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BS EN 62805-2:2017

$102.76

Method for measuring photovoltaic (PV) glass – Measurement of transmittance and reflectance

Published By Publication Date Number of Pages
BSI 2017 18
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This part of IEC 62805 specifies methods for measuring the transmittance and reflectance of glass used in photovoltaic (PV) modules and provides instructions on how to calculate the effective hemispherical transmittance and reflectance of this glass.

This document is applicable to PV glasses used in PV modules, including ultra-clear patterned glass, anti-reflective coated (AR) glass, transparent conductive oxide coated (TCO) glass and other kinds of PV glass used in PV modules.

These test methods are designed to provide reproducible data appropriate for comparison of results among laboratories or at different times by the same laboratory and for comparison of data obtained on different PV glasses.

These test methods have been found practical for glass having both specular and diffuse optical properties.

PDF Catalog

PDF Pages PDF Title
2 National foreword
7 English
CONTENTS
8 FOREWORD
10 INTRODUCTION
11 1 Scope
2 Normative references
3 Terms and definitions
12 4 Apparatus
4.1 General
4.2 Performance of test instrument
5 Test specimens and reference standards
5.1 Test specimens
5.2 Reference standard
6 Conditioning
13 7 Procedure
7.1 General
7.2 Measurement of spectral hemispherical transmittance
7.2.1 Instrument calibration
7.2.2 Sample measurement
7.3 Measurement of spectral hemispherical reflectance
7.3.1 Instrument calibration
14 7.3.2 Sample measurement
Figure 1 – Schematic of the integrating sphere for reflectance measurement
15 8 Calculation and expression of results
8.1 Effective hemispherical transmittance of photon irradiance
8.2 Effective hemispherical reflectance of photon irradiance
16 9 Test report
17 Bibliography
BS EN 62805-2:2017
$102.76