IEC 61701-2020 pdf free download

IEC 61701-2020 pdf free download.Photovoltaic (PV) modules — Salt mist corrosion testing Modules photovoltaiques (PV) — Essai de corrosion au brouillard salin.
Three identical samples of the model of PV module or assembly of interest shall be subjected to any of the testing sequences included in Figure 1 or Figure 2 for non-concentrator PV or concentrator photovoltaic (CPV) respectively. As the figures indicate one of these samples should be used as a control. The control sample should be used as a check every time the test samples are measured to evaluate the effect of the salt mist test.
In the case of CPV different situations for choosing the sample may occur. For non-field- adjustable focus-point CPV systems or modules, 3 modules are required to complete the testing sequence included in Figure 2. For field-adjustable focus-point CPV systems or assemblies, 3 receivers (including secondary optics sections, if applicable) and 3 primary optics sections are required to complete the testing sequence included in Figure 2. A complete description of the different types and components of CPV modules and assemblies can be found in IEC 62108.
If a full-size sample is too large to fit into the environmental chambers required for the salt mist test then a smaller representative sample may be specially designed and manufactured for this test. The representative sample should be carefully designed so that it can reveal similar failure mechanisms as the full-size one, and the fabrication process of the representative sample should be as identical as possible to the process of the full-size ones. The fact that the test has been made on representative samples and not on the full-size samples shall be reported in the test report under item g), Clause 8.
If the PV module is provided with means for earthing then the earthing connection shall be tested as part of the module.
5 Test summary
After stabilization, tests are performed to characterize the PV module and confirm it is operational prior to the salt mist exposure. After the exposure, specimens are cleaned and allowed to recover. Then this sequence is repeated and the bypass diode functional test is performed.IEC 61701-2020 pdf free download.