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BS EN IEC 61215-1-2:2021

BS EN IEC 61215-1-2:2021

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Terrestrial photovoltaic (PV) modules. Design qualification and type approval – Special requirements for testing of thin-film Cadmium Telluride (CdTe) based photovoltaic (PV) modules

Published By Publication Date Number of Pages
BSI 2021 18
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This document lays down requirements for the design qualification of terrestrial photovoltaic modules suitable for long-term operation in open-air climates. The useful service life of modules so qualified will depend on their design, their environment and the conditions under which they are operated. Test results are not construed as a quantitative prediction of module lifetime.

In climates where 98th percentile operating temperatures exceed 70 °C, users are recommended to consider testing to higher temperature test conditions as described in IEC TS 63126. Users desiring qualification of PV products with lesser lifetime expectations are recommended to consider testing designed for PV in consumer electronics, as described in IEC 63163 (under development). Users wishing to gain confidence that the characteristics tested in IEC 61215 appear consistently in a manufactured product may wish to utilize IEC 62941 regarding quality systems in PV manufacturing.

This document is intended to apply to all thin-film CdTe based terrestrial flat plate modules. As such, it addresses special requirements for testing of this technology supplementing IEC 61215-1:2021 and IEC 61215-2:2021 requirements for testing.

This document does not apply to modules used with concentrated sunlight although it may be utilized for low concentrator modules (1 to 3 suns). For low concentration modules, all tests are performed using the irradiance, current, voltage and power levels expected at the design concentration.

The object of this test sequence is to determine the electrical characteristics of the module and to show, as far as possible within reasonable constraints of cost and time, that the module is capable of withstanding prolonged exposure outdoors. Accelerated test conditions are empirically based on those necessary to reproduce selected observed field failures and are applied equally across module types. Acceleration factors may vary with product design and thus not all degradation mechanisms may manifest. Further general information on accelerated test methods including definitions of terms may be found in IEC 62506.

Some long-term degradation mechanisms can only reasonably be detected via component testing, due to long times required to produce the failure and necessity of stress conditions that are expensive to produce over large areas. Component tests that have reached a sufficient level of maturity to set pass/fail criteria with high confidence are incorporated into the IEC 61215 series via addition to Table 1 in IEC 61215-1. In contrast, the tests procedures described in this series, in IEC 61215-2, are performed on modules.

This document defines PV technology dependent modifications to the testing procedures and requirements per IEC 61215-1:2021 and IEC 61215-2:2021.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
7 English
CONTENTS
9 FOREWORD
11 1 Scope
2 Normative references
12 3 Terms and definitions
4 Test samples
5 Marking and documentation
6 Testing
7 Pass criteria
8 Major visual defects
9 Report
10 Modifications
11 Test flow and procedures
11.1 Visual inspection (MQT 01)
11.2 Maximum power determination (MQT 02)
13 11.3 Insulation test (MQT 03)
11.4 Measurement of temperature coefficients (MQT 04)
11.5 Placeholder section, formerly NMOT
11.6 Performance at STC (MQT 06.1)
11.7 Performance at low irradiance (MQT 07)
11.8 Outdoor exposure test (MQT 08)
11.9 Hot-spot endurance test (MQT 09)
11.9.1 Purpose
11.9.2 Hot-spot effect
11.9.3 Classification of cell interconnection
11.9.4 Apparatus
11.9.5 Procedure
14 11.9.6 Final measurements
11.9.7 Requirements
11.10 UV preconditioning test (MQT 10)
11.11 Thermal cycling test (MQT 11)
11.12 Humidity-freeze test (MQT 12)
11.13 Damp heat test (MQT 13)
11.14 Robustness of terminations (MQT 14)
11.15 Wet leakage current test (MQT 15)
11.16 Static mechanical load test (MQT 16)
11.17 Hail test (MQT 17)
11.18 Bypass diode testing (MQT 18)
11.19 Stabilization (MQT 19)
11.19.1 Criterion definition for stabilization
15 11.19.2 Light induced stabilization procedures
11.19.3 Other stabilization procedures
11.19.4 Initial stabilization (MQT 19.1)
11.19.5 Final stabilization (MQT 19.2)
16 11.20 Cyclic (dynamic) mechanical load test (MQT 20)
11.21 Potential induced degradation test (MQT 21)
11.22 Bending test (MQT 22)

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BS EN IEC 61215-1-2:2021
$102.76