When the emergency warning of "power bank smoking" sounds in the aircraft cabin, what kind of "safety container" will the crew take out first? Can it really contain the flames, lock in the smoke, and block the explosive fragments?
The aviation industry cannot tolerate any ambiguity on this issue. In 2020, the UL5800 standard was introduced, providing a globally recognized "performance benchmark" for such battery fire containment products. It strictly stipulates that products must pass multiple tests of high temperature, flame, smoke, and debris ejection before they can be permitted for use in manned aircraft cabins.
However, a core question arises: how can we ensure that these products truly meet the stringent requirements of UL 5800? The value of a standard requires precise and reliable testing capabilities to be realized.
The core of the standard: repeatable and verifiable testing.
UL5800 is not a theoretical guide, but a highly engineered testing system. It explicitly requires:
l Real power source: Using 18650 cells of specific specifications (3400mAh±100mAh), charged to 100%, simulating the maximum dangerous state of a real battery.
l Precise thermal runaway triggering: Thermal runaway is induced by a programmable heating device at a heating rate of 4-7°C/min, ensuring the consistency of test conditions.
l Multi-dimensional security monitoring:
I. Temperature: Temperature measurement points must be densely distributed on the outer surface of the product to ensure that no part exceeds the safe threshold (e.g., the handheld part ≤ 50°C).
II. Smoke: The total smoke release is measured and calculated in real time using a professional smoke density system to determine whether it meets the requirements of Performance Level 1 (no smoke escape) or Level 2 (≤5m²).
II. Flames and Fragments: High-speed video and burning of the covering were used to ensure that there was no leakage.
All of this relies on high-precision, high-reliability testing equipment.
Testech: A Key Support for Making Standards "Come Alive"
As a high-tech enterprise deeply involved in the field of combustion and fire protection testing, TESTech deeply understands that the significance of standards lies in their implementation, and the foundation of implementation lies in equipment.
We are not merely followers of standards, but builders of the ability to implement standards. For UL5800, Testech offers an integrated testing system that fully complies with the standard requirements:
l Customized fuel load preparation system: ensures that cell specifications, arrangement, and free space fully comply with Class 1-4 requirements.
l High-precision thermal runaway triggering and monitoring system: Enables programmable heating and monitors the temperature curves of the trigger cell and adjacent cells in real time to accurately determine the point of thermal runaway.
l Comprehensive temperature and smoke data acquisition system: multi-channel thermocouple arrangement and professional smoke density meter, directly generating standard temperature curves and smoke release rate (SRR) data.
l Building compliant testing environments: Providing complete laboratory solutions from standard test benches and fume hoods to data acquisition software.
We offer more than just a device; we provide a validated and reproducible testing platform. It helps fireproof bag manufacturers, third-party testing laboratories, and aerospace equipment suppliers confidently demonstrate that their products meet every performance requirement of UL5800.
From testing to certification, we provide full support.
For manufacturers of protective products intending to enter the global high-end market, especially in the aerospace sector, UL5800 certification is a crucial "safety pass".
Tastetech's role is to provide strong technical support to companies during the early stages of certification, including R&D verification and pre-testing. We can help our clients:
l Early detection of design flaws allows for optimization of product structure;
l Accumulate complete test data to significantly improve the first-time pass rate for formal certification;
l A deep understanding of the standards details ensures that testing methods are fully compliant.
We believe that true security stems from solid and reliable processes at every stage. From standard documentation and test data to final product certification, Testech is committed to being a robust and trustworthy technological support link in this chain.
