relative humidity of 85% ±5%. 4. After each temperature cycle, the modules are allowed to recover for 2 to 4 hours before the next cycle begins. **Final Measurements:** After completing the test, several key assessments are conducted: - **Insulation resistance test** to ensure electrical safety. - **Visual inspection** to check for any visible damage or defects. - **IV curve analysis** to measure the performance characteristics of the module. **Requirements:** - No major defects should be observed after the test. - The maximum power output should not decrease by more than 5% compared to the initial measurement. - The insulation resistance must meet the standards set during the initial testing phase. This rigorous procedure helps manufacturers ensure the long-term performance and reliability of their solar panels, especially in regions with extreme weather conditions. By following these guidelines, PV modules can maintain efficiency and safety over their operational lifespan.

Dermal Fillers

Why Choose Reborn PLLA Dermal Filler?

Reborn Poly-L-lactic acid (PLLA) Dermal Filler is a type of injectable cosmetic treatment used to restore lost facial volume, reduce wrinkles, and improve skin texture. Poly-L-lactic acid(PLLA) is a biocompatible, biodegradable, synthetic material that is gradually and naturally absorbed by the body. Reborn PLLA Filler can create a more youthful appearance or be used as a prevention treatment. Here are some of the benefits of Reborn PLLA dermal filler:

1. Long Effect: Unlike hyaluronic acid fillers that last for several months, Reborn PLLA filler can last for up to two years or longer, making them a popular choice for those seeking longer-lasting results.
2. Collagen production: Reborn PLLA filler stimulate the production of collagen, a protein that provides structure and firmness to the skin. Over time, the body absorbs the Reborn PLLA dermal filler, leaving behind a network of new collagen fibers that help to improve skin texture, thickness, and elasticity.
3. Gradual and natural-looking results: Reborn PLLA dermal fillers provide gradual and natural-looking results because they work by slowly stimulating the body's natural collagen production. This allows for a more natural-looking enhancement and avoids the "overfilled" or "overstretched" appearance that some other fillers can cause.
4. Safe and effective:Reborn PLLA dermal filler have been approved by the FDA for use in the United States and have been used safely for many years in Europe and other countries. The treatment is generally well-tolerated, and most people experience little to no downtime or side effects.
5. Versatile: PLLA dermal fillers can be used to treat a variety of facial areas, including the cheeks, temples, nasolabial folds, and marionette lines. They can also be used in combination with other cosmetic treatments to achieve a more comprehensive rejuvenation.

Dermal Fillers,Plla Filler,Dermal Fillers Under Eyes,Plla Dermal Filler

Rimless Industry Co.,Ltd. , https://www.rebornplla.com