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Description of ASTM-E1362 2010ASTM E1362 - 10Standard Test Method for Calibration of Non-Concentrator Photovoltaic Secondary Reference CellsActive Standard ASTM E1362 | Developed by Subcommittee: E44.09 Book of Standards Volume: 12.02 ASTM E1362Significance and Use The electrical output of photovoltaic devices is dependent on the spectral content of the source illumination and its intensity. To make accurate measurements of the performance of photovoltaic devices under a variety of light sources, it is necessary to account for the error in the short-circuit current that occurs if the relative spectral response of the primary reference cell is not identical to the spectral response of the cell to be calibrated. A similar error occurs if the spectral irradiance distribution of the test light source is not identical to the desired reference spectral irradiance distribution. These errors are accounted for by the spectral mismatch parameter M (Test Method E973 ), a quantitative measure of the error in the short-circuit current measurement. It is the intent of this test method to provide a recognized procedure for calibrating, characterizing, and reporting the calibration data for secondary photovoltaic reference cells. A secondary reference cell is calibrated to the same reference spectral irradiance distribution as the primary reference cell used during the calibration. Primary reference cells can be calibrated by use of Test Method E1125 or Test Method E1039 . Note 1No standards for calibration of reference cells to the extraterrestrial spectral irradiance distribution presently exist. A secondary reference cell should be recalibrated yearly, or every six months if the cell is in continuous use outdoors. Recommended physical characteristics of reference cells are provided in Specification E1040 . Because silicon solar cells made on p-type substrates are susceptible to a loss of I sc upon initial exposure to light, it is required that newly manufactured reference cells be light soaked at an irradiance level greater than 850 W/m 2 for 2 h prior to initial charcterization in Section 7. 1. Scope 1.1 This test method covers calibration and characterization of secondary terrestrial photovoltaic reference cells to a desired reference spectral irradiance distribution. The recommended physical requirements for these reference cells are described in Specification E1040 . Reference cells are principally used in the determination of the electrical performance of a photovoltaic device. 1.2 Secondary reference cells are calibrated indoors using simulated sunlight or outdoors in natural sunlight by reference to a primary reference cell previously calibrated to the same desired reference spectral irradiance distribution. 1.3 Secondary reference cells calibrated according to this test method will have the same radiometric traceability as the of the primary reference cell used for the calibration. Therefore, if the primary reference cell is traceable to the World Radiometric Reference (WRR, see Test Method E816 ), the resulting secondary reference cell will also be traceable to the WRR. 1.4 This test method applies only to the calibration of a photovoltaic cell that demonstrates a linear short-circuit current versus irradiance characteristic over its intended range of use, as defined in Test Method E1143 . 1.5 This test method applies only to the calibration of a photovoltaic cell that has been fabricated using a single photovoltaic junction. 1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
ASTM Standards E490 Standard Solar Constant and Zero Air Mass Solar Spectral Irradiance Tables E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method E772 Terminology of Solar Energy Conversion E816 Test Method for Calibration of Pyrheliometers by Comparison to Reference Pyrheliometers E927 Specification for Solar Simulation for Photovoltaic Testing E948 Test Method for Electrical Performance of Photovoltaic Cells Using Reference Cells Under Simulated Sunlight E973 Test Method for Determination of the Spectral Mismatch Parameter Between a Photovoltaic Device and a Photovoltaic Reference Cell E1021 Test Method for Spectral Responsivity Measurements of Photovoltaic Devices E1039 Test Method for Calibration of Silicon Non-Concentrator Photovoltaic Primary Reference Cells Under Global Irradiation E1040 Specification for Physical Characteristics of Nonconcentrator Terrestrial Photovoltaic Reference Cells E1125 Test Method for Calibration of Primary Non-Concentrator Terrestrial Photovoltaic Reference Cells Using a Tabular Spectrum E1143 Test Method for Determining the Linearity of a Photovoltaic Device Parameter with Respect To a Test Parameter E1328 Terminology Relating to Photovoltaic Solar Energy Conversion G173 Tables for Reference Solar Spectral Irradiances: Direct Normal and Hemispherical on 37 Tilted Surface Keywords calibration; photovoltaic; reference cell; secondary; Calibration--nuclear analysis instrumentation; Current measurement--solar devices; Irradiance/irradiation--solar; Photovoltaic (PV) power systems; Secondary reference cells; Solar collectors; Solar spectral irradiance; Spectral data--solar devices; ICS Code ICS Number Code 31.260 (Optoelectronics. Laser equipment) DOI: 10.1520/E1362-10 ASTM International is a member of CrossRef. ASTM E1362The following editions for this book are also available...This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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