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    NFPA 820-2008 废水处理和收集设备的防火

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    1、NFPA Technical Committee Document Proposal Form NOTE: All Proposals must be received by 5:00 pm EST/EDST on the published Proposal Closing Date. For further information on the standards-making proces NFPA Technical Committee Document Proposal Form NOTE: All Proposals must be received by 5:00 pm EST/。

    2、EDST on the published Proposal Closing Date. For further information on the standards-making proceSequence of Events Leading to Issuance of an NFPA Committee DocumentStep 1: Call for Proposals Proposed new Document or new edition of an existing Document is entered into one of two yearly revision For。

    3、mal InterpretationNFPA 820Fire Protection in Wastewater Treatment and Collection Facilities2008 EditionReference: Tables 4.2, 5.2, and 6.2 F.I. 92-1Background: In Tables 4.2, 5.2, and 6.2(a), foVentilation . Chap. 9, D.4 Construction materials . Table 4.2, 8.3.282065INDEXCou/D 123456 10090807Collect。

    4、ion systems .Screening equipment . D.2.4.8 Chemical and fuel . Annex D82064 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLLow-pressure oxidation units . Table 6.2(a)(14) Sludge . Table 6.2(a)(20), Fig. A.6.2(b), Fig. A.6.2(c),82063INDEXLP-Gas .Ventilation rates . Table 9.1.1.4(2), (3) Hose systems。

    5、 . 7.2.4.3, 10.5.1(2)82062 FIRE PROTECTION IN WASTEWATER TREATMENT AND In-vessel . Table 6.2(a)(23) Definition . 3.3.1482061INDEXPiles .Indexin thereproducedVaults . Table 4.2(26), Table 4.2(28), Table 4.2(31),Table 4.2(32), Table 4.2(36), Table 4.2(37), Fig.D.4Definition .NFPA 82, Standard on Incin。

    6、erators and Waste and Linen Han-dling Systems and Equipment, 2004 edition.NFPA 85, Boiler and Combustion Systems Hazards Code, 2007edition.NFPA 91, Standard for Exhaust SysteD.3.3 Sparks. Sparks generated by the following can be aAnnex E List of Associations with82058 FIRE PROTECTION IN WASTEWATER T。

    7、REATMENT AND COLLECTION FACILITIESsource of ignition for gases of flammabD.2.4.14 Plastic media or wood for trickling filters, rotating D.2.8 Finely Divided Solids and Dusts. Finely divided solids82057ANNEX Dbiological contactors, bio-towers, and other fixed-film systemsaTable D.2 Gases Commonly Fou。

    8、nd in Wastewater Treatment2882056 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESD.2.4.12 Unit processes employing oxygen-enriched atmo-spheres necessitaTable D.1.1 Chemical and Fuel Fire/Explosion HazardsExtent ofClassifiedAreaNEC-Area ElectricalClassification (AllClass I, Group D。

    9、)Material ofConstructionfor Buildingsor StructuresFireProtectionMeasureC.4.7 Where combined sewers are designed to collect both D.2.4.1 Scum pits collect scum, grease, and other floating82054 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESwastewater anB.7 Sludge Treatment. (1) The 。

    10、potential that flammable liquids can enter the system82053ANNEX CB.7.1 Sludge Stabilization. Sludge is the settled solids accumu-lated and subsequently separated from thRetursludgey Aerobic oranaerobic digestion82052 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESB.3 Primary Treatm。

    11、ent. Primary treatment is first-stage sedi-mentation, in which settlFIRE REPORTName of company82051ANNEX BNFPA 820 2007 National Fire Protection AssociationDate of fire Time of fire Operating facilityUnder cA.10.4(7) For an example of a fire report, see Figure A.10.4(7). dispersed with front-end loa。

    12、ders or similar equipment to fully82050 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESADispersion characteristics can also affect detector place-Grade82049ANNEX ADigestergaspipingNaturalgaspipingValveDrainDivision 1 Division 2 Unclassified3.1 m (10 ft) radius (Div. 1)FIGURE A.6.2(。

    13、f) U1.5 m 1.5 mVentilation Method (C) for the Control Building; Illustration of Table 6.2(a), Rows 16c and 17b.82048 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESDivision 1 Division 1.5 m(5 ft) 1.5 m(5 ft) 3.1 m (10 ft)radius (Div. 2)1.5 m (5 ft)radius (Div. 1)4.6 m(5 ft) (5 ft) 。

    14、82047ANNEX ASupplyfanInside entirebuildingExhaust fanControl buildingGradeAnaerobic digesterSludge gaSee KeyGrade82046 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESA.5.1 Additional information on sources of hazards, sourcesof ignition, and mitigation measures associated with liqu。

    15、1.5 m (5 ft) radius0.9 m (3 ft) radius 82045ANNEX A0.9 m (3 ft) radius from vent (Div. 1)from vent (Div. 2)0.5 m(1.5 ft)GradeWet well or basinVentilation (A or NNV) Wet well or basinVentilation (B)WeA.3.3.3 Anaerobic Digestion. Process by-products include a A.3.3.71.1 Dry Well. Dry wells can contain。

    16、 accidental leakage of82044 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESgas c(4) Coordination with security forces or other designatedAnnex A Explanatory Material82043ANNEX Apersonnel to admit the public fire department and to con-trol traffic and personnel(5) Fire extinguish9.3。

    17、.2 Dual ventilation rates for NFPA 70, Class I, Division 1 10.5 Water-Based Fire Protection Systems.82042 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESand Division 2 areas shalTable 9.1.1.4 Minimum Ventilation RatesVentilationperper(22.2galleries82041VENTILATION9.2.8 Air shall be。

    18、 introduced into and exhausted from haz-ardous areas specified in 9.2.7 in a manner that will e8.3.3.5 Combustible Gas Generation and Combustion Pro-CAUTION: Because of the unpredictable nature of materials82040 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIEScesses.8.3.3.5.1 8.2.3 。

    19、For the purpose of this document, materials of construc- ard to other buildings or structures shall be permitted to82039MATERIALS OF CONSTRUCTIONtion shall be divided into the following four ba7.5 Ventilation Monitoring and Signaling Systems.Chapter 8 Materials of Construction82038 FIRE PROTECTION I。

    20、N WASTEWATER TREATMENT AND COLLECTION FACILITIES7.5.1 All continuous ventilation systems shaChapter 7 Fire and Explosion Prevention and7.2.4.1.1 In areas where there is no public water supply or82037FIRE AND EXPLOSION PREVENTION AND PROTECTIONProtection7.1* Scope. This chapter shall establiTable 6.2。

    21、(b) Solids Treatment Processes Sludge Drying82036 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESRow LineLocation andFunctionFire andExplosionHazard Ventilation1Extent of82035SOLIDS TREATMENT PROCESSESTable 6.2(a) ContinuedRow Line Location and FunctionFire andExplosion Hazard Vent。

    22、ilationExtent ofClassified AreaNEC-AreaElectricalClassification(All Class I,Group D)Mat82034 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESRow Line Location and FunctionFire andExplosion Hazard VentilationExtent ofClassified AreaNEC-AreaElectricalClassification(All CTable 6.2(a) C。

    23、ontinued82033SOLIDS TREATMENT PROCESSESRow Line Location and FunctionFire andExplosion Hazard VentilationExtent ofClassified AreaNEC-AreaElectricalClassification(All Class I,Group D)MatTable 6.2(a) Continued82032 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESRow Line Location and 。

    24、FunctionFire andExplosion Hazard VentilationExtent ofClassified AreaNEC-AreaElectricTable 6.2(a) Continued82031SOLIDS TREATMENT PROCESSESRow Line Location and FunctionFire andExplosion Hazard VentilationExtent ofClassified AreaNEC-AreaElectricalClassification(All Class I,Group D)MatTable 6.2(a) Cont。

    25、inued82030 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESRow Line Location and FunctionFire andExplosion Hazard VentilationExtent ofClassified AreaNEC-AreaElectricTable 6.2(a) Continued82029SOLIDS TREATMENT PROCESSESRow Line Location and FunctionFire andExplosion Hazard Ventilatio。

    26、nExtent ofClassified AreaNEC-AreaElectricalClassification(All Class I,Group D)Mat(3) The following codes are used in this table:A: No ventilation or ventilated at less than 12 air changes per hour.LC: Limited-combustible material.LFS: Low flame spread material.NA:NC:NECNNVNR:1The8Table 5.2 Continued。

    27、Extent ofClassified Area1NEC-AreaElectricalClassification(All Class I,Group D)Material ofConstructionfor Buildingsor StructuresFireProtectionMeasuresEntire area ifenclosedDivision 2Table 5.2 Continued82026 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESRow LineLocationandFunctionFi。

    28、re andExplosionHazard VentilationExtent ofClassified Area1NEC-AreaElectricalClasTable 5.2 Continued82025LIQUID STREAM TREATMENT PROCESSESRow LineLocationandFunctionFire andExplosionHazard VentilationExtent ofClassified Area1NEC-AreaElectricalClassification(All Class I,Group D)MaTable 5.2 Continued82。

    29、024 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESRow LineLocationandFunctionFire andExplosionHazard VentilationExtent ofClassified Area1NEC-AreaElectricalClasTable 5.2 Continued82023LIQUID STREAM TREATMENT PROCESSESRow LineLocationandFunctionFire andExplosionHazard VentilationExt。

    30、ent ofClassified Area1NEC-AreaElectricalClassification(All Class I,Group D)MaTable 5.2 Continued82022 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESRow LineLocationandFunctionFire andExplosionHazard VentilationExtent ofClassified Area1NEC-AreaElectricalClasTable 5.2 Continued82021。

    31、LIQUID STREAM TREATMENT PROCESSESRow LineLocationandFunctionFire andExplosionHazard VentilationExtent ofClassified Area1NEC-AreaElectricalClassification(All Class I,Group D)MaTable 5.2 Continued82020 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESRow LineLocationandFunctionFire and。

    32、ExplosionHazard VentilationExtent ofClassified Area1NEC-AreaElectricalClasTable 5.2 Continued82019LIQUID STREAM TREATMENT PROCESSESRow LineLocationandFunctionFire andExplosionHazard VentilationExtent ofClassified Area1NEC-AreaElectricalClassification(All Class I,Group D)MaChapter 5 Liquid Stream Tre。

    33、atment Processes5.1.2 This chapter shall not apply to treatment systems serv-D: No ventilation or ventilated at less than six air changes per hour.FE: Portable fire extinguiTable 4.2 ContinuedClassifieduntreated or partiallytreated wastewaterEnclosed82017COLLECTION SYSTEMSb B Division 2 NC, LC, or L。

    34、FS35 WASTEWATERHOLDING BASINS,LINED OR UNLINEDOpen structures holdingstoTable 4.2 Continued82016 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESRow LineLocationandFunctionFire andExplosionHazard VentilationExtent ofClassified AreaNEC-AreaElectricalClassTable 4.2 Continued82015COLLE。

    35、CTION SYSTEMSRow LineLocationandFunctionFire andExplosionHazard VentilationExtent ofClassified AreaNEC-AreaElectricalClassification(All Class I,Group D)Material ofConstruTable 4.2 Continued82014 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESRow LineLocationandFunctionFire andExplo。

    36、sionHazard VentilationExtent ofClassified AreaNEC-AreaElectricalClassTable 4.2 Continued82013COLLECTION SYSTEMSRow LineLocationandFunctionFire andExplosionHazard VentilationExtent ofClassified AreaNEC-AreaElectricalClassification(All Class I,Group D)Material ofConstruTable 4.2 Continued82012 FIRE PR。

    37、OTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESRow LineLocationandFunctionFire andExplosionHazard VentilationExtent ofClassified AreaNEC-AreaElectricalClass82011COLLECTION SYSTEMSRow LineLocationandFunctionFire andExplosionHazard VentilationExtent ofClassified AreaNEC-AreaElectricalClassi。

    38、fication(All Class I,Group D)Material ofConstructionfor Buildings 3.3.64.4 Wastewater Treatment.for the supply air that is exhausted. The number of air changes3.3.70 Wastewater. The spent water of a community that is a4.1* General.ClassifiedNNotes:(1)ventilationT(2)3.3.54 Sewer. A single pipe or sys。

    39、tem of pipes or conduits 3.3.55.1 Activated Sludge. A microbial mass grown in aera-8209DEFINITIONSthat carries wastewater or drainage water.3.3.54.1 Branch Sewer. A 3.3.32.2* Fuel Gas. A gas used as a fuel source, including (8141 kJ/kg), where tested in accordance with NFPA 2598208 FIRE PROTECTION I。

    40、N WASTEWATER TREATMENT AND COLLECTION FACILITIESnatural gas, man3.3.7.2 Screening Chamber. A chamber or enlargement of a 3.3.18.3 Trickling Filter. A treatment unit process consist-8207DEFINITIONSsewer in which large suspended or floating solids or materialis remNFPA 499, Recommended Practice for th。

    41、e Classification of Com- 3.2.2* Authority Having Jurisdiction (AHJ). An organization,8206 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESbustibl1.4 Retroactivity. The provisions of this standard reflect a con- NFPA 11, Standard for Low-, Medium-, and High-Expansion8205REFERENCED PU。

    42、BLICATIONSsensus of what is necessary to provide an acceptablNFPA 8201.1.3 This standard shall not apply to the following:8204 FIRE PROTECTION IN WASTEWATER TREATMENT AND COLLECTION FACILITIESStandard forFire Protection in Wastewater Treatmentand Collection FaContentsChapter 1 Administration . 82041。

    43、.1 Scope . 82041.2 Purpose . 82041.3 AppliTechnical Committee on Wastewater Treatment PlantsJohn R. Anderson,A. W. Ballard,Rep. NationalJohn N. HarrGary Hewitt,Rep. WaterAssociation,Agency,Mark Kreinbihl,(Alt. to G.MDavid R. Hague,ThischangCopyright 2007 National Fire Protection Association. All Rig。

    44、hts Reserved.Facilities,issuedsupersedes2007.responsibilitytohazardonInitialissuedwithmendedPrrevisedcontainsvariousmakeNFPStyleGlossaryDADDITIONAL NOTICES AND DISCLAIMERSUpdating of NFPA DocumentsUsers of NFPA codes, standards, recommended practices, and guides should be aware thatthese documents m。

    45、ay be superseded at any time by the iIMPORTANT NOTICES AND DISCLAIMERS CONCERNING NFPA DOCUMENTSNOTICE AND DISCLAIMER OF LIABILITY CONCERNING THE USE OF NFPA DOCUMENTSNFPA codes, standards, recommended practices, and guides, of which theNFPA820 Standard for Fire Protection in Wastewater Treatment and Collection Facilities 2008 Edition NFPA, 1 Batterymarch Park, Quincy, MA 02169-7471 An International Codes and Standards Organization 。

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