1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 541 Refrigerated Vending Machines STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUT
2、HORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Refrigerated Vending Machines, UL 541 Ninth Edition, Dated April 21, 2016 Summary Of Topics The revisions dated May 23, 2016 are being issued to incorporate editorial changes: Editorial revisions t
3、o update incorrect references in the Ninth edition 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 this
4、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 prots,
5、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 Stand
6、ard, 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 deviatio
7、n 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, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the note fo
8、llowing 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that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. MAY 23, 2016 UL 541 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DIST
9、RIBUTION WITHOUT PERMISSION FROM UL MAY 23, 2016 UL 541 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL April 21, 2016 (Title Page Reprinted: May 23, 2016) 1 UL 541 Standard for Refrigerated Vending Machines First Edi
10、tion August, 1958 Second Edition February, 1970 Third Edition March, 1974 Fourth Edition July, 1979 Fifth Edition February, 1989 Sixth Edition July, 1995 Seventh Edition February, 2010 Eighth Edition December, 2011 Ninth Edition April 21, 2016 This ANSI/UL Standard for Safety consists of the Ninth e
11、dition. The most recent designation of ANSI/UL 541 as an American National Standard (ANSI) occurred on April 21, 2016. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. Comments or proposals for revisions on any part of the St
12、andard 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 copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way
13、. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2016 UNDERWRITERS LABORATORIES INC. ANSI/UL 541-2016UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMIS
14、SION FROM UL APRIL 21, 2016 REFRIGERATED VENDING MACHINES - UL 541 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .8 2 Units of measurement .8 3 Terminology 8 4 Undated references .9 5 Glo
15、ssary .9 CONSTRUCTION 6 General .13 7 Nonmetallic Parts 15 8 Nonmetallic Materials .15 9 Nonmetallic Material Ignition Sources Separation 15 10 Nonmetallic Material Application and Location 17 11 Barriers 17 12 Accessories 17 13 Enclosures .18 13.1 General .18 13.2 Protection against corrosion .20 1
16、3.3 Electrical enclosures 22 13.4 Protection from risk of injury .27 14 Supply Connections for Permanently Connected Venders .28 14.1 General .28 14.2 Terminals .29 14.3 Leads .30 15 Supply Connections for Cord Connected Venders 30 16 Grounding and Bonding for Grounding 33 16.1 General .33 16.2 Cord
17、 connected venders 35 16.3 Permanently connected venders .35 17 Internal Wiring and Wiring Methods .36 17.1 General .36 17.2 Splices 39 17.3 Printed wiring boards .40 18 Separation of Circuits .40 ELECTRICAL COMPONENTS 19 Current-Carrying Parts 40 20 Insulating Material 41 21 Capacitors .41 22 Contr
18、ol Circuit Conductor Overcurrent Protection .42 22.1 Glossary 42 22.2 Tapped high-voltage control circuits 42 23 Short-Circuit Protection 44 24 Dispenser Mechanism .44 25 Coin or Credit Mechanism .44 26 Lighting Systems .45 26.1 General .45 APRIL 21, 2016 REFRIGERATED VENDING MACHINES - UL 541 3UL C
19、OPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 26.2 Electric-discharge lighting systems .45 27 Fuseholders 47 28 Motors .47 29 Motor Overload Protection .50 29.1 General .50 29.2 Protection of single-phase nonhermetic motors 50 29.3 Protection
20、of single-phase hermetic refrigerant motor-compressors .51 29.4 Protection of three-phase motors .52 29.5 Protective electronic circuits .52 30 Switches and Controllers 54 30.1 General .54 30.2 Relays 59 30.3 Remotely operated venders .59 31 Transformer Protection 61 31.1 High-voltage transformers .
21、61 31.2 Overcurrent protective devices .63 32 Valves and Solenoids .63 33 Batteries and Battery Chargers .63 34 Circuit Breakers, Fusing Resistors and Supplementary Protectors 64 35 Connectors 64 36 Electrical Cable, Conduit and Tubing 64 37 Electrical Insulation Systems .65 38 Electromagnetic Inter
22、ference Filters .65 39 Fuses .65 40 Heaters 66 41 Optical Isolators and Semiconductor Devices 66 42 Outlet Boxes .66 43 Power Supplies .66 44 Receptacles 67 45 Terminal Blocks 67 46 Wireways, Auxiliary Gutters and Associated Fittings 67 47 Solar Photovoltaic Systems 68 48 Information Technology Equi
23、pment .69 49 Across-The-Line Capacitors, Antenna-Coupling Components, Line-Bypass Components and Fixed Capacitors for Use in Electronic Equipment 69 SPACINGS 50 High-Voltage Circuits 70 51 Low-Voltage Circuits 72 52 Alternate Spacings Clearances and Creepage Distances 72 CARBONATION SYSTEM 53 Genera
24、l 73 PRODUCT LINES 54 General 73 55 Thermoelectric Refrigerated Venders 74 APRIL 21, 2016 REFRIGERATED VENDING MACHINES - UL 541 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL REFRIGERATION SYSTEM 56 Refrigerant .74 57 Refrigerant-Containi
25、ng Parts .75 57.1 General .75 57.2 Refrigerant tubing and ttings 76 58 Pressure Limiting Devices .77 59 Pressure Relief .78 59.1 General .78 59.2 Relief valves .78 59.3 Fusible plugs or rupture members 79 PERFORMANCE 60 General 79 60.1 Test voltages 79 60.2 Temperature measurements .80 60.3 Pressure
26、 measurements 81 61 Leakage Current Test .81 62 Input Test 83 63 Temperature and Pressure Tests .84 63.1 General .84 63.2 Automatic venders .87 64 Dielectric Voltage-Withstand Test .88 65 Heating Test .89 66 Insulation Resistance Test .90 67 Rain Test 90 68 Stability Test .93 69 Condenser Fan Motor
27、Failure Test 94 70 Antitheft Device Test 95 71 Water Failure Test 95 72 Start-To-Discharge Test .95 73 Rupture Member Test .96 74 Fusible Plug Test .96 75 Overload and Endurance Test Switching Devices .96 76 Burnout Tests Components 97 76.1 General .97 76.2 Electrically operated valves 98 76.3 Liqui
28、d-level system .98 77 Burnout Test High-Voltage Transformers .98 78 Abnormal Tests Thermoelectric Refrigerated Venders .99 78.1 General .99 78.2 Thermoelectric venders without cooling fans 100 78.3 Thermoelectric venders with cooling fans 100 78.4 Thermoelectric circuits powered by other than an ext
29、ra-low-voltage circuit .100 78.5 Dielectric-Voltage Withstand 5000 Volt Test 100 79 Overload Test High-Voltage Transformers 101 80 Overvoltage and Undervoltage Tests .101 81 Limited Short-Circuit Test .102 81.1 General 102 81.2 Motor Overload Protective Devices 104 81.3 Bonding conductors and connec
30、tions 104 81.4 Motor circuit conductors and connections 104 APRIL 21, 2016 REFRIGERATED VENDING MACHINES - UL 541 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 82 Protective Devices Maximum Continuous Current Test .104 83 Strength Tests 1
31、06 84 Glass Strength Test 108 84.1 Impact test .108 84.2 Mechanical pressure test .109 85 Glass Component Strength Test .109 86 Strain Relief Test 109 87 Push-Back Strain-Relief Test 110 88 Wiring Endurance Test .110 89 Accelerated Aging Tests on Gaskets and Adhesives .111 90 Metallic Coating Thickn
32、ess Test .112 91 Label Adhesion Tests 113 91.1 General 113 91.2 Oven-aging test .114 91.3 Immersion test 114 91.4 Standard atmosphere test 114 91.5 Unusual condition exposure test 115 92 Tests on Nonmetallic Materials 115 93 Fastener Strength Test .116 94 Refrigerant Identication Tests 117 94.1 Gene
33、ral 117 94.2 Infrared analysis 117 94.3 Gas chromatography analysis 117 95 Protective Electronic Circuit Tests .118 95.1 General 118 95.2 Fault conditions abnormal test 118 95.3 Electromagnetic compatibility (EMC) tests 120 95.4 Programmable component reduced supply voltage test 121 95.5 Fuse-link t
34、est .122 MANUFACTURING AND PRODUCTION TESTS 96 Pressure Tests 123 97 Production Fatigue Test .123 98 Grounding Continuity Tests .123 99 Dielectric Voltage-Withstand Tests .124 100 Annual Refrigerant Identication 126 MARKING 101 General .126 102 Protective Electronic Circuit Test .129 103 Electrical
35、Ratings .129 104 Coin and Credit Mechanism .135 105 Accessories 136 106 Installation Instructions 136 APRIL 21, 2016 REFRIGERATED VENDING MACHINES - UL 541 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SUPPLEMENT SA - REQUIREMENTS FOR REF
36、RIGERATED VENDERS EMPLOYING A FLAMMABLE REFRIGERANT IN THE REFRIGERATING SYSTEM SA1 Scope SA1 SA2 Denitions SA1 SA3 General SA2 SA4 Construction SA2 SA4.1 General SA2 SA4.2 Tubing and ttings SA3 SA5 Performance SA4 SA5.1 Leakage test .SA4 SA5.2 Ignition protection test .SA6 SA5.3 Temperature test SA
37、8 SA5.4 Scratch test SA8 SA6 Marking, Installation and Operating Instructions SA10 SA6.1 Marking .SA10 SA6.2 Installation and operating instructions .SA11 SUPPLEMENT SB - REQUIREMENTS FOR REFRIGERATED VENDING MACHINES INTENDED FOR INSTALLATION WITHIN MOTOR FUEL DISPENSING FACILITIES SB1 Scope SB1 SB
38、2 Denitions SB1 SB3 General SB1 SB4 Marking SB2 SB5 Installation and Operating Instructions SB2 APPENDIX A Operating and protective ( safety critical ) control functions(Normative) APRIL 21, 2016 REFRIGERATED VENDING MACHINES - UL 541 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION
39、OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover self-contained, refrigerated vending machines intended for connection to alternating-current circuits rated 600 volts or less in accordance with the National Electrical Code, ANSI/NFPA 70. Vending machines c
40、overed by these requirements: a) Incorporate refrigeration systems of the air-cooled or water-cooled type employing hermetic refrigerant motor-compressors; b) May be battery operated; c) May employ ammable refrigerant as dened in Requirements for Refrigerated Venders Employing a Flammable Refrigeran
41、t in the Refrigerating System, Supplement SA; d) May employ thermoelectric chilling systems. 1.2 These requirements also cover refrigerated vending machines intended for installation within motor fuel dispensing facilities in accordance with Supplement SB of this Standard: Requirements for Refrigera
42、ted 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. 1.3 These requirements do not cover vending machines incorporating universal motors rated at more than 250 volts, nor ve
43、nding machines which have a principal function other than storage and dispensing of refrigerated products; nor to vending stations, that is, freestanding stationary structures for outdoor use. 2 Units of measurement 2.1 Values stated without parentheses are the requirement. Values in parentheses are
44、 explanatory or approximate information. 3 Terminology 3.1 The term product, as used in this standard, refers to the refrigerated product as stored or dispensed by the vender. 3.2 The term vender, as used in this standard, and as dened in 5.40, refers to a refrigerated vending machine or part thereo
45、f covered by this standard unless specically noted otherwise. APRIL 21, 2016 REFRIGERATED VENDING MACHINES - UL 541 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 4 Undated references 4.1 Any undated reference to a code or standard appeari
46、ng in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard. 5 Glossary 5.1 For the purpose of this standard, the following denitions apply. 5.2 ACCESSORY A device or component intended for installation in or connection to a vender for the
47、 purpose of modifying or supplementing the functions of the vender. It is intended for installation by the serviceman or another equally qualied person in the eld. An accessory may be dependent upon the vender for electrical power, signaling, switching, or the like. 5.3 ADJUSTABLE SPEED DRIVE A comb
48、ination of power converter, inverter, motor, and motor-mounted auxiliary devices such as encoders, tachometers, thermal switches and detectors, air blowers, heaters, and vibration sensors. 5.4 ADJUSTABLE SPEED DRIVE SYSTEM An interconnected combination of equipment that provides a means of adjusting
49、 the speed of a mechanical load coupled to a motor. A drive system typically consists of an adjustable speed drive and auxiliary electrical apparatus. 5.5 AUTOMATIC VENDER A vender which delivers a product electromechanically by the use of motors or solenoids or both. 5.6 BARRIER A partition for isolating high-voltage electrical components, separating ignition sources from ammable materials, isolating moving parts and protection of wiring. 5.7 CABINET The part of the e
