NFPA 85: Boiler and Combustion Systems Hazards Code
Current Edition: 2011 Next Edition: 2015

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NFPA 85:
2011 Edition
Item #: 8511
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The next edition of this standard is now open for NITMAM.

What is NFPA 85?
NFPA 85: Document Scope
1.1* Scope. This code shall apply to single burner boilers, multiple burner boilers, stokers, and atmospheric fluidized-bed boilers with a fuel input rating of 3.7 MWt (12.5 million Btu/hr) or greater, to pulverized fuel systems, to fired or unfired steam generators used to recover heat from combustion turbines [heat recovery steam generators (HRSGs)], and to other combustion turbine exhaust systems. 1.1.1 This code shall cover design, installation, operation, maintenance, and training. 1.1.2 This code shall cover strength of the structure, operation and maintenance procedures, combustion and draft control equipment, safety interlocks, alarms, trips, and other related controls that are essential to safe equipment operation. 1.1.3 Coordination of the design and operating procedures of the boiler furnace or HRSG system and any flue gas cleanup systems downstream of the postcombustion gas passes shall be required. Such coordination shall include requirements for ensuring a continuous flow path from the combustion air inlet through the stack.
NFPA 85 contributes to operating safety and prevents explosions and implosions in boilers with greater than 12.5 MMBTUH, pulverized fuel systems, and heat recovery steam generators. Official document scope
What does NFPA 85 address?
Provisions apply to boiler design, installation, operation, maintenance, and training for the full range of large boiler installations and pulverized fuel systems. Among topics covered are strength of the structure, combustion and draft control equipment, safety interlocks, alarms, trips, and other related controls that are essential to safe equipment operation. Table of Contents

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