GB/T 9535.2-2025Terrestrial photovoltaic (PV) modules - Design qualification and type approval - Part 2: Test procedures (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents".

Drafting.

This document is Part 2 of GB/T 9535 "Design Qualification and Type Approval of Ground-Mounted Photovoltaic Modules". GB/T 9535 has been published.

The following section.

---Part 1: Test Requirements;

---Part 2: Experimental Procedures.

This document adopts IEC 61215-2:2021 "Design qualification and type approval of terrestrial photovoltaic modules - Part 2: Test procedures".

The following minimal editorial changes have been made to this document.

---The suspending paragraph between Chapter 4 and 4.1 has been removed;

---Replace the numbering of curves a) and c) in Figure 5 to correct the editorial error in the original standard;

---Change IEC 61730-1:2016 to IEC 61730-1:2023 in the normative reference document; the technical content of the referenced part is no longer present.

In terms of technological differences;

---Change IEC TS62804-1:2015 to IEC TS62804-1:2025 in the normative reference document, and the technical content of the referenced part...

There is no technical difference.

--- Replace "test load" and "design load" in formula 4.16.1 with their corresponding symbols.

Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.

This document was proposed by the Ministry of Industry and Information Technology of the People's Republic of China.

This document is under the jurisdiction of the National Technical Committee on Standardization of Solar Photovoltaic Energy Systems (SAC/TC90).

Introduction

With the global transition to clean energy, photovoltaic power generation, as one of the most promising green energy sources, has attracted much attention. my country's photovoltaic industry capacity...

For many years, China has held the world's largest market share, with new products and technologies constantly emerging. To adapt to the rapid development of the photovoltaic industry, and to standardize...

This document is formulated to address photovoltaic market behavior.

GB/T 9535 "Design Qualification and Type Approval of Ground-Mounted Photovoltaic Modules" is a fundamental standard for the design qualification and type approval of ground-mounted photovoltaic modules.

The standard aims to describe the testing requirements, experimental procedures, and specific requirements for photovoltaic modules manufactured based on different cell technologies.

The proposed GB/T 9535 standard, "Design Qualification and Approval of Ground-Mounted Photovoltaic Modules," consists of six parts.

---Part 1: Test Requirements. Its purpose is to specify the design qualification of ground-mounted photovoltaic modules for long-term operation in open-air climates.

and design requirements.

---Part 11: Special Requirements for Testing Crystalline Silicon Photovoltaic Modules. Its purpose is to specify the requirements for ground-mounted [modules] operating under long-term open-air climates.

The design qualification and type approval requirements for crystalline silicon photovoltaic modules are applied, and the electrical characteristics of the modules are verified within a reasonable cost and timeframe.

The evaluation component was assessed for its ability to withstand prolonged outdoor exposure.

---Part 12: Special Requirements for Testing Cadmium Telluride Thin-Film Photovoltaic Modules. Its purpose is to specify the requirements for long-term operation under open-air climates.

The design qualification and type approval requirements for cadmium telluride thin-film photovoltaic modules, and the verification of the electrical characteristics of the modules, within a reasonable cost and timeframe.

The internal evaluation components are capable of withstanding prolonged outdoor exposure.

---Part 13: Special Requirements for Testing Amorphous Silicon Thin-Film Photovoltaic Modules. Its purpose is to specify the requirements for long-term operation in open-air climates.

Design qualification and type approval requirements for ground-mounted amorphous silicon thin-film photovoltaic modules, verification of the module's electrical characteristics, and at a reasonable cost.

The ability of components to withstand prolonged outdoor exposure was assessed within a specified timeframe.

---Part 14: Special Requirements for Testing Copper Indium Gallium Selenide Thin-Film Photovoltaic Modules. Its purpose is to specify the requirements for long-term operation under open-air climates.

The design qualification and type approval requirements for ground-mounted copper indium gallium selenide (CIGS) thin-film photovoltaic modules are specified, and the electrical characteristics of the modules are verified, and the requirements are met within reasonable limits.

Evaluate the components' ability to withstand prolonged outdoor exposure within the time and cost constraints.

---Part 2: Test Procedures. The purpose is to verify the electrical characteristics of the components and to evaluate the components within a reasonable cost and timeframe.

It has the ability to withstand prolonged outdoor exposure.

Design qualification and finalization of ground-mounted photovoltaic modules Part 2: Test Procedure

1 Scope

This document specifies the design qualification and type approval requirements for ground-mounted photovoltaic modules designed for long-term operation in open-air climates. Module lifespan.

Whether it meets the standards depends on its design, environment, and operating conditions. Test results cannot be used as a basis for predicting component lifespan.

This document applies to all types of flat-panel assemblies for ground use, such as crystalline silicon assemblies or thin-film assemblies.

This document is not applicable to high-ratio concentrators, but it can be used for low-ratio concentrators (concentration ratio 1 to 3). For low-ratio concentrators...

For the optical components, all tests were conducted at the designed concentration conditions for irradiance, current, voltage, and power levels.

When the 98th percentile operating temperature of the photovoltaic module exceeds 70°C, it is recommended to use the higher temperature test conditions specified in IEC TS63126.

Conduct testing. When certifying photovoltaic products with a short expected lifespan, it is recommended to follow the standards for consumer photovoltaic electronics in IEC TS63163.

Testing should be conducted. To ensure consistency in characteristics between mass-produced modules and test modules, it is recommended that photovoltaic manufacturers implement a quality system in accordance with IEC 62941.

Verification.

The purpose of the test sequence in this document is to verify the electrical characteristics of the components and to evaluate their ability to withstand long-term loads within a reasonable cost and timeframe.

Capability for outdoor exposure. Accelerated test conditions were empirically established to reproduce failures observed in the field, and are applicable to all types of components.

Acceleration factors may vary depending on product design and may not necessarily reflect all degradation mechanisms. More information on acceleration testing methodologies, including techniques...

For the definition of the term, see IEC 62506.

Some long-term degradation occurs because the time required for failure to occur is too long, and the cost of applying the necessary stress conditions on large-area components is too high.

The mechanism for testing at the component level is more reasonable. The component testing standards, with a high degree of consensus on pass/fail criteria, have been adopted.

GB/T 9535.1-2025 was incorporated into GB/T 9535 by adding Table 1.In contrast, the test procedures described in this document are...

Performed on the component.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 2423.3-2016 Environmental testing—Part 2: Test methods—Test Cab. Constant damp heat test (IEC 60068-2-78.

2012, IDT)

GB/T 9535.1-2025 Design qualification and type approval of terrestrial photovoltaic modules – Part 1: Test requirements (IEC 61215-1) 2021, IDT) IEC 60068-2-21 Environmental testing – Part 2-21.Test methods – Test U. Strength of leads and integral mounting components (Envi-vices) Note. GB/T 2423.60-2008 Environmental testing for electrical and electronic products – Part 2: Test methods – Test U. Strength of leads and integral mounting components (IEC) 60068-2-21.2006, IDT)