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CENELEC
EN 62788-1-4:2016

EN 62788-1-4:2016

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Measurement procedures for materials used in photovoltaic modules - Part 1-4: Encapsulants - Measurement of optical transmittance and calculation of the solar-weighted photon transmittance, yellowness index, and UV cut-off wavelength

Amended by

EN 62788-1-4:2016/A1:2020

Superseded date

07-12-2020

Published date

16-12-2016

Publisher

European Committee for Standards - Electrical

FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Test specimens
7 Measurement procedure
8 Calculation and expression of results
9 Uncertainty of measurements
10 Test report
Annex A (informative) - Advanced analysis of
        transmittance (absorption coefficients)
Annex B (informative) - Applying the quantum
        efficiency of a specific cell technology
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

IEC 62788-1-4:2016 provides a method for measurement of the optical transmittance of encapsulation materials used in photovoltaic (PV) modules. The standardized measurements in this procedure quantify the expected transmittance of the encapsulation to the PV cell. Subsequent calculation of solar-weighted transmittance allows for comparison between different materials. The results for unweathered material may be used in an encapsulation manufacturer's datasheets, in manufacturer's material or process development, in manufacturing quality control (material acceptance), or applied in the analysis of module performance. This measurement method can also be used to monitor the performance of encapsulation materials after weathering, to help assess their durability.

Committee
CLC/TC 82
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Superseded
SupersededBy

EN 62805-2:2017 Method for measuring photovoltaic (PV) glass - Part 2: Measurement of transmittance and reflectance
I.S. EN 62805-2:2017 METHOD FOR MEASURING PHOTOVOLTAIC (PV) GLASS - PART 2: MEASUREMENT OF TRANSMITTANCE AND REFLECTANCE
BS EN 62805-2:2017 Method for measuring photovoltaic (PV) glass Measurement of transmittance and reflectance

EN 60904-3:2016 Photovoltaic devices - Part 3: Measurement principles for terrestrial photovoltaic (PV) solar devices with reference spectral irradiance data
CLC/TS 61836:2009 Solar photovoltaic energy systems - Terms, definitions and symbols
ISO 17223:2014 Plastics — Determination of yellowness index and change in yellowness index
EN ISO 11664-2:2011 Colorimetry - Part 2: CIE standard illuminants (ISO 11664-2:2007)
IEC TS 61836:2007 Solar photovoltaic energy systems - Terms, definitions and symbols
IEC 60904-3 : 3.0 PHOTOVOLTAIC DEVICES - PART 3: MEASUREMENT PRINCIPLES FOR TERRESTRIAL PHOTOVOLTAIC (PV) SOLAR DEVICES WITH REFERENCE SPECTRAL IRRADIANCE DATA
EN ISO 11664-1:2011 Colorimetry - Part 1: CIE standard colorimetric observers (ISO 11664-1:2007)
ISO 11664-1:2007 Colorimetry Part 1: CIE standard colorimetric observers
EN ISO 13468-2:2006 Plastics - Determination of the total luminous transmittance of transparent materials - Part 2: Double-beam instrument (ISO 13468-2:1999)
ISO 13468-2:1999 Plastics Determination of the total luminous transmittance of transparent materials Part 2: Double-beam instrument
ISO 291:2008 Plastics Standard atmospheres for conditioning and testing
IEC 60904-3:2016 Photovoltaic devices - Part 3: Measurement principles for terrestrial photovoltaic (PV) solar devices with reference spectral irradiance data
EN ISO 291:2008 Plastics - Standard atmospheres for conditioning and testing (ISO 291:2008)
ISO 11664-2:2007 Colorimetry — Part 2: CIE standard illuminants

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