RE: NFPA Manual
	Norem, Nancy 
	to:
	Joe Kordzi, Gannon, Maureen
	10/19/2010 09:14 AM
	Cc:
	"Fischer, Diane M.", "Lucas, Kyle J.", mack.mcguffey
	Show Details



History:	This message has been replied to and forwarded.



Joe,
 
The following information indicates sections of the NFPA 85 that are 
applicable to SJGS.  B&V has added some comments (blue text) that explains 
how the particular article applies to SJGS.
 
 
Article 1.3.1: The code shall apply to new installations and to major 
alterations or extensions that are contracted for subsequent to the 
effective date of this code. [As long as SJGS is doing any major 
modifications, it has to be brought up to code]
 
Article 1.4.1 Unless otherwise specified, the provisions in this code 
shall not apply to facilities equipment, structures, or installations that 
existed or were approved for construction or installation prior to the 
effective date of the code. [This means that the consent decree 
modifications were not required to meet the 2007 version of the code, as 
they were in progress before the code took effect]
 
Article 4.6.1: The furnace shall be capable of withstanding transient 
design pressures and normal operating pressures without permanent 
deformation due to yield or buckling of any support member. Transient 
pressures to be considered shall include but shall not necessarily be 
limited to misoperation of fans or dampers and a master fuel trip while 
operating at maximum design load.
 
Article 6.5.1.3 (and following subsections): Balanced Draft Units. All 
boilers with a fan located in the flue gas path downstream of the boiler 
enclosure shall be designed in accordance with either 6.5.1.3.1 or 
6.5.1.3.2.. [this is the new section that clarifies that SJGS's  boiler 
furnaces that are currently operating in a pressurized mode but with 
booster fans located between the boiler and the stack are to be 
constructed with similar design principles as units that are operated in a 
balanced draft mode. Previously, this was not clear in the code and hybrid 
(forced draft units with booster fans) units were not  specifically 
subject to this requirement]
    6.5.1.3.1 The furnace and flue gas removal system shall be designed so 
that the maximum head capability of the induced draft fan system with 
ambient air does not exceed the continuous design pressure of furnace, 
ducts, and associated equipment.
   6.5.1.3.2 Where a furnace pressure control system in accordance with 
6.5.2 is provided, the furnace shall be designed for the transient design 
pressures in 6.5.1.3.2.1 and 6.5.1.3.2.2.
    6.5.1.3.2.1 Positive Transient Design Pressure. The positive transient 
design pressure shall be at least, but shall not be required to exceed, 
+8.7 kPa (+35 in. of water).
    6.5.1.3.2.2 Negative Transient Design Pressure. The negative transient 
design pressure shall be at least as negative as, but shall not be 
required to be more negative than, ?8.7 kPa (?35 in. of water).
 
 
Nancy
 
 

 
 

From: Kordzi.Joe@epamail.epa.gov [mailto:Kordzi.Joe@epamail.epa.gov] 
Sent: Monday, October 18, 2010 11:46 AM
To: Gannon, Maureen
Cc: Norem, Nancy
Subject: Re: NFPA Manual

Thanks Maureen.  Can you tell us what specific part of NFPA 85: Boiler and 
Combustion Systems Hazards Code you are relying on?


Regards,

Joe

" ... and miles to go before I sleep."
-- Robert Frost


From: 	"Gannon, Maureen" <Maureen.Gannon@pnmresources.com> 
To: 	Joe Kordzi/R6/USEPA/US@EPA 
Cc: 	"Norem, Nancy" <Nancy.Norem@pnmresources.com> 
Date: 	10/18/2010 11:46 AM 
Subject: 	NFPA Manual




Joe- PNM has sent a copy to you of the following: 
NFPA 85: Boiler and Combustion Systems Hazards Code 
Current Edition: 2007 
  
It should come via UPS within the next three days from the NFPA.  Thank 
you.   
  
Maureen Gannon 
Director, Environmental Services
PNM Resources 
Alvarado Square, MS 2104 
Albuquerque, NM  87158 
(office) 505.241.2974 
(fax) 505.241.2384 
(cell) 505.249.8301 
maureen.gannon@pnmresources.com 
  
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