UL SUBJECT 79B-2012 OUTLINE OF INVESTIGATION FOR POWER-OPERATED PUMPS FOR DIESEL FUEL BIODIESEL FUEL DIESEL BIODIESEL BLENDS WITH NOMINAL BIODIESEL CONCENTRATIONS UP TO 20 PERCENT .pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNovember 2, 20121UL 79BOUTLINE OF INVESTIGATIONFORPOWER-OPERATED PUMPS FOR DIESEL FUEL, BIODIESEL FUEL,DIESEL/BIODIESEL BLENDS WITH NOMINAL BIODIESELCONCENTRATIONS UP TO 20 PERCENT (B20), KEROSEN

2、E, AND FUEL OILIssue Number 1November 2, 2012Summary of TopicsThis is the first issue of the Outline of Investigation for Power-OperatedPumps for Diesel Fuel, Biodiesel Fuel, Diesel/Biodiesel Blends WithNominal Ethanol Concentrations Up To 20 Percent (B20), Kerosene, andFuel Oil, UL 79B.COPYRIGHT 20

3、12 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNOVEMBER 2, 2012UL 79B2No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSINTROD

4、UCTION1 Scope .62 General 72.1 Components .72.2 Units of measurement .82.3 Undated references .83 Glossary .8CONSTRUCTION4 Assembly 95 Materials 105.1 Metallic materials 105.2 Nonmetallic materials 115.3 Materials system level 145.4 Casting impregnation materials 145.5 Internal parts .146 Bodies, Co

5、vers, and Heads .147 Drive-Shaft Seals 158 Diaphragms .159 Springs .1510 Floats .1611 Air Separators 1612 Strainers .1613 Outlet Pressure Regulation 1714 Pressure Relief .1815 Mounting and Base .1816 Guards 1817 Piping and Fittings 1918 Hose Nozzle Valve, Hose, and Coupling .2019 Conduit Seals 2120

6、Electrical Equipment 2221 Supply Connections .2422 Current-Carrying Parts 2623 Insulating Material 2624 Internal Wiring 2824.1 Mechanical protection .2824.2 Types of wire 2824.3 Splices and connections 2925 Separation of Circuits .3126 Capacitors .3127 Grounding .3227.1 General .3227.2 Grounding ide

7、ntification .3328 Motors .3428.1 Construction .3428.2 Overload protection .3428.3 Brushes and brush holders 3529 Overload- or Thermal-Protective Devices 36NOVEMBER 2, 2012 UL 79B 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL30 Switches and

8、 Controls .3631 Spacings 37PROTECTION OF PERSONNEL32 General 3933 Sharp Edges .3934 Enclosures and Guards 4035 Materials .4336 Surface Temperatures .4337 Locking Mechanism .4438 Control Application 4439 Secondary Circuits 4439.1 General .4439.2 Protection of wiring .45PERFORMANCE40 General 4541 Long

9、 Term Exposure Test .4641.1 General .4641.2 Samples 4741.3 Method .4741.4 Results .4842 High Pressure Leakage Test .4843 Endurance Test Pumps 5044 Hydrostatic Strength Test 5045 Retention Test for Screws and Bolts 5146 Deformation Test .5147 Leakage of Wire Seal Test .5248 Endurance Test for Air Sep

10、arators 5349 Blocked Outlet Test .5350 Pressure Relief Test 5351 Float Buoyancy Test 5352 Dimensional Stability of Floats Test .5453 Weight Change of Floats Test 5454 Float Crushing Test .5555 10-Day Moist Ammonia-Air Stress Cracking Test .5656 Tests on Sealing Compounds 5657 Metallic Coating Thickn

11、ess Test 5758 Starting Current Test 5959 Input Test 5960 Temperature Test .5960.1 General .5960.2 Maximum normal load 6361 Dielectric Voltage-Withstand Test .6362 Grounding Continuity Test .6463 Rain Test 6564 Submersion Test .6865 Conductor Secureness Test 6866 Insulation Resistance Test .6867 Leak

12、age Current Test .7168 Pneumatic Parts Pressure Distortion Test 73NOVEMBER 2, 2012UL 79B4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL69 Pneumatic Parts Endurance 7470 Pneumatic Parts Impact Test .74MANUFACTURING AND PRODUCTION TESTS71 Gene

13、ral 74INSTRUCTIONS72 General 76RATING73 Details .77MARKING74 General 7775 Cautionary Markings 7976 Permanence of Marking .80SUPPLEMENT SA - Test FluidsSA.1 Representative aggressive combustible test fuel mixtures .SA1NOVEMBER 2, 2012 UL 79B 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODU

14、CTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINTRODUCTION1 Scope1.1 These requirements cover products described in 1.2 when used with one or more of the fuelsdescribed in 1.3.1.2 These requirements cover electrically-, hydraulically-, or pneumatically-driven power-operated pumpsfor use with petrol

15、eum products in the following applications:a) Self-contained dispensing devices and submerged pumps used in storage tanks that providethe fuel to remote control dispensing devices. They are intended for operation at dischargepressures of 50 pounds per square inch (psig) (345 kPa), or the marked maxi

16、mum dischargepressure rating, when less, with the ambient and liquid temperature within the range of minus29C (minus 20F) 52C (125F).b) Dispensing systems to transfer the fuel from a tank or container to a vehicle or anothercontainer. They are intended for operation at the marked maximum discharge p

17、ressure, or less,with the ambient and liquid temperature within the range of minus 29C (minus 20F) 52C(125F).c) Vapor recovery applications for dispensing devices. They are intended to operate under avacuum at the inlet and a maximum discharge pressure of 50 psig (345 kPa), or markeddischarge pressu

18、re, whichever is less.1.3 Pumps covered by these requirements are intended for use with one or more of the following:a) Diesel Fuel and diesel/biodiesel blends with nominal biodiesel concentrations up to 5 percent(B0 B5) formulated in accordance with the Standard Specification for Diesel Fuel Oils,

19、ASTMD975.b) Diesel/biodiesel blends with nominal biodiesel concentrations from 5 percent up to 20percent (B6 B20) formulated in accordance with the Standard Specification for Diesel Fuel Oil,Biodiesel Blends (B6 B20), ASTM D7467.c) Biodiesel (B99.9/B100) formulated in accordance with the Standard Sp

20、ecification forBiodiesel Fuel Blend Stock (B100) for Middle Distillate Fuels, ASTM D6751.d) Kerosene formulated in accordance with the Standard Specification for Kerosine, ANSI/ASTM D3699.e) Fuel Oil (Heating Oil) formulated in accordance with the Standard Specification for FuelOils, ASTM D396.1.4 R

21、equirements for the installation and use of these products are included in the Flammable andCombustible Liquids Code, ANSI/NFPA 30; the Motor Fuel Dispensing Facilities and Repair GaragesCode, ANSI/NFPA 30A; and the National Electrical Code, ANSI/NFPA 70.NOVEMBER 2, 2012UL 79B6UL COPYRIGHTED MATERIA

22、L NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL1.5 These requirements do not cover:a) Oil burner pumps, which are evaluated under the Standard for Pumps for Oil-BurningAppliances, UL 343.b) Pumps for engine-powered automotive equipment.c) Pumps for marine use whic

23、h are evaluated under the Standard for Mechanically andElectrically Operated Fuel Pumps for Marine Use, UL 1130.d) Pumps for use in chemical, petrochemical, or petroleum processing plants; utility powerplants; petroleum production facilities; pipeline pump stations; pipeline or marine terminals; orb

24、ulk plant distribution and related facilities.e) Pumps used in mobile applications, such as on tank trucks, portable tanks, or portablecontainers mounted on vehicles.f) Pumps rated more than 600 volts.g) Pump assemblies also provided with a flammable liquid meter or electrically-operatedshutoff valv

25、e, which are evaluated in accordance with the Outline of Investigation for Power-Operated Dispensing Devices for Gasoline and Gasoline/Ethanol Blends With Nominal EthanolConcentrations Up To 85 Percent (E0 E85), UL 87A.h) Pumps intended for use with gasoline and gasoline/ethanol blends which are eva

26、luated inaccordance with the Outline of Investigation for Power Operated Pumps for Gasoline andGasoline/Ethanol Blends With Nominal Ethanol Concentrations Up To 85 Percent (E0 E85),UL 79A.1.6 The pump assembly may be constructed such that it provides for the installation and use of a hoseand hose no

27、zzle valve.2 General2.1 Components2.1.1 Except as indicated in 2.1.2, a component of a product covered by this outline shall comply with therequirements for that component.2.1.2 A component is not required to comply with a specific requirement that:a) Involves a feature or characteristic not require

28、d in the application of the component in theproduct covered by this outline, orb) Is superseded by a requirement in this outline.NOVEMBER 2, 2012 UL 79B 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL2.1.3 A component shall be used in accord

29、ance with its rating established for the intended conditions ofuse.2.1.4 Specific components are incomplete in construction features or restricted in performancecapabilities. Such components are intended for use only under limited conditions, such as certaintemperatures not exceeding specified limit

30、s, and shall be used only under those specific conditions.2.1.5 Electrical components, including motors and wiring, when incorporated by a manufacturer in anassembly with a pump, and including the means provided in the pump assembly for electrical connections,shall comply with the requirements for e

31、quipment for use in hazardous locations, Class I, Group D,National Electrical Code, ANSI/NFPA 70, Articles 500 and 501.2.2 Units of measurement2.2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory orapproximate information.2.3 Undated references2.3.1 Any

32、undated reference to a code or standard appearing in the requirements of this outline shall beinterpreted as referring to the latest edition of that code or standard.3 Glossary3.1 For the purpose of this outline, the following definitions apply.3.2 DIESEL/BIODIESEL BLENDS Blended fuels composed of a

33、 diesel component and a biodieselcomponent. The numerical value corresponding to the biodiesel component determines the blend rating(such as B20 for 20% biodiesel and 80% diesel).3.3 HAZARDOUS LOCATIONS Locations in which flammable gases or vapors are or may bepresent in the air in quantities suffic

34、ient to produce explosive or ignitable mixture.3.4 INTRINSICALLY SAFE CIRCUIT A circuit incapable of releasing sufficient electrical energyunder normal or abnormal conditions to cause ignition of a specific hazardous atmospheric mixture.Abnormal conditions include unintentional damage to any part of

35、 the equipment or wiring, insulation orother malfunction of electrical components, application of overvoltage, adjustment and maintenanceoperations, and other similar conditions.3.5 LINE-VOLTAGE CIRCUIT A circuit involving a potential of not more than 600 volts and havingcircuit characteristics in e

36、xcess of those of a low-voltage circuit.3.6 LOW-VOLTAGE CIRCUIT A circuit involving a peak open-circuit potential of not more than 42.2volts supplied by:a) A battery;b) A Class 2 transformer; orNOVEMBER 2, 2012UL 79B8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITH

37、OUT PERMISSION FROM ULc) A combination of a transformer and a fixed impedance that, as a unit, complies with theperformance requirements for Class 2 transformers in accordance with the Standard forStandard for Low Voltage Transformers Part 1: General Requirements, UL 5085-1 and theStandard for Low V

38、oltage Transformers Part 3: Class 2 and Class 3 Transformers, UL5085-3.A circuit derived from a line-voltage circuit by connecting a resistance in series with the supplycircuit as a means of limiting the voltage and current is not a low-voltage circuit.3.7 RAINPROOF ENCLOSURE An enclosure that preve

39、nts the entrance of a beating rain to theextent that there is no wetting of electrical parts and no water enters a compartment housing fieldinstalled wiring.3.8 SEALS, DYNAMIC A seal that is subject to mechanical movement or other applied forces thatresult in movement or flexing of the seal under no

40、rmal use conditions.3.9 SEALS, STATIC A seal that is not subject to mechanical movement or other applied forces otherthan compression forces that are applied during installation and maintained during normal useconditions.CONSTRUCTION4 Assembly4.1 The construction of a pump shall be such that parts c

41、an be assembled in the intended manner afterbeing dismantled to the extent needed for replacement of parts or for other maintenance or servicing.4.2 When a pump requires the use of special pipe flanges, gaskets, bolts, or other special fittings or partsfor making connections, such parts shall be fur

42、nished as part of the pump assembly.4.3 A product shall be formed and assembled so that it has the strength and rigidity required to resist theabuses to which it is subjected without resulting in the risk of fire, electric shock, or injury to persons dueto total or partial collapse with:a) Resulting

43、 reduction of spacings;b) Loosening or displacement of parts; orc) Other defects.4.4 A pump-motor assembly to be shipped from the manufacturer disassembled shall be provided withthe marking described in 74.9.NOVEMBER 2, 2012 UL 79B 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORD

44、ISTRIBUTION WITHOUT PERMISSION FROM UL5 Materials5.1 Metallic materials5.1.1 General5.1.1.1 A metallic part, in contact with the fuels anticipated by these requirements, shall be resistant tothe action of the fuel if degradation of the material will result in leakage of the fuel or if it will impair

45、 thefunction of the device. See the Long Term Exposure Test, Section 41.5.1.1.2 The exposed surfaces of metallic parts shall be resistant to atmospheric corrosion if this corrosionwill lead to leakage of the fluid or if it will impair the function of the device. The material shall comply withthe req

46、uirements in Atmospheric corrosion, 5.1.2.5.1.1.3 Metallic parts in contact with the fuels anticipated by these requirements shall not be constructedof lead, or materials that are substantially lead. In addition, no coatings or platings containing lead shallbe used, such as terne-plated steel.5.1.1.

47、4 With reference to the above requirements, metallic parts include metallic materials used to formfluid confining parts as well as metallic coatings or plating that may be applied to a base material.5.1.2 Atmospheric corrosion5.1.2.1 Metallic materials used for fluid confining parts shall be resista

48、nt to atmospheric corrosion. Inaddition, metallic materials that are required to operate to address safety (e.g. thermal links on shearvalves) shall be resistant to atmospheric corrosion. Ferrous materials of the thickness specified in thefollowing items are acceptable for the preceding when uncoate

49、d:a) A casting having a wall thickness of not less than 1/4 inch (6.4 mm) if shown by productiontest to be free of leakage;b) Standard pipe and fittings conforming to the Standard for Welded and Seamless WroughtSteel Pipe, ANSI/ASME B36.10M; andc) Fabricated sheet steel parts having a minimum wall thickness of 0.093 inch (2.36 mm).5.1.2.2 A protective coating shall provide resistance against atmospheric corrosion to a degree not lessthan that provided by the protective coatings specified in 5.1.2.3.5.1.2.3 Cadmium plating shall no