The International Electrotechnical Commission (IEC) has issued a new standard – the IEC 62938:2020 – to test the resistance of solar photovoltaic modules to large amounts of snow piling up on their surfaces. The IEC defines the test standard as a method for determining how well a framed PV module performs mechanically under the influence of inclined non-uniform snow loads.
It said that this standard was introduced based on how previous market experiences have shown the need for a specific test method for measuring resistance to snow loads as needed. Previously, the IEC 61215-1:2016 was the closest equivalent to this test, and it contained various test methods to induce mechanical stresses to measure how well solar modules could withstand different loadsSource : https://mercomindia.com/iec-issues-new-standard/
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