UL 1973
UL 1973 is a test standard for stationary energy storage batteries developed by Underwriters Laboratories (UL). The main purpose of the standard is to ensure the safety of stationary energy storage batteries during design, manufacturing and use to prevent fire, electric shock and other potential risks. The UL 1973 standard provides a benchmark for manufacturers, suppliers and regulators to evaluate and certify energy storage batteries to ensure their safety and reliability in real-world use.
National Fire Protection Association (NFPA)Standard is a standard developed by the National Fire Protection Association. NFPA 70Article 706 Energy Storage Systems, also requires battery system thermal runaway protection and safety to comply with UL1973.
NFPA70 is equivalent to the National Electrical Code (NEC), which has been adopted by all 50 states and is the benchmark for safe electrical design, installation, and inspection. To protect persons and property from electrical hazards.
NFPA855 Standard for the Installation of Sta-tionary Energy Storage chapter9 Elec-trochemical Energy Storage Systems, which requires battery Systems, modules, capacitor systems, modules and thermal runaway protection to comply with UL1973.
UL 1973 Energy Storage Battery Test Standard
UL 1973 covers all kinds of battery systems used for stationary, photovoltaic, wind power, backup power, communication base stations, vehicle auxiliary power, LER, etc., and includes structural evaluation and test evaluation of energy storage systems. However, this standard is only a safety standard and does not include performance and reliability assessment. The UL 1973 standard covers multiple aspects of stationary energy storage batteries and aims to assess their safety under different conditions. The standard requires a series of tests and evaluations of the battery to verify its performance under normal operation, abnormal conditions and accident conditions.
Electrical Performance Test
This test is designed to verify the electrical performance of the energy storage battery, including voltage, current, capacity and other parameters. This helps determine if the battery meets the design specifications and is able to operate properly under the expected operating conditions.
Thermal Performance Test
The thermal management performance of an energy storage battery can be evaluated by simulating its use under different temperature conditions. This helps prevent the battery from overheating and cooling, which reduces the chances of fire and other safety risks.
Safety Performance Test
The standard may require testing the performance of the energy storage battery under abnormal conditions, such as short circuit, overcharge, overdischarge, etc. Through these tests, the protective mechanisms and coping capabilities of the battery can be assessed.
Cycle Life Test
The service life and performance attenuation of the energyStorage battery can be evaluated by conducting cyclic charge and discharge tests. This helps predict how long the battery will last in actual use and develop a maintenance plan.
Battery Management System Evaluation
Battery management systems play a critical role in energy storage batteries, and the UL1973 standard may require an evaluation of the design and functionality of the battery management system to ensure its effectiveness in protecting and managing the battery.
