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eLibrary > BS EN IEC 62788-2-1:2023 Measurement procedures for materials used in photovoltaic modules - Polymeric materials. Frontsheet and backsheet. Safety requirements >

BS EN IEC 62788-2-1:2023 Measurement procedures for materials used in photovoltaic modules - Polymeric materials. Frontsheet and backsheet. Safety requirements, 2023

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BS EN IEC 62788-2-1:2023 Measurement procedures for materials used in photovoltaic modules - Polymeric materials. Frontsheet and backsheet. Safety requirements, 2023

undefined [Go to Page]
Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
English [Go to Page]
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms [Go to Page]
3.1 General terms and definitions
3.2 Sheet types and orientations
3.3 Electrical insulation
3.4 Temperatures
3.5 Tensile properties
4 Designation and ratings
5 Requirements [Go to Page]
5.1 General [Go to Page]
5.1.1 Overview
5.1.2 Single-layer constructions
Figures [Go to Page]
Figure 1 – Schematic diagrams of typical constructions of front- or backsheets [Go to Page]
5.1.3 Multilayer constructions
5.2 Insulation coordination [Go to Page]
5.2.1 General
5.2.2 Breakdown voltage requirement for complete front- or backsheet
5.2.3 Breakdown voltage requirements for individual layers
5.2.4 Creepage distance requirements
Tables [Go to Page]
Table 1 – Minimum breakdown voltage requirements for basic and double/reinforced insulation before and after accelerated aging [Go to Page]
5.2.5 Distance through insulation requirements
5.3 Thermal endurance
Table 2 – Minimum distance through insulation requirements
5.4 Mechanical requirements
5.5 Model and variant designation
6 Evaluation of test results [Go to Page]
6.1 General
6.2 Visual inspection – FBST 01 [Go to Page]
6.2.1 General
6.2.2 Reporting
6.3 Tensile properties – FBST 02 [Go to Page]
6.3.1 General
6.3.2 Reporting
6.4 Breakdown voltage – FBST 03 [Go to Page]
6.4.1 General
6.4.2 Analysis
6.4.3 Reporting
Figure 2 – Examples of calculations for determinationof DTI ratio and adjusted breakdown voltage
6.5 Distance through insulation – FBST 04 [Go to Page]
6.5.1 General
6.5.2 Analysis
6.5.3 Reporting
6.6 Material group – FBST 05 [Go to Page]
6.6.1 General
Figure 3 – Determining distance through insulation from laminationprotrusion test as a function of temperature rating [Go to Page]
6.6.2 Reporting
6.7 Thermal endurance – FBST 06 [Go to Page]
6.7.1 General
6.7.2 Reporting
6.8 Accelerated ageing tests [Go to Page]
6.8.1 Damp heat – FBST 07
6.8.2 UV weathering – FBST 08
Figure 4 – Schematic of lamination protrusion test result for determiningwhich surfaces will be evaluated for minimum creepage distancein the IEC 61730 module design review [Go to Page]
6.8.3 Reporting
Table 3 – UV exposure conditions
6.9 Overview tables
Table 4 – Evaluations and requirements overview for individual layers
Table 5 – Evaluations and requirements overview for complete front- and/or backsheets
7 Evaluation report [Go to Page]
7.1 Report
8 Documentation and testing for similar materials [Go to Page]
8.1 General
8.2 Alternate constituent layers
8.3 Thickness variants
8.4 Color variants
8.5 Reporting for similar materials with different color or thickness
Annex A (informative)Chemical analytical material identification [Go to Page]
A.1 General
A.2 Examples of fingerprint techniques
Bibliography [Go to Page]

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BS EN IEC 62788-2-1:2023 Measurement procedures for materials used in photovoltaic modules - Polymeric materials. Frontsheet and backsheet. Safety requirements, 2023

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