1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 79B Power-Operated Pumps for Diesel Fuel, Biodiesel Fuel, Diesel/Biodiesel Blends with Nominal Biodiesel Concentrations up to 20 Percent (B20), Kerosene, and Fuel Oil STANDARD FOR SAFETYUL C
2、OPYRIGHTED MATERIAL NOT AUTHORIZED FOR 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 Diesel Fuel, Biodiesel Fuel, Diesel/Bio
3、diesel Blends with Nominal Biodiesel Concentrations up to 20 Percent (B20), Kerosene, and Fuel Oil, UL 79B First Edition, Dated February 11, 2015 Summary of Topics This revision of ANSI/UL 79B revises the Moist Ammonia-Air Stress Cracking Test. The revised requirements are substantially in accordanc
4、e 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, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides
5、 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 any special, incidental, consequential, indirect or similar damages, including loss of p
6、rots, 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 damage. In no event shall ULs liability for any damage ever exceed the price paid for this
7、 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, claim, or judgment (including reasonable attorneys fees) resulting from any error or de
8、viation introduced while purchaser is storing an electronic Standard on the purchasers computer system. MAY 5, 2016 UL 79B tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 5, 2016 UL 79B tr2 No Text on This PageUL COPYRIGHTED MATERIAL
9、NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL February 11, 2015 (Title Page Reprinted: May 5, 2016) 1 UL 79B Standard for Power-Operated Pumps for Diesel Fuel, Biodiesel Fuel, Diesel/Biodiesel Blends with Nominal Biodiesel Concentrations up to 20 Percent (B20), K
10、erosene, and Fuel Oil Prior to the rst edition, the requirements for the products covered by this standard were included in the Outline of Investigation for Power-Operated Pumps for Diesel Fuel, Biodiesel Fuel, Diesel/Biodiesel Blends with Nominal Biodiesel Concentrations up to 20 Percent (B20), Ker
11、osene, and Fuel Oil, UL 79B. First Edition February 11, 2015 This ANSI/UL Standard for Safety consists of the First Edition including revisions through May 5, 2016. The most recent designation of ANSI/UL 79B as an American National Standard (ANSI) occurred on May 5, 2016. ANSI approval for a standar
12、d does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. 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 Request in ULs On-Line Collaborative Standards Development
13、 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 Standards shall remain the sole and exclusive property of UL. CO
14、PYRIGHT 2016 UNDERWRITERS LABORATORIES INC. ANSI/UL 79B-2016UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 11, 2015 UL 79B 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOU
15、T 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 .10 5.1 Metallic materials 10 5.2 Nonmetallic materials 11 5.3 Materials system level 14 5.4 Casting impregnati
16、on materials 14 5.5 Internal parts .14 6 Bodies, Covers, and Heads .14 7 Drive-Shaft Seals 15 8 Diaphragms .15 9 Springs .15 10 Floats .16 11 Air Separators 16 12 Strainers .16 13 Outlet Pressure Regulation .17 14 Pressure Relief 18 15 Mounting and Base 18 16 Guards .18 17 Piping and Fittings .19 18
17、 Hose Nozzle Valve, Hose, and Coupling .20 19 Conduit Seals .21 20 Electrical Equipment .22 21 Supply Connections .24 22 Current-Carrying Parts .26 23 Insulating Material .26 24 Internal Wiring 28 24.1 Mechanical protection 28 24.2 Types of wire 28 24.3 Splices and connections 29 25 Separation of Ci
18、rcuits .31 26 Capacitors 31 27 Grounding 32 27.1 General .32 27.2 Grounding identication .33 28 Motors .34 28.1 Construction 34 28.2 Overload protection .34 28.3 Brushes and brush holders 35 29 Overload- or Thermal-Protective Devices 36 FEBRUARY 11, 2015 UL 79B 3UL COPYRIGHTED MATERIAL NOT AUTHORIZE
19、D FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 30 Switches and Controls .36 31 Spacings 37 PROTECTION OF PERSONNEL 32 General 39 33 Sharp Edges .39 34 Enclosures and Guards 40 35 Materials .43 36 Surface Temperatures .43 37 Locking Mechanism .44 38 Control Application 44 39 Se
20、condary Circuits 44 39.1 General .44 39.2 Protection of wiring .45 PERFORMANCE 40 General 45 41 Long Term Exposure Test .46 41.1 General .46 41.2 Samples 47 41.3 Method .47 41.4 Results .48 42 High Pressure Leakage Test .48 43 Endurance Test Pumps 50 44 Hydrostatic Strength Test 50 45 Retention Test
21、 for Screws and Bolts 51 46 Deformation Test .51 47 Leakage of Wire Seal Test .52 48 Endurance Test for Air Separators 53 49 Blocked Outlet Test .53 50 Pressure Relief Test 53 51 Float Buoyancy Test 53 52 Dimensional Stability of Floats Test .54 53 Weight Change of Floats Test 54 54 Float Crushing T
22、est .55 55 Moist Ammonia-Air Stress Cracking Test 56 56 Tests on Sealing Compounds 56 57 Metallic Coating Thickness Test 57 58 Starting Current Test 59 59 Input Test 59 60 Temperature Test .59 60.1 General .59 60.2 Maximum normal load 63 61 Dielectric Voltage-Withstand Test .63 62 Grounding Continui
23、ty Test .64 63 Rain Test 65 64 Submersion Test .68 65 Conductor Secureness Test 68 66 Insulation Resistance Test .68 67 Leakage Current Test .71 MAY 5, 2016 UL 79B 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 68 Pneumatic Parts Pressure
24、Distortion Test 73 MAY 5, 2016 UL 79B 4AUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 5, 2016 UL 79B 4B No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 69 P
25、neumatic Parts Endurance 74 70 Pneumatic Parts Impact Test 74 MANUFACTURING AND PRODUCTION 71 General 74 INSTRUCTIONS 72 General 76 RATING 73 Details .77 MARKING 74 General 77 75 Cautionary Markings .79 76 Permanence of Marking 80 SUPPLEMENT SA - Test Fluids SA.1 Representative aggressive combustibl
26、e test fuel mixtures .SA1 FEBRUARY 11, 2015 UL 79B 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 when used with one or more of the fuels described in 1.3. 1.2 The
27、se 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 submerged pumps used in storage tanks that provide the fuel to remote control dispensing devices.
28、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 the range of minus 29C (minus 20F) 52C (125F). b) Dispensing systems to transfer the fuel f
29、rom 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 29C (minus 20F) 52C (125F). c) Vapor recovery applications for dispensing devices. They are
30、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 use with one or more of the following: a) Diesel Fuel and diesel/biodiesel blends with nomi
31、nal biodiesel concentrations up to 5 percent (B0 B5) formulated in accordance with the Standard Specication for Diesel Fuel Oils, ASTM D975. b) Diesel/biodiesel blends with nominal biodiesel concentrations from 5 percent up to 20 percent (B6 B20) formulated in accordance with the Standard Specicatio
32、n for Diesel Fuel Oil, Biodiesel Blends (B6 B20), ASTM D7467. c) Biodiesel (B99.9/B100) formulated in accordance with the Standard Specication for Biodiesel Fuel Blend Stock (B100) for Middle Distillate Fuels, ASTM D6751. d) Kerosene formulated in accordance with the Standard Specication for Kerosin
33、e, ANSI/ ASTM D3699. e) Fuel Oil (Heating Oil) formulated in accordance with the Standard Specication for Fuel Oils, ASTM D396. 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 Faciliti
34、es and Repair Garages Code, ANSI/NFPA 30A; and the National Electrical Code, ANSI/NFPA 70. FEBRUARY 11, 2015 UL 79B 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 1.5 These requirements do not cover: a) Oil burner pumps, which are evaluate
35、d under the Standard for Pumps for Oil-Burning Appliances, UL 343. b) Pumps for engine-powered automotive equipment. c) Pumps 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, petrochemic
36、al, or petroleum processing plants; utility power plants; petroleum production facilities; pipeline pump stations; pipeline 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 mou
37、nted on vehicles. f) Pumps rated more than 600 volts. g) Pump assemblies also provided with a ammable liquid meter or electrically-operated shutoff valve, which are evaluated in accordance with the Standard for Power-Operated Dispensing Devices for Gasoline and Gasoline/Ethanol Blends with Nominal E
38、thanol Concentrations up to 85 Percent (E0 E85), UL 87A. h) Pumps intended for use with gasoline and gasoline/ethanol blends which are evaluated in accordance with the Standard for Power Operated Pumps for Gasoline and Gasoline/Ethanol Blends with Nominal Ethanol Concentrations up to 85 Percent (E0
39、E85), UL 79A. 1.6 The pump assembly may be constructed such that it provides for the installation and use of a 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 compon
40、ent. 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 . 2.1.3 A component shall be used in accorda
41、nce with its rating established for the intended conditions of use. FEBRUARY 11, 2015 UL 79B 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.1.4 Specic components are incomplete in construction features or restricted in performance capabi
42、lities. Such components are intended for use only under limited conditions, such as certain temperatures 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 wi
43、th a pump, and including the means 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 w
44、ithout 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 this shall be interpreted as referring to the latest edition of that code or standard. 3
45、 Glossary 3.1 For the purpose of this standard, the following denitions apply. 3.2 DIESEL/BIODIESEL BLENDS Blended fuels composed of a diesel component and a biodiesel component. The numerical value corresponding to the biodiesel component determines the blend rating (such as B20 for 20% biodiesel a
46、nd 80% diesel). 3.3 HAZARDOUS LOCATIONS Locations in which ammable gases or vapors are or may be present in the air in quantities sufficient to produce explosive or ignitable mixture. 3.4 INTRINSICALLY SAFE CIRCUIT A circuit incapable of releasing sufficient electrical energy under normal or abnorma
47、l 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, adjustment and maintenance operations, and other si
48、milar conditions. 3.5 LINE-VOLTAGE CIRCUIT A circuit involving a potential of not more than 600 volts and having circuit characteristics in excess of those of a low-voltage circuit. 3.6 LOW-VOLTAGE CIRCUIT A circuit involving a peak open-circuit potential of not more than 42.2 volts supplied by: a)
49、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 performance requirements for Class 2 transformers in accordance with the Standard for 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. FEBRUARY 11, 2015 UL 79B 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCT
