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Date: 16/11/23

Why isn't it fire rated?

Our in-house R&D team spent years researching and testing prototypes to provide the best solution for charging batteries in a location that can be stored away from critical buildings, whilst still being accessible and easily mobile.  You might be wondering why our highly tested products, designed to suppress fires aren’t fire rated. And there are specific reasons behind this… 

The EN14470 Fire Rating standard was written for flammable liquids and not lithium-ion batteries, meaning any test procedures and conclusions are incomparable to lithium-ion battery charging products. 

The standard also requires that the ventilation to the unit shut off at 70℃. However, when a lithium-ion battery goes into thermal runaway and releases dangerous gases, ventilation is required to avoid a large explosion 

Both EN14470 and EN 1363-1, fire-rated units can contain a fire on the inside or prevent it from the outside but both designs lead to much hotter charging environments, encouraging thermal runaway.

The heat curve for the fire-rated test below takes 20 minutes to reach 800 degrees. However, a lithium-ion thermal runaway event will reach 800℃ in seconds, making it a very different comparison.

It’s also difficult to move indoor fire-rated cabinets, especially in the event of a fire, where there could be a build-up of gases inside.

Our PowerStor unit is a complex but vital addition to the market, created specifically for the suppression of lithium-ion battery fires in a compact and accessible way.If you’re interested in a site trial, you can give our team a call on 023 9238 0280

Find out more about the PowerStor here