As an addition to a large extraction system in an Aluminium Mill (more of that in a future newsletter), Paramount were asked to install a CO2 Evacuation System. This operates after a CO2 fire extinguishing system has activated. CO2, being heavier than air, collects in any low lying areas and as they had a large access trench under a crane assembly, the CO2 would fall to this point and not be easily removed. We had to install ducting along the length of the trench to evacuate it fully before personnel could regain access. The trench is fully cleared in 15 minutes.
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