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MineARC
Systems refuge chambers are designed to provide a safe haven for tunnellers
in the event of an underground emergency. Each robust, steel chamber
is custom-built to individual requirements, and designed to be airtight
once the door and air valve are closed. They are skid mounted, and can
be lifted or towed for easy relocation. The roof of each unit is arched
to fit more easily within the tunnel profile.
Key
features are carbon monoxide and carbon dioxide scrubbing, air conditioning,
three separate sources of air supply, battery backup, and life support
for 36 hours. Units can be supplied for 8, 12, 15 or 20 persons.
The
EMAP unit, or gas scrubbing system, to control the level of poisonous
gases, is in a self contained unit. This is designed to clean air in
confined spaces, and is used in conjunction with either compressed cylinders
of medical grade oxygen, or an oxygen candle. Valving and filtration
of the tunnel compressed air supply is also provided.
The air conditioning, scrubber and lighting systems are normally supplied
by mains power when in standby mode, and switch over automatically to
the battery backup system if there is a supply failure. The batteries
provide 40-hour backup in emergency.
Storage
is provided within the refuge chamber for Medi-Sorb, carbon monoxide catalyst,
first aid kits, blankets, oxygen candles and tools, and there is a self-contained
toilet unit. A gas sampling pump kit is also supplied. There is an emergency
escape hatch for use if the main door becomes damaged or blocked.
The
MineARC Systems refuge chamber is a fully integrated life support system
that provides a flexible and effective solution for all types of tunnel
projects.
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