Is there any code reference to these new scooters for charging requirements and protection for their charging stations?
For building safety codes, one should consider the subsection __.3.2 Protection from Hazards of the Life Safety Code applicable occupancy chapters 12 through 42 and Section 8.7 of its core chapters. The lithium batteries are a fire hazard requiring consideration of protection from any area having a degree of hazard greater than that normal to the general occupancy of the building or structure.
Lithium battery failure and overheating results in a process called thermal runaway, which is a reaction within thebattery causing internal temperature and pressure to rise at a quicker rate then can be dissipated. Once one battery cell goes into thermal runaway, it produces enough heat to cause adjacent battery cells to also go into thermal runaway. This produces a fire that repeatedly flares up as each battery cell in turn ruptures and releases its contents.
I would think protecting the charging station area with an automatic extinguishing system may be a viable protection of the charging stations. When the building does not have an automatic sprinkler system, sprinklers are permitted by 220.127.116.11 to be supplied by the domestic water supply and its associated distribution piping. The domestic water supply must provide a sufficient volume of water at the appropriate pressure to deliver a sprinkler discharge density of 0.15 gpm/sf within the hazardous contents area.
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