1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1310 Class 2 Power UnitsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCT
2、ION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Class 2 Power Units, UL 1310 Sixth Edition, Dated August 26, 2011 Summary of Topics This revision of ANSI/UL 1310 includes the following changes in requirements: Addition of requirements to address a ush device cover plate wit
3、h integral power supply with Class 2 output connectors with or without a night light 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 fo
4、llowed by an effective date note indicating the date of publication or the date on which the changed requirement becomes effective. The new requirements are substantially in accordance with Proposal(s) on this subject dated October 3, 2014. All rights reserved. No part of this publication may be rep
5、roduced, 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, including but not limited to, the im
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9、ents 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 following the affected item. The prior text for requirements that have been revised and that have a future effec
10、tive date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. DECEMBER 12, 2014 UL 1310 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL DECEMBER 12, 2014 UL 1310 tr2 No Text on This PageUL COPYRIGHTED MAT
11、ERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 26, 2011 (Title Page Reprinted: December 12, 2014) 1 UL 1310 Standard for Class 2 Power Units The rst and second editions were titled Standard for Direct Plug-In Transformer Units. First Edition May, 1981
12、 Second Edition September, 1986 Third Edition August, 1992 Fourth Edition July, 1994 Fifth Edition May, 2005 Sixth Edition August 26, 2011 This ANSI/UL Standard for Safety consists of the Sixth Edition including revisions through December 12, 2014. The most recent designation of ANSI/UL 1310 as an A
13、merican National Standard (ANSI) occurred on December 10, 2014. 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 Standard may be submitted to UL at any time. Proposals sh
14、ould 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 copyrights, ownerships,
15、and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2014 UNDERWRITERS LABORATORIES INC. ANSI/UL 1310-2014UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 26, 2011 CLASS 2 POWER UNITS - UL
16、1310 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .7 2 Components 8 3 Units of Measurement .9 4 Undated References 9 5 Glossary .9 6 Terminology .11 CONSTRUCTION 7 Mechanical Assembly 11
17、 8 Enclosure .18 9 Protection Against Corrosion 19 10 Switches .19 11 Protective Devices 20 12 Components .21 13 Coil Insulation 22 13.1 General .22 13.2 Insulation for transformers .22 14 Input Connections 25 14.1 Direct plug-in units .25 14.2 Cord-connected units .26 14.3 DC input units .27 15 Out
18、put Connections .27 15.1 General .27 15.2 Output wiring 28 15.3 Output terminals .28 15.4 Output connectors 29 15.5 Bushings 30 16 Accessibility of Live Parts 30 16.1 General 30 16.2 Live parts other than exposed wiring terminals .33 16.3 Exposed wiring terminals 35 17 Live Parts 35 18 Strain Relief
19、 36 19 Internal Wiring 36 20 Separation of Circuits .37 21 Insulating Materials .37 22 Printed-Wiring Boards .37 23 Grounding .38 23.1 General 38 23.2 Bonding conductor .39 24 Spacings 39 AUGUST 26, 2011 CLASS 2 POWER UNITS - UL 1310 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION O
20、R DISTRIBUTION WITHOUT PERMISSION FROM UL PERFORMANCE 25 General 42 26 Leakage Current Test .45 27 Leakage Current Test and Dielectric Voltage Withstand Test After Humidity Exposure 47 28 Maximum Output Voltage Test .48 29 Maximum Input Test 48 30 Output Current and Power Test 48 30.1 General .48 30
21、.2 Inherently limited .49 30.3 Not inherently limited .50 31 Calibration of Overcurrent Protection Devices Test 51 32 Full-Load Output Current Test 51 33 Normal Temperature Test 52 34 Dielectric Voltage Withstand Test .56 34.1 General .56 34.2 Induced potential .57 35 Endurance Test on Overcurrent-
22、and Overtemperature-Protective Devices .57 36 Overload and Endurance Tests on Switches and Controls .58 37 Overload Test on Secondary Switches 58 38 Operation Test .59 39 Abnormal Tests .59 39.1 General .59 39.2 Output loading .60 39.3 Output loading alternate method .61 39.4 Transformer burnout 62
23、39.5 Reverse polarity 62 39.6 Switch position .63 39.7 Component breakdown .63 39.8 Printed-wiring board abnormal operation test 63 39.9 Backfeed protection 64 40 Tests on Insulating Materials .65 41 Strain Relief Test .66 42 Push-Back Relief Test .66 43 Direct Plug-In Blade Secureness Test .67 44 D
24、irect Plug-In Security of Input Contacts Test 67 44.1 General .67 44.2 Removable, folding, and retractable blade units .67 45 Security of Output Connectors Test .68 46 Abuse Tests .69 46.1 General .69 46.2 Impact on direct plug-in units 69 46.3 Impact on cord connected units 71 46.4 Rod pressure on
25、direct plug-in units 71 46.5 Resistance to crushing on direct plug-in units 71 47 Bonding Conductor Test .72 MANUFACTURING AND PRODUCTION TESTS 48 Dielectric Voltage Withstand Test .72 49 Grounding Continuity Test .74 AUGUST 26, 2011 CLASS 2 POWER UNITS - UL 1310 4UL COPYRIGHTED MATERIAL NOT AUTHORI
26、ZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL RATING 50 General 74 MARKING 51 General 75 52 Cautionary and Warning Markings 76 53 Application of Labeling 78 INSTRUCTIONS 54 Instruction Manual 78 OUTDOOR USE 55 General 79 56 Enclosures .79 57 Protection Against Corrosion .80
27、 58 Gaskets .83 59 Supply Connections .83 60 Output Connections and Wiring .84 61 Spacings 84 62 Accessibility of Live Parts 85 63 Ground-Fault Circuit-Interrupters 85 64 Performance .86 64.1 General .86 64.2 Abuse tests 86 64.3 Rain test 86 64.4 Standing water immersion test .90 65 Markings .90 66
28、Instructions 91 PERMANENTLY-CONNECTED UNITS FOR CONNECTION TO A WIRING SYSTEM 67 General 92 68 Construction .93 69 Wiring Terminals and Leads .94 69A Strain Relief Test 94A 70 Markings .95 71 Installation Instructions 96 PERMANENTLY-CONNECTED UNITS FOR INSTALLATION IN AN OUTLET BOX 71A General .96A
29、71B Construction .96A 71C Polymeric Enclosures .96B 71D Spacings 96B 71E Performance .96B 71E.1 General 96B 71E.2 Assembly test .96C 71F Installation Instructions 96D 71G User Instructions .96D OCTOBER 11, 2013 CLASS 2 POWER UNITS - UL 1310 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODU
30、CTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 71H Markings 96E POWER UNITS FOR INSTALLATION IN AIR-HANDLING SPACES 72 General 96E 73 Marking 97 POWER UNITS SUPPLIED FROM INFORMATION TECHNOLOGY EQUIPMENT DATA PORTS 74 General 97 75 Glossary 97 76 Supply Connections .98 77 Enclosure 98 78 Performan
31、ce .98 78.1 General .98 78.2 Abnormal temperature test 99 78.3 Strain relief test 99 79 Markings .99 80 Instructions .100 FLUSH DEVICE COVER PLATES WITH INTEGRAL POWER SUPPLY 81 General 100 82 Construction 100 83 Polymeric Enclosures 101 84 Spacings .101 85 Congurations .102 86 Class 2 Output Power
32、Supply Testing 102 87 Assembly Test 103 88 Installation Instructions .104 89 Markings .104 APPENDIX A Standards for ComponentsA1 DECEMBER 12, 2014 CLASS 2 POWER UNITS - UL 1310 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1
33、Scope 1.1 These requirements cover indoor and outdoor use Class 2 power supplies and battery chargers. These units utilize an isolating transformer and may incorporate components to provide an alternating- or direct-current output. Each output provides Class 2 power levels in accordance with the Nat
34、ional Electrical Code, ANSI/NFPA 70. Maximum output voltage does not exceed 42.4 V peak for alternating current, 60 V for continuous direct current. These products are intended primarily to provide power to low voltage, electrically operated devices. These requirements apply to: a) Portable and semi
35、permanent mounted direct plug-in units provided with 15 A blade congurations for use on nominal 120 or 240 V alternating current branch circuits with a maximum potential of 150 V to ground; b) Cord- and plug-connected units provided with a 15 or 20 A attachment plug conguration for use on nominal 12
36、0 or 240 V alternating current branch circuits with a maximum potential of 150 V to ground; and c) Units permanently connected to the input supply for use on nominal 600 V or less alternating or direct current branch circuit. Direct plug-in and cord-connected units may also be provided with an integ
37、ral cigarette lighter connector assembly, or a direct current input jack for being powered from a vehicle battery adapter or from a data port associated with information technology equipment. These units utilize an isolating transformer and may incorporate components to provide an alternating- or di
38、rect-current output. Each output provides Class 2 power levels in accordance with the National Electrical Code, ANSI/NFPA 70. Maximum output voltage does not exceed 42.4 V peak for alternating current, 60 V for continuous direct current. These products are intended primarily to provide power to low
39、voltage, electrically operated devices. 1.2 These requirements cover direct plug-in and cord-connected products whose input power does not exceed 660 W under any possible condition of output loading. 1.3 These requirements do not cover the effect that a power unit may have on the equipment or system
40、 to which it is connected. 1.4 A product marked for a specic end-use involving additional considerations may be subject to additional requirements found in the applicable end-product standard. See 51.4. Examples include considerations related to: a) Mechanical risks such as those presented by tools;
41、 b) Build up of static charges such as those of radio equipment with external antennae connections; c) Special shock limits such as those for medical equipment; and d) Fire risks such as those posed by decorative lighting products. AUGUST 26, 2011 CLASS 2 POWER UNITS - UL 1310 7UL COPYRIGHTED MATERI
42、AL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 1.5 These requirements do not cover products intended to charge batteries for starter motors used to start engines. Products of this type are covered by the Standard for Battery Chargers for Charging Engine-Starter
43、 Batteries, UL 1236. 1.6 These requirements cover Class 2 products, as dened in this standard, intended for use with toys. Products of this type shall also comply with the Standard for Toy Transformers, UL 697. 1.7 These requirements do not cover products with outputs other than Class 2, nor battery
44、 chargers intended to charge batteries employed in wheel chairs or similar types of mobility aids. Products of this type are covered by the Standard for Power Units Other Than Class 2, UL 1012. 1.8 Products without a rectier may be covered by the Standard for Low Voltage Transformers Part 1: General
45、 Requirements, UL 5085-1, and the Standard for Low Voltage Transformers Part 3: Class 2 and Class 3 Transformers, UL 5085-3. 1.9 These requirements do not cover products powered solely by a dc source. Products of this type are covered by the Standard for Power Converters/Inverters and Power Converte
46、r/Inverter Systems for Land Vehicles and Marine Craft, UL 458, or by other requirements appropriate for the intended application. 1.10 These requirements do not cover products intended for supplying low voltage landscape lighting. Products of this type are covered by the Standard for Low Voltage Lan
47、dscape Lighting Systems, UL 1838. 2 Components 2.1 Except as indicated in 2.2, 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 the products covered by this standard. 2.2 A comp
48、onent 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. 2.3 A component shall be used in accordance with it
49、s rating established for the intended conditions of use. 2.4 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 those specic conditions. AUGUST 26, 2011 CLASS 2 POWER UNITS - UL 1310 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3 Units of Mea
