UL 61215-1-2-2021 pdf download – Terrestrial Photovoltaic (PV) Modules – Design Qualification and Type Approval – Part 1-2: Special Requirements for Testing of Thin-Film Cadmium Telluride (CdTe) Based Photovoltaic (PV) Modules.
3 Terms and definitions
This clause of IEC 61215-1:2021 is applicable without modifications.
4 Test samples
This clause of IEC 61215-1:2021 is applicable without modifications.
5 Marking and documentation
This clause of IEC 61215-1:2021 is applicable without modifications.
6 Testing
This clause of IEC 61215-1:2021 is applicable with the following modifications:
Special care has to be taken for stabilizing the power output of the module using MQT 19 procedure with
specific requirements stated in 11.19 below.
7 Pass criteria
This clause of IEC 61215-1:2021 is applicable with the following modifications:
The maximum allowable value of reproducibility is set to r= 2,0 %.
The maximum allowable value of measurement uncertainty is set to m 1 = 4,0 % for modules containing
single-junction cells, and m 1 = 5,0 % for modules containing multi-junction cells.
8 Major visual defects
This clause of IEC 61215-1:2021 is applicable without modifications.
9 Report
This clause of IEC 61215-1:2021 is applicable without modifications.
10 Modifications
This clause of IEC 61215-1:2021 is applicable without modifications.
11 Test flow and procedures
The test flow from IEC 61215-1:2021 is applicable.
11.1 Visual inspection (MQT 01)
This test of IEC 61215-2:2021 is applicable without modifications.
11.2 Maximum power determination (MQT 02)
This test of IEC 61215-2:2021 is applicable without modifications.
11.3 Insulation test (MQT 03)
This test of IEC 61215-2:2021 is applicable without modifications.
11.4 Measurement of temperature coefficients (MQT 04)
This test of IEC 61215-2:2021 is applicable without modifications.
11.5 Placeholder section, formerly NMOT
This subclause of IEC 61215-2:2021 does not require technology-specific modifications.
11.6 Performance at STC (MQT 06.1)
This test of IEC 61215-2:2021 is applicable without modifications.
11.7 Performance at low irradiance (MQT 07)
This test of IEC 61215-2:2021 is applicable without modifications.
11.8 Outdoor exposure test (MQT 08)
This test of IEC 61215-2:2021 is applicable without modifications.
11.9.5 Procedure
MQT 09.2 of IEC 61215-2:2021 shall be performed for any MLI module design.
If the module is constructed by interconnection of cell-like substructures, MQT 09.1 of IEC 61215-2:2021
may be applicable.
11.9.6 Final measurements
This subclause of IEC 61215-2:2021, test MQT 09, is applicable without modifications.
11.9.7 Requirements
This subclause of IEC 61215-2:2021, test MQT 09, is applicable without modifications.
11.10 UV preconditioning test (MQT 10)
This test of IEC 61215-2:2021 is applicable without modifications.
11.18 Bypass diode testing (MQT 18)
This test of IEC 61215-2:2021 is applicable without modifications.
11.19 Stabilization (MQT 19)
This test of IEC 61215-2:2021 is applicable with the following modifications:
11.19.1 Criterion definition for stabilization
For the definition of stabilization as per MQT 19 of IEC 61215-2:2021 x = 0,02 shall be used.
Any kind of storage shall be done at temperature below 25 °C to avoid thermally activated processes
affecting MQT 06.1 of IEC 61215-2:2021 measurement.
11.19.2 Light induced stabilization procedures
This test of IEC 61215-2:2021 is applicable without modifications.
11.19.3 Other stabilization procedures
This test of IEC 61215-2:2021 is applicable without modifications.