CFV Solar puts new mechanical load test stand into operation

Albuquerque, USA /Freiburg, Germany - The CFV Solar Test Laboratory in Albuquerque, NM, USA, has begun using a mechanical load test stand supplied by the Freiburg company PSE AG.

According to PSE, with this new test stand the capacity of PV modules to resist mechanical stresses can be accurately simulated and measured. The test stand enables the testing of loads not only at room-temperatures but also at temperatures from -40̊C to +80̊C. This means that engineers can evaluate the performance, reliability and durability of PV modules for use in different climatic regions, PSE points out. Martin Plass, General Manager of the CFV Solar Testing Laboratory in Albuquerque: "This new load-test stand enables us to determine whether modules can actually provide what they promise at both low and high temperatures. This is particularly vital in order to test new materials used in PV-modules."

As the company emphasizes, a special feature of the test-stand is the adjustment mechanisms of the cylinders and the 96 vacuum suction cups. The PSE arrangement would allow rapid set-up of the machine for different size modules with equal distances between suction cups for a uniform load distribution. The high upper load limit of 10,000 Pa should make it possible to perform tests well in excess of normal demands and evaluate the modules safety margins. Another advantage would be the ability to dynamically load-test modules with rapid switching-cycles of up to 4Hz, which could simulate stresses from wind-gusts or transportation and handling operations.

Frank Luginsland, head of the PSE AG Technology Department: "With our new test stand the mechanical reliability of PV modules can be evaluated under very realistic conditions. We are also pleased with the short set-up times and the high ease of use we were able to achieve with this new design, both of which help reduce testing costs and times."

Source: IWR Online, 01 Jun 2012