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BS EN 62788-1-4:2016

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Measurement procedures for materials used in photovoltaic modules Encapsulants. Measurement of optical transmittance and calculation of the solar-weighted photon transmittance, yellowness index, and UV cut-off wavelength
Amended by

BS EN 62788-1-4:2016+A1:2020

Available format(s)

Hardcopy , PDF

Withdrawn date

04-12-2020

Language(s)

English

Published date

31-01-2017

Publisher

British Standards Institution

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

Defines a method for measurement of the optical transmittance of encapsulation materials used in photovoltaic (PV) modules.

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
GEL/82
DevelopmentNote
Supersedes 15/30300051 DC. (01/2017)
DocumentType
Standard
Pages
26
PublisherName
British Standards Institution
Status
Withdrawn
Supersedes

Standards Relationship
EN 62788-1-4:2016 Identical

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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