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Code of Federal Regulations Title 30. Mineral Resources § 30.57.4504 Fan installations

Current as of January 02, 2025 | Updated by Findlaw Staff

(a) Fan houses, fan bulkheads for main and booster fans, and air ducts connecting main fans to underground openings shall be constructed of noncombustible materials.

(b) Areas within 25 feet of main fans or booster fans shall be free of combustible materials, except installed wiring, ground and track support, headframes, and direct-fired heaters. Other timber shall be coated with one inch of shotcrete, one-half inch of gunite, or other noncombustible materials.

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Cite this article: FindLaw.com - Code of Federal Regulations Title 30. Mineral Resources § 30.57.4504 Fan installations - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-30-mineral-resources/cfr-sect-30-57-4504/

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