GB/T 31034-2024 in English
VALIDInsulating back sheet for crystalline silicon photovoltaic(PV) modules
- Issued on:2024-09-29
- Implemented on:2025-04-01
- File Format:PDF
- Delivery:Via email within 5 business days
$301.00
《GB/T 31034-2024晶体硅太阳电池组件用绝缘背板》由TC51（全国绝缘材料标准化技术委员会）归口，主管部门为中国电器工业协会。
Introduction
1. Background and significance of standard formulation
As the core component of the photovoltaic industry, the performance and safety of crystalline silicon solar cell modules are directly related to the reliability and life of the entire system. The insulating backplane is an important component to protect the solar cell modules from the external environment, and it undertakes key functions such as insulation, weather resistance, and anti-aging.
2. Comparison of standard technical frameworks
| Serial number | Item | Unit | Requirements | ||
|---|---|---|---|---|---|
| Composite type | Coating type | Co-extrusion type | |||
| 1 | Unit area mass and allowable deviation thermal shrinkage rate | 一 | Nominal value±10% | ≤1.5 ≤1.0 | |
| Tensile strength | MPa | ≥70 | ≥15 | ||
3. Analysis of Standard Technology Evolution
Compared with the 2014 version, the new version of the standard mainly adds technical requirements for co-extruded backsheets and optimizes a number of performance indicators:
- New content:Added classification and performance requirements for co-extruded backsheets.
- Updated content:Adjusted technical parameters such as system maximum voltage and ultraviolet aging radiation dose.
- Deleted content:Cancelled the relevant provisions of wear resistance and electrolytic sensor method in test methods.
4. Implementation Suggestions
To ensure that the insulating backplane meets the requirements of GB/T 31034-2024 standard, the following measures are recommended:
- Supplier selection:Give priority to suppliers with rich industry experience and technical capabilities.
- Quality inspection:Test key indicators such as appearance, thickness, and tensile strength in accordance with standard requirements.
- Environmental adaptability verification:Test salt spray resistance, UV aging resistance and other performance in the actual use environment.
- Long-term monitoring:Establish a long-term tracking mechanism to ensure the stability and reliability of the backplane during use.
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