Safe Area 2 : An area where hot work such as cutting and welding, burning, or grinding is done routinely and frequently and has been identified, inspected, and designated as being safe for hot work operations
NFPA 122 Standard for Fire Prevention and Control in Metal/ Nonmetal Mining and Metal Mineral Processing Facilities, 2004 ed. http://catalog.nfpa.org/NFPA-122-Standard-for-Fire -Prevention-and-Control-in-MetalNonmetal-Mining-an d-Metal-Mineral-Processing-Facilities-Prior-Years- P4168.aspx, (Std: FrPrev and Cont in Metal/ Nonmetal Mining and Metal Mineral Procss Fcilty - Amer) {254 NFC}