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Content Description Per NFPA's requirements, when purchasing NFPA 2021 Standards and/or 2020 NFPA 70 (NEC), you must subscribe to at least one more NFPA Standard to complete your purchase. In order to fulfill this requirement, we automatically add 2019 NFPA 900 to your cart. This title may be removed during checkout if you choose to add a different NFPA standard to your cart, and pricing will be recalculated accordingly.
In response to newly identified fire safety concerns, the 2015 NFPA 85 presents updated requirements for boiler and combustion systems.
Boiler hazards not only impact operational performance, they can cause explosions and jeopardize the lives of facility occupants and maintenance personnel. Revised for 2015, NFPA 85: Boiler and Combustion Systems Hazards Code gives everyone involved with large boiler installations and pulverized fuel systems the information they need for fire safety compliance -- from design and installation to inspection.
NFPA 85 presents requirements for the full range of equipment:
Large boilers, including atmospheric fluidized bed boilers with a minimum fuel input rating of 12.5 million Btu/hr (3.6 MW)
Stoker operations
Pulverized fuel systems
Fired or unfired steam generators used to recover heat from combustion turbines
Major changes in the 2015 edition of NFPA 85 include:
New requirements to facilitate safe purging of fuel gas piping in and out of service, including requiring a designated equipment isolation valve, purging upstream piping in accordance with the applicable standard, and minimum safety requirements for purging piping and equipment downstream of the equipment isolation valve.
Several provisions concerning multiple burner boilers (formerly in Chapter 6) were relocated to Chapter 4, General Requirements to indicate they apply to all equipment under the scope of NFPA 85. Relocated requirements include conducting a process hazard analysis for unattended operation, restrictions on removing interlocks from service during startup or operation, and preventing the flow of flue gases from a common stack into an idle boiler or Heat Recovery Steam Generator (HRSG).
Safety-rated programmable logic controllers are recognized in the Code for use with single-burner boilers where they are certified as at least SIL 3-capable according to IEC 61508.
Chapter 9, Pulverized Fuel Systems, was completely rewritten to separate requirements for direct-fired and indirect-fired systems to help users identify and apply requirements for specific equipment.
Boiler or combustion system designers, operators, facility managers, and enforcers all need to stay up-to-code with NFPA 85
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About NFPAThe mission of the international nonprofit NFPA, established in 1896, is to reduce the worldwide burden of fire and other hazards on the quality of life by providing and advocating consensus codes and standards, research, training, and education.
The world's leading advocate of fire prevention and an authoritative source on public safety, NFPA develops, publishes, and disseminates more than 300 consensus codes and standards intended to minimize the possibility and effects of fire and other risks.
NFPA membership totals more than 70,000 individuals around the world
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