NFPA 654-2020 Standard for the Prevention of Fire and Dust Explosions from the Manufacturing, Processing, and Handling of Combustible Particulate Solids.
N Interior walls erected foi the purpose of limiting lire spread shall he designed in accordance with NFPA 221 and have a minimum 1—hour lire resistance rating.
N Fire Doors.
N Openings in fire walls and in fire harrier walls shall be protected by sell-closing lire doors that have a fire proteclion rating, when tested in accordance with NFPA 25’2, equivalent to the wall design.
N Fire doors shall be installed according to NFPA O and shall iionnallv be in the closed laisilioll.
N F.gres. Means of egress shall cnmpl with NFPA 10!.
N* Means of egress lou’ buildings vu building compact. Ilirlits that contain a deflagratioui lka’ nil area shall be designed in accordance with Section 7.11 of NFPA 101.
N Penetrations. Where floors, walls, ceilings, and other partitions have lweii erected to control the spread of fire or dellagrations. penetrations in these structures shall be sealed to maintain their fire resistance rating and their phs’sical integrity in a deflagr.atioii. (So
N Fire Resistance Rating.
N* Interior stairs and elevators shall be enclosed in siiafLs (lesiguiedl to prevent the inigrawin of (IList and that have a minimum fire resistance rating of in accordance with Section 8.6 of NFPA 10!.
N* Doors that are the automatic-closing or self—closing type and that have a minimum tire protection rating of 1 hour shall be prosided at cacti landing.
N Stairs, elevators, and manlifts that serve only open- deck Iloors, niezi,anines, and platforms shall not be required to be enclosed.
N* Floors and load-bearing walls that are exposed to dust explosion hazards shall be designed to preclude failure during an explosion.
N 9.2.3* Deflagration Venting of Buildings or Building Compartments.
N 9.2.3.le II a building or building compartment contains a dust explosion haird area external to protected equipment as specified in or the building or building compartment shall be provided with dellagration venting in accordance with NFPA 68.
N Vent Closures.
N Vent closures shall be directed toward a restricted area.
N The vent closure shall not be a missile hazard.
N 11w liteball and the blast pressure that are created by the venting process shall not impinge on unrestricted personnel pathways.
N 9.3 Equipment Design.
N 9.3.1 * General.
N Equipment shall be maintained and operated in a titanner thai nhiniinites the escape ol dust.NFPA 654 pdf download.