UL 2161-2016 UL Standard for Safety Neon Transformers and Power Supplies (Second Edition).pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2161 Neon Transformers and Power Supplies STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL

2、 NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Neon Transformers and Power Supplies, UL 2161 Second Edition, Dated April 6, 2016 Summary of Topics The second edition of UL 2161 is being issued to address the editorial maintenance of UL

3、Standards for Safety and to remove the reference of the withdrawal date for UL 873. Any changes that were made are considered to be non-substantive 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

4、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 implied warranties of merchantability or tness for any purp

5、ose. In no 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 bee

6、n advised of 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 agains

7、t any loss, 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. APRIL 6, 2016 UL 2161 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR F

8、URTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 6, 2016 UL 2161 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 6, 2016 1 UL 2161 Standard for Neon Transformers and Power Supplies First Edit

9、ion September, 1996 Second Edition April 6, 2016 This UL Standard for Safety consists of the Second edition. 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

10、 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, and rights regarding those Standards shall remain the sole and exclusive proper

11、ty of UL. COPYRIGHT 2016 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 6, 2016 NEON TRANSFORMERS AND POWER SUPPLIES - UL 2161 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPR

12、ODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS PART 1 ALL NEON SUPPLIES INTRODUCTION 1 Scope .6 2 Components 8 3 Reference Publications 8 4 Units of Measurement .8 5 Terminology 8 6 Glossary .9 CONSTRUCTION 7 Enclosures 13 7.1 General 13 7.2 Metallic enclosure .14 7.3 Corrosion protect

13、ion .14 7.4 Polymeric enclosure .14 8 Accessibility Barriers .16 9 Openings and Open Holes 18 10 Securement of Parts 20 11 Sharp Edges .21 12 Mounting 21 13 User Accessible Controls 22 14 Supply Connections (Does Not Include Equipment Grounding) .22 14.1 Permanently-connected supplies .22 14.2 Suppl

14、y terminals .23 14.3 Supply leads .25 14.4 Cord- and plug-connected supplies .25 14.5 Source of supply other than a branch circuit .26 15 Equipment Grounding .27 16 Equipment Grounding Means 27 16.1 General .27 16.2 Grounding terminal .28 16.3 Grounding leads .29 16.4 Grounding, cord-connected neon

15、supplies .29 17 Bonding .30 18 Internal Wiring 30 18.1 General .30 18.2 Prevention of wire damage 31 19 Internal Electrical Connections (Other Than Output Circuitry) .31 20 Output .32 20.1 Output ratings .32 20.2 Output terminals .32 20.3 Output cables 32 21 Input/Output Isolation 33 22 Electrical C

16、omponents .34 22.1 General .34 22.2 Switches 34 APRIL 6, 2016 NEON TRANSFORMERS AND POWER SUPPLIES - UL 2161 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 22.3 Over-current protection 35 22.4 Capacitors .35 22.5 Transformers 36 22.6 Therm

17、al protective devices 36 22.7 Printed-wiring boards .36 22.8 Electrode receptacles .37 23 Secondary Ground-Fault Protection .37 24 Spacings 39 25 Insulation 43 PERFORMANCE 26 General 44 27 Input Measurement Test .46 28 Isolated Output Determination Test .47 29 Output Measurement Tests 47 29.1 Maximu

18、m output voltage 47 29.2 Maximum output current measurement 48 30 Temperature Test .49 31 Dielectric Voltage-Withstand Tests 57 31.1 General .57 31.2 Primary and secondary circuits .57 31.3 Barrier and insulating materials 59 32 Leakage Current Test .60 33 Input to Output Isolation Test .62 34 Groun

19、ding Continuity Test .63 35 Strain and Push-Back Relief Test .63 36 Switch Loading Tests .64 36.1 General .64 36.2 Overload 65 36.3 Endurance 65 37 Abnormal Operation Tests .65 37.1 General .65 37.2 Output open-circuit .67 37.3 Abnormal component short- and open-circuit 67 37.4 Output short-circuit

20、abnormal temperature test .68 37.5 Output shorted-to-ground abnormal test .68 38 Printed-Wiring Board Tests 68 38.1 Abnormal trace-to-trace short-circuit 68 38.2 Conformal coating 69 39 Mechanical Tests .70 39.1 Polymeric mounting means load .70 39.2 Knockout 70 40 Wire-Binding Screw Terminal Tests

21、.70 40.1 Solid-wire tightening 70 40.2 Performance verication of terminal assemblies on a terminal block 71 41 Secondary Ground-Fault Parameters Test .71 42 Secondary Ground-Fault Protection Circuit Abnormal Tests 83 42.1 General .83 42.2 Component fault .84 42.3 Thermal aging .85 42.4 Overvoltage a

22、nd undervoltage .86 42.5 Power supply interruption .86 APRIL 6, 2016 NEON TRANSFORMERS AND POWER SUPPLIES - UL 2161 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 42.6 Transient surge 86 42.7 Humidity 87 MANUFACTURING AND PRODUCTION TESTS

23、43 Production-Line Grounding Continuity Test .89 44 Production-Line Dielectric Voltage-Withstand Test 90 MARKINGS 45 General 91 46 Identication .91 47 Ratings 92 48 Cautionary Markings 93 INSTRUCTIONS 49 Installation .94 PART 2 OUTDOOR NEON SUPPLIES NON-WEATHERPROOF NEON SUPPLIES 50 General 95 51 Co

24、nstruction Electrical .95 52 Performance .95 WEATHERPROOF NEON SUPPLIES 53 General 95 54 Construction Mechanical, Corrosion Protection .96 55 Exclusion of Water 97 55.1 Enclosures 97 55.2 Gaskets and bushings 98 55.3 Openings 98 56 Construction Electrical .98 PERFORMANCE 57 Accelerated Aging of Gask

25、ets 98 58 Water Spray .99 MARKINGS 59 General 102 APPENDIX A Standards for ComponentsA1 APRIL 6, 2016 NEON TRANSFORMERS AND POWER SUPPLIES - UL 2161 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PART 1 ALL NEON SUPPLIES INTRODUCTION 1 Sco

26、pe 1.1 This standard applies to transformers and power supplies, including those intended to be connected to a Class 2 source of supply, that provide the voltage and ballasting for neon and cold-cathode tubing (electric-discharge tubing) consisting of electrodes and gas such as neon, mercury, helium

27、, argon, and similar gases, enclosed in glass. Neon transformers and power supplies for use in signs and outline lighting are intended to be used in accordance with Article 600 of the National Electrical Code, NFPA 70. Cold-cathode supplies identied for use only in cold-cathode lighting systems are

28、intended to be used in accordance with Article 410 of the National Electrical Code. 1.2 Neon transformers and power supplies covered by this standard are designated by their construction and intended use as specied in Table 1.1. 1.3 The following neon supplies are only covered as components for use

29、in an end product that is determined to comply with the Standard for Electric Signs, UL 48: a) Type 1 neon supplies; b) Types 5 and 6 neon supplies when complying with Exception No. 3 to 23.1; c) Types 6, 7, and 8 neon supplies when complying with the Exception to 14.4.1 or the Exception to 14.4.3;

30、d) All types of neon supplies having an isolated output when complying with Exception No. 2 to 23.1; and e) Cold-cathode supplies when complying with Exception No. 5 to 23.1. 1.4 These requirements do not cover transformers or power supplies intended to supply other forms of electric-discharge light

31、ing sources such as uorescent and high-intensity-discharge lighting. Requirements for uorescent supply sources are covered in the Standard for Fluorescent-Lamp Ballasts, UL 935, and the requirements for high-intensity-discharge lighting supply sources are covered in the Standard for High-Intensity-D

32、ischarge Lamp Ballasts, UL 1029. 1.5 These requirements do not cover transformers or power supplies that are intended for use with oil burners. The requirements for oil ignition transformers are covered in the Standard for Low Voltage Transformers Part 1: General Requirements, UL 5085-1 and the Stan

33、dard for Low Voltage Transformers Part 2: General Purpose Transformers, UL 5085-2, and for oil ignition power supplies are covered in the Standard for Power Units Other Than Class 2, UL 1012. APRIL 6, 2016 NEON TRANSFORMERS AND POWER SUPPLIES - UL 2161 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FUR

34、THER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Table 1.1 Construction type designation Core and/or circuitry Primary connections Secondary connections Type designa- tions Completely enclosed a Any part exposed b Wiring terminals or leads Power supply cord Wiring terminals or leads Inte

35、-gral recep- tacles Type designa- tion number see numbered footnotes for denition Exposed not in wiring compartment or through conduit tting Unexposed in wiring compartment or through conduit tting Exposed not in wiring compartment or through conduit tting Unexposed in wiring compartment or through

36、conduit tting no yes yes no no yes no no 1 yes no yes no no yes no no 2 yes no no yes no yes no no 3 yes no no yes no no yes no 4 yes no no yes no no no yes 5 yes no no no yes no no yes 6 yes no no no yes yes no no 7 yes no no no yes no yes no 8 a Enclosed is the containment of electrical parts in a

37、 material that complies with 7.1. b Exposed is any current carrying part other than input and output leads or terminals that is not contained in accordance with 7.1. Type 1 Open core-and-coil transformer or open power supply that requires a complete enclosure in the end product. Type 2 Neon supply w

38、ith the input and output terminals, leads, and connections enclosed in the end product. Type 3 Neon supply with input leads or terminals enclosed and intended for connection to a permanent wiring system, and with secondary leads or terminals required to be enclosed in the end product. Type 4 Neon su

39、pply that is fully enclosed including the output and is intended for connection to a permanent wiring system. Type 5 Neon supply that is fully enclosed and intended for connection to a permanent wiring system, and is provided with integral output receptacles. Type 6 Cord-connected neon supply provid

40、ed with integral output receptacles. Type 7 Cord-connected neon supply with secondary output leads or terminals needing to be enclosed in the end product. Type 8 Cord-connected neon supply with enclosed output leads or terminals. APRIL 6, 2016 NEON TRANSFORMERS AND POWER SUPPLIES - UL 2161 7UL COPYR

41、IGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 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 com

42、ponents 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 covered by this standard, or b) Is superseded by a requirement in t

43、his 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 components are intended for use only under limited conditions, such

44、as certain temperatures not exceeding specied limits, and shall be used only under those specic conditions. 3 Reference Publications 3.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or

45、standard. 4 Units of Measurement 4.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 4.2 Unless otherwise indicated, all voltage and current values mentioned in this standard are root-mean-square (rms). 5 Terminology 5.1 As use

46、d in these requirements, terms are used to refer to particular parts or features as indicated in Table 5.1. APRIL 6, 2016 NEON TRANSFORMERS AND POWER SUPPLIES - UL 2161 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Table 5.1 Terminology c

47、hart Terms Refers to: Input Primary winding input of a transformer and the input of a power supply Neon power supply Electronic power supply Neon supply A neon transformer, neon power supply, cold-cathode transformer, and a cold-cathode power supply Neon transformer Ferromagnetic transformer supply

48、Output Secondary winding output of a neon transformer and the output of a power supply Secondary ground-fault protection Ground-fault protection that responds to a ground-fault on the secondary of a neon transformer or on the output of a neon power supply 6 Glossary 6.1 For the purpose of this stand

49、ard the following denitions apply. 6.2 ACCESSIBILITY BARRIER A material provided to limit access to uninsulated live parts and to live parts insulated with materials not intended to be subject to user contact. See Enclosure, 6.12, when an accessibility barrier also serves as an enclosure. 6.3 ADHESIVE A bonding material (such as epoxy, paste, cement) placed between parts to be fastened together that adheres to each part, and remains the securement medium between the part