30 C.F.R. § 77.212

Current through November 30, 2024

Section 77.212 - Draw-off tunnel ventilation fans; installation

When fans are used to ventilate draw-off tunnels the fans shall be:

(a) Installed on the surface;

(b) Installed in fireproof housings and connected to the tunnel openings with fireproof air ducts; and,

(c) Offset from the tunnel opening.

30 C.F.R. § 77.212