为什么BESS安全至关重要及推荐解决方案.pdf

1、Why BESS Safety Matters&Recommended SolutionsWhat Youll Learn Hazards within an ESS Recommended Protection Strategies Introduction to Fike BlueTM Thermal runaway chemical reaction Electrical fire from charging equipment and switches Explosion from off gassing of batteries Vent gases from failing bat

2、teries,several hundred liters of gasses Misinformation for AHJs and decision makersCommon BESS Safety RisksThe Problem of Thermal Runaway An extremely dangerous and unpredictable exothermic chemical reaction within a li-ion cell Caused by a malfunction or damage to the cell that creates an internal

3、short across the separator layer Generates an intense amount of heat;accelerate the reaction Toxic and flammable gasses build up Cell ruptures Once the reaction starts within a single cell it cannot be stopped Can cause Cascading Thermal RunawayOff-Gassing&Explosion Risks In addition to the fire ris

4、k caused by thermal runaway,an explosion risk is created as well NFPA 855-“Explosion Control”Off-gassing isnt just an explosion risk,as the toxic fumes can force evacuations of nearby communitiesPerformance Review of Current Protection MethodsFirefighting Water&Sprinklers Requires potentially thousa

5、nds of gallons of water to control the fire Chemicals from battery cells run off into the groundwater and environment May cause arcing which can provide an ignition source for combustible gasses and vapors.Chemical Agents&Aerosols May degrade at extreme temperatures A ventilation system may push out

6、 the protective gases as the event continues Have a boiling point even lower than water;do not have a meaningful thermal capacity for absorbing heatContainment/“Let it Burn”If all batteries are allowed to burn,an exorbitant amount of toxic gas is released Many AHJs wont accept an ESS without a prote