BS EN IEC 60068-2-5:2018
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Environmental testing – Tests. Test S. Simulated solar radiation at ground level and guidance for solar radiation testing and weathering
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 30 |
This part of IEC 60068‑2 specifies the methods for testing equipment or components under simulated solar radiation conditions.
This document is applicable to the equipment and components at the surface of the earth.
The purpose of testing is to investigate to what extent the equipment or components are affected by simulated solar radiation in the presence of moisture to reproduce the weathering effects (temperature, humidity and/or wetting) that occur when they are exposed in actual end-use environments to daylight or to daylight filtered through window glass. This document specifies two test methods, test method Sa: thermal effect test, and test method Sb: weathering test.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 6 | CONTENTS |
| 8 | FOREWORD |
| 10 | INTRODUCTION |
| 11 | 1 Scope 2 Normative references 3 Terms and definitions |
| 12 | 4 General remarks 4.1 Overview 4.2 Irradiance of solar radiation 4.3 Spectral irradiance of solar radiation Figures Figure 1 – Global solar spectral irradiance at sea level |
| 13 | 4.4 Radiation source 5 Test method Sa: thermal effect test 5.1 Conditioning 5.1.1 General 5.1.2 Temperature 5.1.3 Humidity 5.1.4 Ozone and other contamination gases Tables Table 1 – Spectral irradiance |
| 14 | 5.1.5 Surface contamination 5.1.6 Mounting of test specimen(s) 5.1.7 Test facility 5.1.8 Test apparatus Table 2 – Minimum and maximum levels of the relative spectral irradiance |
| 15 | 5.2 Initial measurements 5.3 Testing 5.3.1 General 5.3.2 Procedure Sa 1 – 24 h cycle, 8 h irradiation and 16 h darkness, repeated as required 5.3.3 Procedure Sa 2 – 24 h cycle, 20 h irradiation and 4 h darkness, repeated as required 5.3.4 Procedure Sa 3 – Continuous irradiation as required |
| 17 | 5.4 Final measurements 6 Test method Sb: Weathering test with or without wetting 6.1 Test apparatus 6.1.1 Laboratory radiation source Figure 2 – Test procedures Sa 1, Sa 2 and Sa 3 |
| 18 | 6.1.2 Test chamber 6.1.3 Temperature Table 3 – Relative spectral irradiance of xenon-arc lamp(s) with daylight filters Table 4 – Relative spectral irradiance for xenon-arc lamp(s)with window glass filters |
| 19 | 6.1.4 Humidity 6.1.5 Spray cycle 6.1.6 Mounting of test specimen(s) 6.1.7 Ozone and other contaminating gases 6.1.8 Surface contamination 6.2 Initial measurements 6.3 Testing 6.3.1 General |
| 20 | 6.3.2 Test duration 6.3.3 Test procedure 6.3.4 Ancillary environmental conditions 6.4 Final measurements Table 5 – Exposure cycles |
| 21 | 7 Information to be given in the relevant specification 8 Information to be given in the test report |
| 22 | Annex A (informative) Standard solar spectral irradiance |
| 23 | Table A.1 – Comparison of basic atmospheric conditions used for the solar spectrum defined in ASTM G 177 and that defined in CIE 85:1989, Table 4 Table A.2 – Irradiance comparison for the ASTM G 177 solar spectrum and the CIE 85:1989, Table 4, solar spectrum |
| 24 | Annex B (informative) Radiation source B.1 General B.2 Filters B.3 Uniformity of irradiance |
| 25 | Annex C (informative) Typical apparatus for weathering Figure C.1 – Example of test apparatus |
| 26 | Figure C.2 – Example of test apparatus with flat array |
| 27 | Annex D (informative) Instrumentation D.1 General D.2 Measurement of irradiance D.3 Measurement of spectral irradiance D.4 Measurement of temperature D.5 Difference between insulated black panel and uninsulated black panel thermometer |
| 28 | Bibliography |
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