UL 1310-2018 UL Standard for Safety Class 2 Power Units (Seventh Edition).pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1310 Class 2 Power Units STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED F

2、OR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Class 2 Power Units, UL 1310 Seventh Edition, Dated March 9, 2018 Summary of Topics This new edition of ANSI/UL 1310 is being issued to address editorial maintenance, which is considered to be non-substanti

3、ve and not subject to ULs STP process. 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 Standard as

4、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, lost savings

5、, 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 Standard, regardl

6、ess 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 deviation introduced

7、 while purchaser is storing an electronic Standard on the purchasers computer system. MARCH 9, 2018 UL 1310 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 9, 2018 UL 1310 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZ

8、ED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 9, 2018 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 Second Edition September 1986 Third Edition August 1992 Fourth

9、 Edition July 1994 Fifth Edition May 2005 Sixth Edition August 2011 Seventh Edition March 9, 2018 This ANSI/UL Standard for Safety consists of the Seventh Edition. The most recent designation of ANSI/UL 1310 as an American National Standard (ANSI) occurred on January 30, 2017. ANSI approval for a st

10、andard 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 Request in ULs On-Line Collaborative Standards Development System (CSDS) at http

11、s:/. 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. COPYRIGHT 2018 UNDERWRI

12、TERS LABORATORIES INC. ANSI/UL 1310-2017UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 9, 2018 CLASS 2 POWER UNITS - UL 1310 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT

13、 PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .7 2 Components8 3 Units of Measurement .9 4 Undated References 9 5 Glossary .9 6 Terminology .11 CONSTRUCTION 7 Mechanical Assembly 11 8 Enclosure .18 9 Protection Against Corrosion 19 10 Switches.19 11 Protective Devices 20 12 Components .21 13 Coi

14、l 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 Output Connections .27 15.1 General .27 15.2 Output wiring 28 15.3 Output terminals .28 15.4 Output connectors 29 15.5

15、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 Parts35 18 Strain Relief36 19 Internal Wiring36 20 Separation of Circuits .37 21 Insulating Materials .37 22 Printed-Wiring Boards .37 23 Gro

16、unding .38 23.1 General 38 23.2 Bonding conductor .39 24 Spacings 40 PERFORMANCE 25 General42 26 Leakage Current Test .46 27 Leakage Current Test and Dielectric Voltage Withstand Test After Humidity Exposure 48 MARCH 9, 2018 CLASS 2 POWER UNITS - UL 1310 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR F

17、URTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 28 Maximum Output Voltage Test .49 29 Maximum Input Test 49 30 Output Current and Power Test 49 30.1 General .49 30.2 Inherently limited .50 30.3 Not inherently limited .51 31 Calibration of Overcurrent Protection Devices Test52 32 Full-

18、Load Output Current Test 52 33 Normal Temperature Test53 34 Dielectric Voltage Withstand Test .57 34.1 General .57 34.2 Induced potential .58 35 Endurance Test on Overcurrent- and Overtemperature-Protective Devices.58 36 Overload and Endurance Tests on Switches and Controls .59 37 Overload Test on S

19、econdary Switches 59 38 Operation Test .60 39 Abnormal Tests.60 39.1 General .60 39.2 Output loading .61 39.3 Output loading alternate method .62 39.4 Transformer burnout 63 39.5 Reverse polarity63 39.6 Switch position .64 39.7 Component breakdown .64 39.8 Printed-wiring board abnormal operation tes

20、t 64 39.9 Backfeed protection 65 40 Tests on Insulating Materials .66 41 Strain Relief Test .67 42 Push-Back Relief Test.67 43 Direct Plug-In Blade Secureness Test .68 44 Direct Plug-In Security of Input Contacts Test 68 44.1 General .68 44.2 Removable, folding, and retractable blade units .68 45 Se

21、curity of Output Connectors Test .69 46 Abuse Tests .70 46.1 General .70 46.2 Impact on direct plug-in units 70 46.3 Impact on cord connected units 72 46.4 Rod pressure on direct plug-in units 72 46.5 Resistance to crushing on direct plug-in units 72 47 Bonding Conductor Test .73 MANUFACTURING AND P

22、RODUCTION TESTS 48 Dielectric Voltage Withstand Test .73 49 Grounding Continuity Test .75 RATINGS 50 General75 MARCH 9, 2018 CLASS 2 POWER UNITS - UL 1310 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARKINGS 51 General76 52 Cautionary a

23、nd Warning Markings 77 53 Application of Labeling 79 INSTRUCTIONS 54 Instruction Manual 79 OUTDOOR USE 55 General80 56 Enclosures .80 57 Protection Against Corrosion .81 58 Gaskets .84 59 Supply Connections .84 60 Output Connections and Wiring.85 61 Spacings 85 62 Accessibility of Live Parts 86 63 G

24、round-Fault Circuit-Interrupters86 64 Performance .87 64.1 General .87 64.2 Abuse tests87 64.3 Rain test 87 64.4 Standing water immersion test .91 65 Markings.91 66 Instructions 92 PERMANENTLY-CONNECTED UNITS FOR CONNECTION TO A WIRING SYSTEM 67 General93 68 Construction .94 69 Wiring Terminals and

25、Leads .95 70 Strain Relief Test .96 71 Markings.96 72 Installation Instructions 97 PERMANENTLY-CONNECTED UNITS FOR INSTALLATION IN AN OUTLET BOX 73 General98 74 Construction .98 75 Polymeric Enclosures .99 76 Spacings 99 77 Performance .99 77.1 General .99 77.2 Assembly test99 78 Installation Instru

26、ctions .101 79 User Instructions 101 80 Markings .101 MARCH 9, 2018 CLASS 2 POWER UNITS - UL 1310 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL POWER UNITS FOR INSTALLATION IN AIR-HANDLING SPACES 81 General 101 82 Marking 102 POWER UNITS

27、SUPPLIED FROM INFORMATION TECHNOLOGY EQUIPMENT DATA PORTS 83 General 102 84 Glossary .102 85 Supply Connections102 86 Enclosure.102 87 Performance 102 87.1 General 102 87.2 Abnormal temperature test .103 87.3 Strain relief test .103 88 Markings .104 89 Instructions .104 FLUSH DEVICE COVER PLATES WIT

28、H INTEGRAL POWER SUPPLY 90 General 104 91 Construction 105 92 Polymeric Enclosures 105 93 Spacings .106 94 Congurations.106 95 Class 2 Output Power Supply Testing 106 96 Assembly Test 107 97 Installation Instructions .108 98 Markings .109 APPENDIX A Standards for ComponentsA1 MARCH 9, 2018 CLASS 2 P

29、OWER UNITS - UL 1310 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 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

30、incorporate components to provide an alternating- or direct-current output. Each output provides Class 2 power levels in accordance with the National Electrical Code, NFPA 70. Maximum output voltage does not exceed 42.4 V peak for alternating current, 60 V for continuous direct current. These produc

31、ts are intended primarily to provide power to low voltage, electrically operated devices. These requirements apply to: a) Portable and semipermanent 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 p

32、otential 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 120 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 nom

33、inal 600 V or less alternating or direct current branch circuit. Direct plug-in and cord-connected units may also be provided with an integral 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 inf

34、ormation technology equipment. 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 National Electrical Code, NFPA 70. Maximum output voltage does not exceed 4

35、2.4 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. 1.2 These requirements cover direct plug-in and cord-connected products whose input power does not exceed 660 W under any poss

36、ible condition of output loading. 1.3 These requirements do not cover the effect that a power unit may have on the equipment or system 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 applic

37、able end-product standard. See 51.4. Examples include considerations related to: a) Mechanical risks such as those presented by tools; 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

38、) Fire risks such as those posed by decorative lighting products. MARCH 9, 2018 CLASS 2 POWER UNITS - UL 1310 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 1.5 These requirements do not cover products intended to charge batteries for star

39、ter motors used to start engines. Products of this type are covered by the Standard for Battery Chargers for Charging Engine-Starter 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

40、the Standard for Toy Transformers, UL 697. 1.7 These requirements do not cover products with outputs other than Class 2, nor battery 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 Oth

41、er Than Class 2, UL 1012. 1.8 Products without a rectier may be covered by 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. 1.9 These requirements do not cover product

42、s powered solely by a dc source. Products of this type are covered by the Standard for Power Converters/Inverters and Power Converter/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 p

43、roducts intended for supplying low voltage landscape lighting. Products of this type are covered by the Standard for Low Voltage Landscape 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

44、that component. See Appendix A for a list of standards covering components used in the products covered by this standard. 2.2 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

45、covered by this standard, or b) Is superseded by a requirement in this standard. 2.3 A component shall be used in accordance with its rating established for the intended conditions of use. 2.4 Specic components are incomplete in construction features or restricted in performance capabilities. Such c

46、omponents 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. MARCH 9, 2018 CLASS 2 POWER UNITS - UL 1310 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION

47、WITHOUT PERMISSION FROM UL 3 Units of Measurement 3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 3.2 Unless otherwise stated, values of current and voltage are rms. 4 Undated References 4.1 Any undated reference to a code

48、or standard appearing 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 shall apply: 5.2 BONDING CONDUCTOR A conductor by which dead metal parts are bonded (c

49、onnected) to the grounding means. 5.3 CLASS2Asource having limited voltage and energy capacity. Requirements for voltage and energy capacity limitations are as indicated in this standard. See the Maximum Output Voltage Test, Section 28, and the Output Current and Power Test, Section 30. 5.4 CONDUCTIVELY CONNECTED A part is conductively connected to another part if the current between the parts exceeds the limit for leakage current specied in Leakage Current Test, Section 26. 5.5 CONSECUTIVE BATTERY CHAR