ANSI UL 751-2012 UL Standard for Safety Vending Machines (Eighth Edition Reprint with Revisions Through and Including November 21 2014)《自动售货机用安全性标准》.pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 751 Vending MachinesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION

2、OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Vending Machines, UL 751 Eighth Edition, Dated July 20, 2012 Summary Of Topics The revisions dated November 21, 2014 were issued to incorporate the following changes in requirements and to reect the latest ANSI approval date: Revi

3、sion And Addition Of Requirements To Clarify The Differences Between Requirements That Apply To Devices That Control A Motor And Devices that Provide Motor Protection Revision And Addition Of Requirements To Clarify Controls Intended To Be Used As Operating Devices And Controls Intended To Be Used A

4、s Protective Devices Revision And Addition Of Requirements To Clarify Existing Requirements Applicable To Switches And Other Controlling Devices And To Provide For An Alternate Overload Endurance Test Addition Of Requirements To Address Vending Machines Intended To Be Installed Within Motor-Fuel Dis

5、pensing Facilities Addition Of New Temperature Measurement Requirements Intended To Obtain Consistent Temperature Measurements During Testing Revision To Gasket Requirements To Clarify That For Gaskets That Comply With The Standard For Gaskets And Seals, UL 157 To Be Acceptable, The Physical Properi

6、ties For Evaluation Shall Be Equivalent To Those In the Accelerated Aging Test Revisions To Marking Requirements To Clarify And Consolidate Permanency Of Marking Requirements Addition And Revision Of Capacitor Requirements To Allow For Compliance With Alternative Capacitor Requirements In The Standa

7、rd For Fixed Capacitors For Use In Electronic Equipment, UL 60384-14 Revisions To Stand-Alone Solar Photovoltaic Vending Machines Requirements For Machines Not Intended To Be Connected To An Electrical Production And Distribution Network Editorial Revisions That Include Updating References And Renum

8、bering Requirements Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. Changes in requirements are marked with a vertical line in the margin and are followed by an effective date note indicating the date of publicati

9、on or the date on which the changed requirement becomes effective. In the revisions dated November 21, 2014, pages 41 and 42 have been intentionally deleted from the Standard due to the deletion or relocation of text. The new and revised requirements are substantially in accordance with Proposal(s)

10、on this subject dated August 8, 2014. NOVEMBER 21, 2014 UL 751 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by

11、 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, including but not limited to, the implied warranties of merchantability or tness for any purpose. In no

12、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 or the inability to use this Standard, even if UL or an authorized UL representative has been advised o

13、f 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 of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss,

14、 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 purchasers computer system. The requirements in this Standard are now in effect, except for those paragraphs

15、, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the note following the affected item. The prior text for requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPE

16、RSEDED REQUIREMENTS notice. NOVEMBER 21, 2014 UL 751 tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JULY 20, 2012 (Title Page Reprinted: November 21, 2014) 1 UL 751 Standard for Vending Machines The First, Second, and Third editions were

17、 titled Standard for Safety for Vending and Amusement Machines. First Edition December, 1970 Second Edition April, 1974 Third Edition May, 1978 Fourth Edition September, 1985 Fifth Edition May, 1990 Sixth Edition June, 1995 Seventh Edition January, 2010 Eighth Edition July 20, 2012 This ANSI/UL Stan

18、dard for Safety consists of the Eighth Edition including revisions through November 21, 2014. The most recent designation of ANSI/UL 751 as an American National Standard (ANSI) occurred on November 21, 2014. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page,

19、 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 System (CSDS) at http:/. ULs Standards for Safety are copyrighte

20、d 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. COPYRIGHT 2014 UNDERWRITERS LABORATORIES INC. ANSI/UL 751-2014UL CO

21、PYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 21, 2014 VENDING MACHINES - UL 751 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 S

22、cope .6 2 Units of Measurement .6 3 Undated References 6 4 Terminology 6 5 Glossary .7 CONSTRUCTION 6 General 9 7 Nonmetallic Parts 10 8 Nonmetallic Materials .10 9 Nonmetallic Material Ignition Sources Separation 10 10 Nonmetallic Material Application and Location 12 11 Barriers 12 12 Frame and Enc

23、losure .12 13 Mechanical Assembly .17 14 Accessibility of Live Parts 18 15 Protection Against Corrosion .21 16 Supply Connections For Cord Connected Vending Machines .23 16.1 Cords and plugs .23 16.2 Strain relief 25 17 Supply Connections for Permanently Connected Vending Machines 25 17.1 General .2

24、5 17.2 Field-wiring compartments .25 17.3 Field-wiring terminals and leads 26 17.4 Equipment grounding .28 18 Current-Carrying Parts 28 19 Insulating Material 29 19.1 Electrical insulation .29 19.2 Thermal insulation 30 20 Internal Wiring 30 20.1 General .30 20.2 Wires .31 20.3 Routing .33 21 Splice

25、s and Connections 33 22 Separation of Circuits .34 23 Heating Elements .34 24 Motors .35 24.1 General .35 24.2 Overload protection .35 24.3 Protective electronic circuits .36 25 Overcurrent Protection 37 25.1 General .37 25.2 Motors and power transformers 39 26 Switches and Controllers 39 27 Capacit

26、ors 40B 28 Receptacles 40C 29 Batteries and Battery Chargers .40D NOVEMBER 21, 2014 VENDING MACHINES - UL 751 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 30 Connectors .40D 31 Cooking Equipment 40D 32 Electrical Cable, Conduit and Tubin

27、g 43 33 Electromagnetic Interference Filters .43 34 Fuseholders 43 35 Lighting Systems .44 35.1 General .44 35.2 Electric-discharge lighting systems .44 36 Optical Isolators and Semiconductor Devices 45 37 Outlet Boxes, Fittings and Cover Plates .46 38 Power Supplies .46 39 Solar Photovoltaic (PV) S

28、ystems .46 40 Terminal Blocks 47 41 Transformers .48 42 Wireways, Auxiliary Gutters and Associated Fittings 48 43 Secondary Circuits 48 44 Spacings 49 44.1 High-voltage circuits 49 44.2 Low-voltage circuits .51 44.3 Alternate spacings clearances and creepage distances .51 45 Grounding .52 46 Accesso

29、ries 53 47 Coin and Credit Mechanisms .55 PROTECTION AGAINST INJURY TO PERSONS 48 General 55 48.1 General .55 48.2 Switches and controllers 56 48.3 Lids 56 49 Stability Test .56 50 Risk of Injury to Servicemen 56A 51 Pressure Vessels and Parts Subject to Pressure 56B 52 Pressure-Relief Devices .59 P

30、ERFORMANCE 52A General 60 53 Leakage Current Test .60 54 Input Test 64 55 Temperature Test .64 55.1 General .64 55.2 Maximum normal load 67 56 Dielectric Voltage-Withstand Test .68 57 Abnormal Operation Test 69 58 Resistance to Moisture Tests .69 58.1 Humidity 69 58.2 Water spray .70 59 Thermostat T

31、ests .73 60 Bonding Connection Test 74 61 Metallic Coating Thickness Test 74 62 Overload of Motor Switches or Controllers Test 75 62A Overload and Endurance Test Switching Devices 76 NOVEMBER 21, 2014 VENDING MACHINES - UL 751 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTR

32、IBUTION WITHOUT PERMISSION FROM UL 63 Flexing of Internal Wiring .76A 64 Strain Relief Test 76A 65 Push-Back Strain-Relief Test .77 66 Glass Strength Test .77 66.1 Impact test 77 66.2 Mechanical pressure test 78 67 Glass Component Strength Test 78 68 Accelerated Aging Test of Gaskets .78 69 Permanen

33、ce of Marking Test .79 69.1 General .79 69.2 Oven-aging test 80 69.3 Immersion test .80 69.4 Standard-atmosphere test .80 70 Tests on Nonmetallic Materials .80 71 Fastener Strength Test 82 MANUFACTURING AND PRODUCTION TESTS 72 Dielectric Voltage-Withstand Test .83 73 Grounding Continuity Test .85 MA

34、RKING 74 General .85 74.1 Permanence .85 74.2 Identication .86 74.3 Installation instructions 88 74.4 Accessories 88A 74.5 Temperature markings 89 75 Cautionary .89 SUPPLEMENT SA - REQUIREMENTS FOR VENDING MACHINES INTENDED FOR INSTALLATION WITHIN MOTOR FUEL DISPENSING FACILITIES SA1 Scope SA1 SA2 D

35、enitions SA1 SA3 General SA1 SA4 Marking SA2 SA5 Installation and Operating Instructions SA2 APPENDIX A OPERATING AND PROTECTIVE ( SAFETY CRITICAL ) CONTROL FUNCTIONS (Normative) NOVEMBER 21, 2014 VENDING MACHINES - UL 751 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUT

36、ION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover self-contained, payment-accepting, vending machines that vend non-refrigerated products to be employed in accordance with the National Electrical Code, ANSI/NFPA 70. Vending machines as covered by this standard are inte

37、nded for indoor use only, except that they will be investigated for outdoor use or use in a protected location if so designated by the manufacturer. Vending machines may be battery operated. Vending machines may be battery operated and may be provided with a solar photovoltaic (PV) system. Refrigera

38、ted sections of vending machines that vend a non-refrigerated product are judged under the requirements for refrigerated vending machines. 1.1.1 These requirements also cover vending machines intended for installation within motor fuel dispensing facilities in accordance with Supplement SA, Requirem

39、ents for Vending Machines Intended for Installation within Motor Fuel Dispensing Facilities, and as dened by the Code for Motor Fuel Dispensing Facilities and Repair Garages, NFPA 30A. 1.1.1 added November 21, 2014 1.2 These requirements do not cover sound-recording and reproducing machines. 2 Units

40、 of Measurement 2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 3 Undated References 3.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the la

41、test edition of that code or standard. 4 Terminology 4.1 In the following text, a requirement that does not apply to all of the types of vending machines covered by this standard is identied by a specic reference in that requirement to the type or types of vending machine involved. Absence of such s

42、pecic reference or use of the term vending machine indicates that the requirement applies to all types of vending machines unless the context indicates otherwise. 4.2 Unless otherwise specied, values of voltage and current referred to are rms values. NOVEMBER 21, 2014 VENDING MACHINES - UL 751 6UL C

43、OPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5 Glossary 5.1 For the purpose of this standard the following denitions apply. 5.2 BARRIER A partition for isolating high-voltage electrical components, separating ignition sources from ammable mat

44、erials, isolating moving parts and protection of wiring. 5.3 CABINET The part of the equipment that provides physical protection to insulated wiring, enclosures, moving parts, motors, enclosed electrical parts, tubing or other parts that may cause injury to persons. 5.4 CELL The basic photovoltaic d

45、evice that generates electricity when exposed to sunlight. 5.5 CHARGE CONTROLLER Equipment that controls dc voltage or dc current, or both, used to charge a battery. 5.6 COMPONENT A device or fabricated part of the vending machine covered by the scope of a safety standard dedicated to that purpose.

46、If incorporated in a vending machine, a product that is otherwise typically eld installed (e.g. luminaire) is considered to be a component. Unless otherwise specied, materials that compose a device or fabricated part, such as aluminum or copper, are not considered components. Generally, components a

47、re incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under specic, limited conditions, such as certain temperatures not exceeding specied limits. 5.7 CONTROL, OPERATING A device or assembly of devices, the operation of which star

48、ts or regulates the end product during normal operation. For example, a thermostat, the failure of which a thermal cutout/limiter or another layer of protection would mitigate the risk of electric shock, is considered an operating control. Operating controls are also referred to as regulating contro

49、ls . Appendix A species control functions that are not considered to result in a risk of re, electric shock, or injury to persons. 5.7 revised November 21, 2014 5.8 CONTROL, PROTECTIVE A device or assembly of devices, the operation of which is intended to reduce the risk of re, electric shock, or injury to persons during normal and reasonably anticipated abnormal operation of the appliance. For example, a thermal cutout/limiter, or any other control/circuit relied upon for normal an