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December 2016
Volume 68    Issue 12

Satisfying temperature requirements in mobile refuge alternatives

Mining Engineering, 2016, Vol. 68, No. 12, pp. 41-41
Deaton, Kenneth


PREVIEW:

A packaged cooling system is being developed for refuge alternatives (RAs) that will meet U.S. Mine Safety and Health Administration (MSHA) qualification guidelines for deployment in coal mines. This system will allow full occupancy ratings of deployed refuge alternatives to be maintained by keeping the apparent temperature inside the RA from exceeding 35° C (95° F).

Research investigations sponsored by the National Institute for Occupational Safety and Health (NIOSH) have shown that heat buildup caused by occupants in mobile RAs will result in apparent temperatures that exceed the 35° C (95°F) limit established in 30 CFR 7.504. 



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