This Interpretation of Regulations (IR) clarifies specific code requirements relating to battery energy storage systems (BESS) consisting of prefabricated modular structures not on or inside a building for structural safety and fire life safety reviews. There are several ESS techno e are additional Codes and Standards cited to cover those specific technologies. For the sake of brevity, electrochemical technologies will be the prima y focus of this paper due to being. .
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This document provides standards for battery room design and operation. It outlines requirements for civil construction including fire resistance of walls and floors, as well as plumbing, ventilation, electrical systems, and safety/maintenance.
Ventilation systems for stationary batteries must address human health and safety, fire safety, equipment reliability and safety, as well as human comfort. The ventilation system must prevent the accumulation of hydrogen pockets greater than 1% concentration.
The room shall be equally illuminated throughout the entire battery room. 1. The installation shall consist of energy efficient luminaires. 2. The maintained level of emergency lighting required in this area shall not be less than 20 lux at floor level to enable employees to evacuate the workplace safely. 3.
2.1.6 Show compliance with Underwriters Laboratories (UL) Standard 9540, applicable to all battery systems, except lead-acid batteries, UL 9540A for large-scale fire test, CFC 1207.1.5, UL 1741 for utility interactive systems, CFC 1207.3.3, and UL 1973 applicable to all battery types except lead-acid.