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UL 1973
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UL 1973 2nd Edition, February 7, 2018 UL Standard for Safety Batteries for Use in Stationary, Vehicle Auxiliary Power and Light Electric Rail (LER) Applications
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Description / Abstract:
These requirements cover battery systems as defined by this standard for use as energy storage for stationary applications such as for PV, wind turbine storage or for UPS, etc. applications. These systems shall be installed in accordance with NFPA 70, C22.1, or other applicable installation codes.
These requirements also cover battery systems as defined by this standard for use in light electric rail (LER) applications and stationary rail applications such as rail substations. These systems are intended for installation within either the rail car or within a sheltered stationary location such as a rail substation. These battery systems may utilize regenerative braking from the trains as a source of energy for recharging and are intended for direct or indirect connection to the rail power lines. These battery systems are intended for balancing loads during peak hours, serving as an energy storage device during regenerative breaking of the trains, and as a source of emergency power to move trains to the nearest station during power outages.
Appendix B of this standard includes requirements specific to sodium-beta type technologies. Appendix C of this standard includes requirements specific to flowing electrolyte technologies.
This standard evaluates the battery system’s ability to safely withstand simulated abuse conditions. This standard evaluates the system based upon the manufacturer’s specified charge and discharge parameters.
This standard does not evaluate the performance (i.e. capacity measurements under various discharge conditions) or reliability (i.e. capacity measurements under various environmental conditions) of these devices.
Figure 1.1 is a boundary diagram example for a battery system for this application. Figure 1.2 is a boundary diagram example for a module for this application.
These requirements also cover battery systems as defined by this standard for use in light electric rail (LER) applications and stationary rail applications such as rail substations. These systems are intended for installation within either the rail car or within a sheltered stationary location such as a rail substation. These battery systems may utilize regenerative braking from the trains as a source of energy for recharging and are intended for direct or indirect connection to the rail power lines. These battery systems are intended for balancing loads during peak hours, serving as an energy storage device during regenerative breaking of the trains, and as a source of emergency power to move trains to the nearest station during power outages.
Appendix B of this standard includes requirements specific to sodium-beta type technologies. Appendix C of this standard includes requirements specific to flowing electrolyte technologies.
This standard evaluates the battery system’s ability to safely withstand simulated abuse conditions. This standard evaluates the system based upon the manufacturer’s specified charge and discharge parameters.
This standard does not evaluate the performance (i.e. capacity measurements under various discharge conditions) or reliability (i.e. capacity measurements under various environmental conditions) of these devices.
Figure 1.1 is a boundary diagram example for a battery system for this application. Figure 1.2 is a boundary diagram example for a module for this application.