1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 79A Power-Operated Pumps for Gasoline and Gasoline/Ethanol Blends with Nominal Ethanol Concentrations up to 85 Percent (E0 E85) STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR
2、FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Power-Operated Pumps for Gasoline and Gasoline/Ethanol Blends with Nominal Ethanol Concentrations up to
3、 85 Percent (E0 E85), UL 79A First Edition, Dated February 11, 2015 Summary of Topics This revision ANSI/UL 79A revises the Moist Ammonia-Air Stress Cracking Test. The revised requirements are substantially in accordance with Proposal(s) on this subject dated March 18, 2016. All rights reserved. No
4、part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, i
5、ncluding but not limited to, the implied warranties of merchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of prots, lost savings, loss of data, or any other damages arising out of the use of
6、or the inability to use this Standard, even if UL or an authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the form of the claim. Users of the electronic versions
7、of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purch
8、asers computer system. MAY 5, 2016 UL 79A tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 5, 2016 UL 79A tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM U
9、L February 11, 2015 (Title Page Reprinted: May 5, 2016) 1 UL 79A Standard for Power-Operated Pumps for Gasoline and Gasoline/Ethanol Blends with Nominal Ethanol Concentrations up to 85 Percent (E0 E85) Prior to the rst edition, the requirements for the products covered by this standard were included
10、 in the Outline of Investigation for Power-Operated Pumps for Gasoline and Gasoline/Ethanol Blends with Nominal Ethanol Concentrations up to 85 Percent (E0 - E85), UL 79A. First Edition February 11, 2015 This ANSI/UL Standard for Safety consists of the First Edition including revisions through May 5
11、, 2016. The most recent designation of ANSI/UL 79A as an American National Standard (ANSI) occurred on May 5, 2016. ANSI approval for a standard does not include the Cover Page, Transmittal Pages and Title Page. Comments or proposals for revisions on any part of the Standard may be submitted to UL a
12、t any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all
13、copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2016 UNDERWRITERS LABORATORIES INC. ANSI/UL 79A-2016UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 11, 2015
14、UL 79A 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .6 2 General 7 2.1 Components 7 2.2 Units of measurement .8 2.3 Undated references .8 3 Glossary .8 CONSTRUCTION 4 Assembly 9 5 Materi
15、als .10 5.1 Metallic materials 10 5.2 Nonmetallic materials 13 5.3 Casting impregnation materials 16 5.4 Internal parts .16 5.5 Blending Options 16 6 Bodies, Covers, and Heads .17 7 Drive-Shaft Seals 17 8 Diaphragms .18 9 Springs .18 10 Floats .18 11 Air Separators 19 12 Strainers .19 13 Outlet Pres
16、sure Regulation .19 14 Pressure Relief 20 15 Mounting and Base 21 16 Guards .21 17 Piping and Fittings .21 18 Hose Nozzle Valve, Hose, and Coupling .23 19 Conduit Seals .23 20 Electrical Equipment .24 21 Supply Connections .26 22 Current-Carrying Parts .28 23 Insulating Material .28 24 Internal Wiri
17、ng 30 24.1 Mechanical protection 30 24.2 Types of wire 30 24.3 Splices and connections 31 25 Separation of Circuits .33 26 Capacitors 33 27 Grounding 34 27.1 General .34 27.2 Grounding identication .35 28 Motors .36 28.1 Construction 36 28.2 Overload protection .36 28.3 Brushes and brush holders 37
18、29 Overload- or Thermal-Protective Devices 38 FEBRUARY 11, 2015 UL 79A 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 30 Switches and Controls .38 31 Spacings 39 PROTECTION OF PERSONNEL 32 General 41 33 Sharp Edges .41 34 Enclosures and Gu
19、ards 42 35 Materials .44 36 Surface Temperatures .44 37 Locking Mechanism .45 38 Control Application 45 39 Secondary Circuits 45 39.1 General .45 39.2 Protection of wiring .46 PERFORMANCE 40 General 46 41 Long Term Exposure Test .47 41.1 General .47 41.2 Samples 48 41.3 Method .48 41.4 Results .49 4
20、2 High Pressure Leakage Test .49 43 Endurance Test Pumps 51 44 Hydrostatic Strength Test 51 45 Retention Test for Screws and Bolts 52 46 Deformation Test .52 47 Leakage of Wire Seal Test .53 48 Endurance Test for Air Separators 54 49 Blocked Outlet Test .54 50 Pressure Relief Test 54 51 Float Buoyan
21、cy Test 54 52 Dimensional Stability of Floats Test .55 53 Weight Change of Floats Test 55 54 Float Crushing Test .56 55 Moist Ammonia-Air Stress Cracking Test .56A 56 Tests on Sealing Compounds .56A 57 Metallic Coating Thickness Test 58 58 Starting Current Test 60 59 Input Test 60 60 Temperature Tes
22、t .60 60.1 General .60 60.2 Maximum normal load 64 61 Dielectric Voltage-Withstand Test .64 62 Grounding Continuity Test .65 63 Rain Test 66 64 Submersion Test .69 65 Conductor Secureness Test 69 66 Insulation Resistance Test .69 67 Leakage Current Test .72 MAY 5, 2016 UL 79A 4UL COPYRIGHTED MATERIA
23、L NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 68 Pneumatic Parts Pressure Distortion Test 74 MAY 5, 2016 UL 79A 4AUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 5, 2016 UL 79A 4B No Text on This Pa
24、geUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 69 Pneumatic Parts Endurance 75 70 Pneumatic Parts Impact Test 75 71 Blending Cycling Test 75 MANUFACTURING AND PRODUCTION 72 General 76 INSTRUCTIONS 73 General 78 RATING 74 Details .78 MARKI
25、NG 75 General 79 76 Cautionary Markings .81 77 Permanence of Marking 82 SUPPLEMENT SA - Test Fluids SA.1 Details .SA1 FEBRUARY 11, 2015 UL 79A 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover
26、 products described in 1.2 when used with one or more of the fuels described in 1.3. 1.2 These requirements cover electrically-, hydraulically-, or pneumatically-driven power-operated pumps for use with petroleum products in the following applications: a) Self-contained dispensing devices and submer
27、ged pumps used in storage tanks that provide the fuel to remote control dispensing devices. They are intended for operation at discharge pressures of 50 pounds per square inch (psig) (345 kPa), or the marked maximum discharge pressure rating, when less, with the ambient and liquid temperature within
28、 the range of minus 29C (minus 20F) 52C (125F). b) Dispensing systems to transfer the fuel from a tank or container to a vehicle or another container. They are intended for operation at the marked maximum discharge pressure, or less, with the ambient and liquid temperature within the range of minus
29、29C (minus 20F) 52C (125F). c) Vapor recovery applications for dispensing devices. They are intended to operate under a vacuum at the inlet and a maximum discharge pressure of 50 psig (345 kPa), or marked discharge pressure, whichever is less. 1.3 Pumps covered by these requirements are intended for
30、 use with one or more of the following: a) Gasoline formulated in accordance with the Standard Specication for Automotive Spark- Ignition Fuel, ASTM D4814; b) Gasoline/ethanol blends with nominal ethanol concentrations up to 25 percent ethanol (E25), consisting of gasoline formulated in accordance w
31、ith the Standard Specication for Automotive Spark-Ignition Fuel, ASTM D4814, when blended with denatured fuel ethanol formulated to be consistent with the Standard Specication for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel, ASTM D4806; or c) G
32、asoline/ethanol blends with nominal ethanol concentrations above 25 percent formulated in accordance with the Standard Specications in item (b), or formulated in accordance with the Standard Specication for Ethanol Fuel Blends for Flexible-Fuel Automotive Spark-Ignition Engines, ASTM D5798, as appli
33、cable. 1.4 Requirements for the installation and use of these products are included in the Flammable and Combustible Liquids Code, ANSI/NFPA 30; the Motor Fuel Dispensing Facilities and Repair Garages Code, ANSI/NFPA 30A; and the National Electrical Code, ANSI/NFPA 70. 1.5 These requirements do not
34、cover: a) Oil burner pumps, which are evaluated under the Standard for Pumps for Oil-Burning Appliances, UL 343. b) Pumps for engine-powered automotive equipment. FEBRUARY 11, 2015 UL 79A 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL c) P
35、umps for marine use which are evaluated under the Standard for Mechanically and Electrically Operated Fuel Pumps for Marine Use, UL 1130. d) Pumps for use in chemical, petrochemical, or petroleum processing plants; utility power plants; petroleum production facilities; pipeline pump stations; pipeli
36、ne or marine terminals; or bulk plant distribution and related facilities. e) Pumps used in mobile applications, such as on tank trucks, portable tanks, or portable containers mounted on vehicles. f) Pumps rated more than 600 volts. g) Pump assemblies also provided with a ammable liquid meter or ele
37、ctrically-operated shutoff valve, which are evaluated in accordance with the Standard for Power-Operated Dispensing Devices for Gasoline and Gasoline/Ethanol Bends with Nominal Ethanol Concentrations up to 85 Percent (E0 E85), UL 87A. h) Pumps intended for use with diesel fuel, biodiesel fuel, diese
38、l/biodiesel blends, kerosene, or fuel oil, which are evaluated in accordance with the Standard for Pumps for Diesel Fuel, Biodiesel Fuel, Diesel/Biodiesel Blends with Nominal Biodiesel Concentrations up to 20 Percent (B20), Kerosene, and Fuel, Oil, UL 79B. 1.6 The pump assembly may be constructed su
39、ch that it provides for the installation and use of a ammable liquid hose and hose nozzle valve. 2 General 2.1 Components 2.1.1 Except as indicated in 2.1.2, a component of a product covered by this standard shall comply with the requirements for that component. 2.1.2 A component is not required to
40、comply with a specic requirement that: a) Involves a feature or characteristic not required in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 2.1.3 A component shall be used in accordance with its rating established fo
41、r the intended conditions of use. 2.1.4 Specic components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specied limits, and shall be used only under tho
42、se specic conditions. FEBRUARY 11, 2015 UL 79A 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.1.5 Electrical components, including motors and wiring, when incorporated by a manufacturer in an assembly with a pump, and including the means
43、 provided in the pump assembly for electrical connections, shall comply with the requirements for equipment for use in hazardous locations, Class I, Group D, National Electrical Code, ANSI/NFPA 70, Articles 500 and 501. 2.2 Units of measurement 2.2.1 Values stated without parentheses are the require
44、ment. Values in parentheses are explanatory or approximate information. 2.3 Undated references 2.3.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code our standard. 3 Glossary 3.1 For the pu
45、rpose of this standard, the following denitions apply. 3.2 BLENDING OPTION Dispensing devices may be provided with an option that blends two specic fuels into one fuel to be dispensed. This blending occurs at the dispenser level and can be in two forms: a) Fixed blending Blending at the dispenser le
46、vel that blends two specic fuels into one fuel to be dispensed, and that fuel to be dispensed is xed. For example, xed blending includes blend options where gasoline and denatured fuel ethanol can be blended to achieve E85, which is the actual dispensed fuel. b) Variable blending Blending at the dis
47、penser level that blends two specic fuels into the fuel to be dispensed, but the fuel to be dispensed can be any of a number of previously set points. For example, variable blending includes blend options where gasoline and E85 can be blended to achieve E40, E60, and E85 as the actual dispensed fuel
48、. 3.3 GASOLINE/ETHANOL BLENDS Blended fuel composed of a gasoline component and an ethanol component. The numerical value corresponding to the ethanol component percentage determines the blend rating (such as E85 for 85% ethanol, 15% gasoline). 3.4 HAZARDOUS LOCATIONS Locations in which ammable gase
49、s or vapors are or may be present in the air in quantities sufficient to produce explosive or ignitable mixture. 3.5 INTRINSICALLY SAFE CIRCUIT A circuit incapable of releasing sufficient electrical energy under normal or abnormal conditions to cause ignition of a specic hazardous atmospheric mixture. Abnormal conditions include unintentional damage to any part of the equipment or wiring, insulation or other malfunction of electrical components, application of overvoltage, adj
