Mine_rescue_chamber
Mine rescue chamber
Emergency shelter in underground environments
A mine rescue chamber is an emergency shelter installed in hazardous environments, typically underground. It is also known as refuge chamber,[1] refuge bay, or refuge alternative. Refuge chambers come in multiple types and models, and are used in multiple industries including metalliferous mining, coal, tunnelling and petrochemical facilities.
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In emergencies, when evacuation is no-longer safe or practical, the rescue chamber is designed to provide a safe and secure ‘go-to’ area for personnel to gather and await extraction.
Essentially, rescue chambers are sealed environments built to sustain life in an emergency or hazardous event such as a truck fire or toxic gas release. They provide a secure area with shelter, water, and breathable air, for people to remain until they are rescued or the hazard subsides.[2]
Refuge chambers need to be sealed to prevent the ingress of toxins such as smoke contaminating the breathable air within the chamber. The sealed area has a closed circuit breathing apparatus; where carbon dioxide and other toxins are removed, oxygen is added, and temperature and humidity are maintained, all while protecting occupants from the external threat. [3]
The capacity and duration can vary depending on the chamber build. Communication equipment is also available. The chambers are required to be located in close proximity to worker areas.[4]