De-energizing a non-intrinsically safe automatic fire sensor and warning systems after a main mine fan stoppage
Series: Program information bulletin -- no. P11-51; Program information bulletin -- no. P11-51.
Publisher: U.S. Dept. of the Interior, Mine Safety and Health Administration
Published: 2011
Place of publication: Arlington, Va
Language: eng
Format: [electronic resource]
Subjects: Coal-mining machinery; Safety regulations; Coal mines and mining; Safety measures
Notes: Title from title screen (viewed on Feb. 14, 2012).

"Issue date: 11/28/2011"