1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 79 Power-Operated Pumps for Petroleum Dispensing Products STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPY
2、RIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Power-Operated Pumps for Petroleum Dispensing Products, UL 79 Tenth Edition, Dated April 29, 2016 Summary of Topics This new edition of ANSI/UL 79 is being issued to revise
3、the Moist Ammonia-Air Stress Cracking Test. The revisions are substantially in accordance with Proposal(s) on this subject dated March 18, 2016. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mech
4、anical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability or tness for any purpose. In no event will UL be liable for
5、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 or the inability to use this Standard, even if UL or an authorized UL representative has been advised of the possibility of such da
6、mage. 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 of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage,
7、 claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. APRIL 29, 2016 UL 79 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITH
8、OUT PERMISSION FROM UL APRIL 29, 2016 UL 79 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 29, 2016 1 UL 79 Standard for Power-Operated Pumps for Petroleum Dispensing Products The rst and second editions were t
9、itled Power-Operated Pumps and Discharge Device Accessory Pumps. The third edition was titled Power-Operated Pumps for Flammable Liquids. The fourth edition was titled Power-Operated Pumps for Petroleum Products. First Edition July, 1929 Second Edition June, 1938 Third Edition April, 1967 Fourth Edi
10、tion April, 1973 Fifth Edition July, 1975 Sixth Edition February, 1981 Seventh Edition December, 1992 Eighth Edition December, 1996 Ninth Edition June, 2005 Tenth Edition April 29, 2016 This ANSI/UL Standard for Safety consists of the Tenth Edition. The most recent designation of ANSI/UL 79 as an Am
11、erican National Standard (ANSI) occurred on April 29, 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 at any time. Proposals should be submitted via a Proposal
12、 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 copyrights, ownerships, and rights regarding those Stand
13、ards shall remain the sole and exclusive property of UL. COPYRIGHT 2016 UNDERWRITERS LABORATORIES INC. ANSI/UL 79-2016UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 29, 2016 POWER-OPERATED PUMPS FOR PETROLEUM DISPENSING PRODUCTS - UL
14、79 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 Materials
15、 .9 6 Bodies, Covers, and Heads .12 7 Drive-Shaft Seals 13 8 Diaphragms .13 9 Springs .13 10 Floats .13 11 Air Separators 14 12 Strainers .14 13 Outlet Pressure Regulation 15 14 Pressure Relief .15 15 Mounting and Base .16 16 Guards 16 17 Piping and Fittings 16 18 Hose Nozzle Valve, Hose, and Coupli
16、ng .18 19 Conduit Seals 18 20 Electrical Equipment 19 21 Supply Connections .21 22 Current-Carrying Parts 23 23 Insulating Material 23 24 Internal Wiring 25 24.1 Mechanical protection .25 24.2 Types of wire 25 24.3 Splices and connections 26 25 Separation of Circuits .28 26 Capacitors .28 27 Groundi
17、ng .29 27.1 General .29 27.2 Grounding identication .30 28 Motors .31 28.1 Construction .31 28.2 Overload protection .31 28.3 Brushes and brush holders 32 29 Overload- or Thermal-Protective Devices 33 30 Switches and Controls .33 31 Spacings 34 32 General 36 33 Sharp Edges .36 34 Enclosures and Guar
18、ds 37 APRIL 29, 2016 POWER-OPERATED PUMPS FOR PETROLEUM DISPENSING PRODUCTS - UL 79 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 35 Materials .40 36 Surface Temperatures .40 37 Locking Mechanism .41 38 Control Application 41 39 Secondary
19、 Circuits 41 39.1 General .41 39.2 Protection of wiring .42 PERFORMANCE 40 General 42 41 Retention Test for Screws and Bolts 43 42 Deformation Test .43 43 Leakage Test 44 44 Leakage of Wire Seal Test .46 45 Endurance Test 46 46 Endurance Test for Air Separators 47 47 Blocked Outlet Test .47 48 Press
20、ure Relief Test 47 49 Hydrostatic Strength Test 47 50 Float Buoyancy Test 48 51 Dimensional Stability Test .48 52 Weight Change Test 49 53 Float Crushing Test .50 54 Moist Ammonia-Air Stress Cracking Test 51 55 Tests on Sealing Compounds 51 56 Metallic Coating Thickness Test 52 57 Coating Liquid Res
21、istance Test .54 58 Starting Current Test 54 59 Input Test 54 60 Temperature Test .55 60.1 General .55 60.2 Maximum normal load 59 61 Dielectric Voltage-Withstand Test .59 62 Grounding Continuity Test .60 63 Rain Test 60 64 Submersion Test .63 65 Conductor Secureness Test 63 66 Insulation Resistance
22、 Test .63 67 Leakage Current Test .66 68 Pneumatic Parts Pressure Distortion Test 68 69 Pneumatic Parts Endurance 69 70 Pneumatic Parts Impact Test .69 MANUFACTURING AND PRODUCTION TESTS 71 General 69 INSTRUCTIONS 72 General 71 RATING APRIL 29, 2016 POWER-OPERATED PUMPS FOR PETROLEUM DISPENSING PROD
23、UCTS - UL 79 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 73 Details .72 MARKING 74 General 72 75 Cautionary Markings 74 76 Permanence of Marking .75 APPENDIX A Standards for ComponentsA1 APRIL 29, 2016 POWER-OPERATED PUMPS FOR PETROLEUM
24、 DISPENSING PRODUCTS - UL 79 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover products described in 1.2. Requirements for the installation and use of these products are included in the Flamma
25、ble and Combustible Liquids Code, NFPA 30; the Automotive and Marine Service Station Code, NFPA 30A; and the National Electrical Code, NFPA 70. 1.2 These requirements cover electrically-, hydraulically-, or pneumatically-driven power-operated pumps for use with petroleum products in the following ap
26、plications: a) Self-contained ammable liquid dispensing devices and submerged pumps used in storage tanks that provide the petroleum product to remote control ammable liquid dispensing devices. They are intended for operation at discharge pressures of 50 pounds per square inch (psig) (345 kPa), or t
27、he marked maximum discharge pressure rating, when less, with the ambient and liquid temperature within the range of minus 20F (minus 29C) 125F (52C). b) Flammable liquid dispensing systems to transfer the petroleum product from a tank or container to a vehicle or another container. They are intended
28、 for operation at the marked maximum discharge pressure, or less, with the ambient and liquid temperature within the range of minus 20F (minus 29C) 125F (52C). c) Vapor recovery applications for ammable liquid dispensing devices. They are intended to operate under a vacuum at the inlet and a maximum
29、 discharge pressure of 50 psig (345 kPa), or marked discharge pressure, whichever is less. 1.3 These requirements do not 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. c) Pumps for mar
30、ine 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; pipeline or marine
31、 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 electrically-op
32、erated shutoff valve, which are evaluated in accordance with the Standard for Power-Operated Dispensing Devices for Petroleum Products, UL 87. APRIL 29, 2016 POWER-OPERATED PUMPS FOR PETROLEUM DISPENSING PRODUCTS - UL 79 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTIO
33、N WITHOUT PERMISSION FROM UL 1.4 The pump assembly is not prohibited from being constructed such that it provides for the installation and use of a ammable liquid hose and hose nozzle valve. 1.5 Petroleum Products, as used herein, means gasoline, gasoline/alcohol blends up to 15% Ethanol or 15% Meth
34、anol, diesel fuel, fuel oil, lubricating oil, and the vapors of these fuels. Other petroleum products are not prohibited from being used in the pump when the materials comply with the requirements in Materials, Section 5, when the pump is evaluated using the additional liquids, and the additional pe
35、troleum products are marked on the pump as indicated in 74.1(f). 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. See Appendix A for a list of standards covering components used in th
36、e products covered by this standard. 2.1.2 A component is not required to 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.
37、1.3 A component shall be used in accordance with its rating established for 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 t
38、emperatures not exceeding specied limits, and shall be used only under those specic conditions. 2.1.5 Electrical components, including motors and wiring, when incorporated by a manufacturer in an assembly with a pump, and including the means provided in the pump assembly for electrical connections,
39、shall comply with the requirements for equipment for use in hazardous locations, Class I, Group D, National Electrical Code, NFPA 70, Articles 500 and 501. APRIL 29, 2016 POWER-OPERATED PUMPS FOR PETROLEUM DISPENSING PRODUCTS - UL 79 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION O
40、R DISTRIBUTION WITHOUT PERMISSION FROM UL 2.2 Units of measurement 2.2.1 Values stated without parentheses are the requirement. 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
41、this standard shall be interpreted as referring to the latest edition of that code or standard. 3 Glossary 3.1 For the purposes of these requirements, the following denitions apply. 3.2 HAZARDOUS LOCATIONS Locations in which ammable gases or vapors are or may be present in the air in quantities suff
42、icient to produce explosive or ignitable mixture. 3.3 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
43、 of the equipment or wiring, insulation or other malfunction of electrical components, application of overvoltage, adjustment and maintenance operations, and other similar conditions. 3.4 LINE-VOLTAGE CIRCUIT A circuit involving a potential of not more than 600 volts and having circuit characteristi
44、cs in excess of those of a low-voltage circuit. 3.5 LOW-VOLTAGE CIRCUIT A circuit involving a peak open-circuit potential of not more than 42.2 volts supplied by: a) A battery; b) A Class 2 transformer; or c) A combination of a transformer and a xed impedance that, as a unit, complies with the perfo
45、rmance requirements for Class 2 transformers in accordance with the Standard for Low Voltage Transformers Part 1: General Requirements, UL 5085-1 and the Standard for Low Voltage Transformers Part 3: Class 2 and Class 3 Transformers, UL 5085-3. A circuit derived from a line-voltage circuit by connec
46、ting a resistance in series with the supply circuit as a means of limiting the voltage and current is not a low-voltage circuit. 3.6 RAINPROOF ENCLOSURE An enclosure that prevents the entrance of a beating rain to the extent that there is no wetting of electrical parts and no water enters a compartm
47、ent housing eld installed wiring. APRIL 29, 2016 POWER-OPERATED PUMPS FOR PETROLEUM DISPENSING PRODUCTS - UL 79 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONSTRUCTION 4 Assembly 4.1 The construction of a pump shall be such that parts
48、can be assembled in the intended manner after being 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 anges, gaskets, bolts, or other special ttings or parts for making connections, such parts shall be fur
49、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 the abuses to which it is subjected without resulting in the risk of re, electric shock, or injury to persons due to total or partial collapse with: a) Resulting reduction of spacings; b) Loosening or displacement of parts; or c) Other defects. 4.4 A pump-motor assembly to be shipped from the manufacturer disassembled sh
