Ethylene-Vinyl Acetate Copolymer Test for GB-T 29848 Encapsulant Solar Module

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of GB-T 29848 test. GB-T 29848 is a Chinese national standard that specifies the requirements for "Ethylene-Vinyl Acetate Copolymer (EVA) Film for Encapsulating Solar Module". This standard relates to the photovoltaic (PV) industry and specifically addresses the use of EVA films as encapsulators for solar modules.

EVA films are widely used in the PV industry as a key component in the manufacture of solar modules. They are used to laminate, encapsulate and protect solar cells from external environmental factors while allowing sunlight to pass through and be converted into electricity.

The GB-T 29848 standard covers several aspects regarding EVA films for solar modules:

• Physical and mechanical properties: The standard defines requirements for the tensile strength, elongation at break, hardness, and other physical and mechanical properties of EVA film.
• Optical properties: This section summarizes the requirements for light transmission, haze and yellowness index of EVA film to ensure optimum solar energy absorption.
• Thermal properties: The standard specifies the heat shrinkage and thermal stability of the EVA film to ensure its performance over the intended service life of the solar module.
• Electrical properties: Includes volume resistivity and dielectric strength requirements to ensure the electrical integrity of encapsulated solar cells.
• Weather resistance: This section deals with the resistance of EVA film to outdoor weather conditions such as UV radiation, temperature changes and humidity.
• Adhesion properties: The standard defines the adhesion strength between the EVA film and the encapsulated components of the solar module.
• Test methods: The standard provides procedures and methods for testing various properties and properties of EVA film.

Compliance with the requirements set out in GB-T 29848 ensures that the EVA film used as an encapsulant in solar modules meets the quality and performance standards required for reliable and long-lasting solar panel operation.

EUROLAB assists manufacturers with GB-T 29848 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.