ANSI UL 2442-2011 UL Standard for Safety Wall- and Ceiling-Mounts and Accessories (First Edition Reprint with Revisions Through and Including January 19 2018)《墙壁和天花板安装架和配件安全标准》.pdf

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ANSI UL 2442-2011 UL Standard for Safety Wall- and Ceiling-Mounts and Accessories (First Edition Reprint with Revisions Through and Including January 19 2018)《墙壁和天花板安装架和配件安全标准》.pdf_第1页
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ANSI UL 2442-2011 UL Standard for Safety Wall- and Ceiling-Mounts and Accessories (First Edition Reprint with Revisions Through and Including January 19 2018)《墙壁和天花板安装架和配件安全标准》.pdf_第3页
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ANSI UL 2442-2011 UL Standard for Safety Wall- and Ceiling-Mounts and Accessories (First Edition Reprint with Revisions Through and Including January 19 2018)《墙壁和天花板安装架和配件安全标准》.pdf_第4页
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ANSI UL 2442-2011 UL Standard for Safety Wall- and Ceiling-Mounts and Accessories (First Edition Reprint with Revisions Through and Including January 19 2018)《墙壁和天花板安装架和配件安全标准》.pdf_第5页
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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2442 Wall- and Ceiling-Mounts and AccessoriesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED

2、FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Wall- and Ceiling-Mounts and Accessories, UL 2442 First Edition, Dated March 16, 2011 Summary of Topics This revision to ANSI/UL 2442 is being issued to incorporate the following: Revision of requirements

3、in 49.1 and 72.7 to address eld cutting and drilling of video mounting systems 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

4、 by an effective date note indicating the date of publication or the date on which the changed requirement becomes effective. These new requirements are substantially in accordance with Proposal(s) on this subject dated November 15, 2013. All rights reserved. No part of this publication may be repro

5、duced, 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 impl

6、ied 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, loss of data, or any other damages arising out of the use of or the inability to use this Standard

7、, 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, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to

8、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 while purchaser is storing an electronic Standard on the purchasers computer system. The requiremen

9、ts 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 effecti

10、ve date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. The following table lists the future effective dates with the corresponding reference. JANUARY 16, 2014 UL 2442 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PER

11、MISSION FROM UL Future Effective Date Reference April 7, 2014 Entire Standard JANUARY 16, 2014 UL 2442 tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 16, 2011 (Title Page Reprinted: January 16, 2014) 1 UL 2442 Standard for Wall- an

12、d Ceiling-Mounts and Accessories First Edition March 16, 2011 This ANSI/UL Standard for Safety consists of the First Edition including revisions through January 16, 2014. The most recent designation of ANSI/UL 2442 as an American National Standard (ANSI) occurred on January 14, 2014. ANSI approval f

13、or 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 should be submitted via a Proposal Request in ULs On-Line Collaborative Standards

14、 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

15、ty of UL. COPYRIGHT 2014 UNDERWRITERS LABORATORIES INC. ANSI/UL 2442-2014UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 16, 2012 WALL- AND CEILING-MOUNTS AND ACCESSORIES - UL 2442 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT A

16、UTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS PART 1 ALL MOUNTING SYSTEMS INTRODUCTION 1 Scope .5 2 Glossary .8 3 Components 13 4 Units of Measurement 13 5 Undated References .14 CONSTRUCTION GENERAL 6 General .14 7 Accessories .14 ELECTRICAL CONSTRUCTION 8 G

17、eneral .15 9 Electrical Enclosures .16 10 Enclosure Openings .17 11 Screens and Expanded Metal 25 12 Doors and Covers 25 13 Screws and Mechanical Connections for Electrical Enclosures .26 14 Electrical Spacings 27 15 Electrical Insulating Materials .29 16 Electrical Ratings .29 17 Wiring and Conduct

18、ors Conductor Size 30 18 Splices and Connections 31 19 Wiring Attached to Movable or Flexible Parts .32 20 Internal Wiring 33 21 Supply Connections .34 21.1 Power-supply cords .34 21.2 Permanently-connected 34B 22 Attachment Plugs .35 23 Interlock Switch .38 24 Interconnected Units 38 25 Polarizatio

19、n and Identication 39 26 Grounding .40 27 Bonding .42 28 Safety Circuits 43 29 Control Circuits .44 30 Laser Devices 44 31 Motors .45 31.1 Motor construction 45 31.2 Motor overload protection .45 32 Requirements for Loads on the Output of a NEC Class 2, LPS or SELV Power Supply .47 32.1 Motor contro

20、llers .47 NOVEMBER 16, 2012 WALL- AND CEILING-MOUNTS AND ACCESSORIES - UL 2442 2AUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 32.2 Electrical enclosures 48 32.3 Luminaires 48 32.4 Interconnecting cables 48 32.5 Connectors 49 MECHANICAL CO

21、NSTRUCTION 33 Mounting of Parts .49 34 Flammability of Mounts 49 35 Adhesives Used to Secure Parts .51 36 Fasteners 51 37 Lubrication .52 38 Corrosion Protection 52 39 Wireways and Tubing .53 40 Strain Relief 53 41 Bushings 54 42 Thermal Insulation 55 43 Glass Panels .55 44 Counter Balance Mechanism

22、s 55 45 Sharp Edges .56 46 Securement of Products for Use with the Mounting System 56 47 Mounting System Ventilation .56 48 Articulating Motor Operated Mounting Systems .56A 48.1 Mechanical enclosures and guards 56A 49 User/Installer Assembly 58A PERFORMANCE GENERAL 50 General 58B ELECTRICAL PERFORM

23、ANCE TESTS 51 Leakage Current Test .64 52 Leakage Current Test Following Humidity Conditioning 66 53 Starting Current Test 67 54 Input Test 67 55 Temperature Test .67 56 Dielectric Voltage-Withstand Test .71 57 Strain Relief Test .72 58 Push-Back Relief Test .73 59 Performance Requirements for Loads

24、 on the Output of a NEC Class 2, LPS or SELV Power Supply .73 59.1 Motors 73 59.2 Running overload test 74 59.3 Locked rotor test .74 NOVEMBER 16, 2012 WALL- AND CEILING-MOUNTS AND ACCESSORIES - UL 2442 2BUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISS

25、ION FROM UL MECHANICAL PERFORMANCE TESTS 60 Mold Stress Test .74 61 Impact Tests .75 61.1 Mount impact test (Plastic parts only) .75 61.2 Electrical enclosure impact test 76 61.3 Glass parts impact test 78 62 Cycling Test for Articulating Mounts .78 63 Mounting Securement Test 81 63.1 Supporting str

26、uctures .81 63.2 Test procedure .84 64 Adhesive Test .85 65 Sharp Edge Test .85 MARKINGS 66 Rating Details 86 67 General 87 68 Motor-Operated Mounting Systems .88 69 Interconnected Units .88A 70 Permanently Electrically-Connected Mounting Systems 89 71 Supporting Surface Load Marking .89 INSTRUCTION

27、S 72 General 91 73 Mounting Instructions 92A 74 Operating Instructions 92B 75 User-Maintenance Instructions .95 76 Grounding and Double Insulation Instructions 96 77 Interconnected Units Instructions .98 PART 2 OUTDOOR MOUNTING SYSTEMS INTRODUCTION 78 General 98 79 Glossary .98 CONSTRUCTION 80 Gener

28、al 99 81 Gaskets and Seals .100 82 Polymeric Materials 100 83 Receptacle Outlets .101 PERFORMANCE 84 General 101 85 Rain Test .102 86 Tensile Strength and Elongation Test 105 87 Compression Test .105 NOVEMBER 16, 2012 WALL- AND CEILING-MOUNTS AND ACCESSORIES - UL 2442 3UL COPYRIGHTED MATERIAL NOT AU

29、THORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARKINGS 88 General 107 NOVEMBER 16, 2012 WALL- AND CEILING-MOUNTS AND ACCESSORIES - UL 2442 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PART 1 ALL MOUNTING SY

30、STEMS INTRODUCTION 1 Scope 1.1 These requirements apply to shelves, brackets, and similar devices, that provide structural support for the mounting of audio/video equipment, information technology equipment, and similar products, to the building structure and are intended for indoor use only. 1.1 ef

31、fective April 7, 2014 1.2 These requirements also apply to accessories that are used to expand the capability of a mounting device; accessories that are used to secure the mounting device to a wall, ceiling, suspended ceiling, truss, joist, I beam, or other building structural component specied by t

32、he manufacturer; and any accessories used to secure an apparatus to the mount. Examples of such products include extension columns, extension arms, ceiling plates, oor plates, ceiling brackets, fastener kits, and VCR/DVD brackets. 1.2 effective April 7, 2014 1.3 A furnishing intended to support audi

33、o equipment or a video display (such as CRT, LCD, and Plasma) shall be evaluated in accordance with one of the following: a) A furnishing which is oor supported and intended to support a video display but is not intended for use as a mobile cart for the video display shall be evaluated to the Standa

34、rd for Household and Commercial Furnishings, UL 962, and may include features that allow securement to the building structure; b) If the furnishing is provided with casters or wheels, the Standard for Household, Commercial, and Institutional-Use Carts, Stands and Entertainment Centers for Use with A

35、udio and/or Video Equipment, UL 1678, or the Standard for Tall Institutional Carts for Use With Audio-, Video-, and Television-Type Equipment, UL 1667, as applicable to the use of the cart shall apply; c) If the furnishing is intended to be mounted to walls, ceilings or another permanent part of a b

36、uilding as the primary support means, this Standard shall apply; d) If a furnishing is supplied with all of the video and/or audio components by the manufacturer of those components, the requirements contained in the video or audio component standard shall be applied the Standard for Audio, Video an

37、d Similar Electronic Apparatus Safety Requirements, UL 60065, or the Standard for Information Technology Equipment Safety Part 1: General Requirements, UL 60950-1, as applicable to the product. Exception: A video display support system evaluated in accordance with (a) (c) above and supplied with all

38、 of the video and/or audio components is not subject to (d). Revised 1.3 effective April 7, 2014 SEPTEMBER 6, 2013 WALL- AND CEILING-MOUNTS AND ACCESSORIES - UL 2442 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 1.4 These requirements do

39、not apply to the following products: a) Carts and stands. The Standard for Household, Commercial, and Institutional-Use Carts, Stands and Entertainment Centers for Use with Audio and/or Video Equipment, UL 1678, and the Standard for Tall Institutional Carts for Use With Audio-, Video-, and Televisio

40、n-Type Equipment, UL 1667, apply to these products. b) The following products covered by the Standard for Household and Commercial Furnishings, UL 962: SEPTEMBER 6, 2013 WALL- AND CEILING-MOUNTS AND ACCESSORIES - UL 2442 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTIO

41、N WITHOUT PERMISSION FROM UL 1) Motor-operated furniture, such as motor-operated beds and chairs; 2) Electried and non-electried furniture, such as: i) Lighted curio cabinets; ii) Microwave carts; and iii) Bed headboards. 3) Non-seasonal electrical decorations such as lava lamps and wave machines; 4

42、) Home and individual office furnishings, such as study carrels, consoles and desks; 5) Commercial product and informational displays such as: i) Shelving units; ii) Kiosks (such as the mini-stores in the middle of a mall); iii) Cash station stands; iv) Motorized carpet displays; and v) Product plat

43、forms. 6) Electried building components, such as windows and built in bathroom cabinets; and 7) Other similar miscellaneous furnishings intended for use in residential or commercial environments. Revised 1.4 effective April 7, 2014 1.5 These requirements do not apply to a mounting device provided wi

44、th a specic product when the specic product standard is provided with requirements to address the mounting device. Such combinations shall comply with the applicable requirements of the end-use product standard. 1.5 effective April 7, 2014 1.6 These requirements do not cover products intended for us

45、e in patient care areas including where oxygen is being used. Patient care products are covered by the Standard for Medical Electrical Equipment, Part 1: General Requirements for Safety, UL 60601-1. 1.6 effective April 7, 2014 1.7 These requirements do not cover products that are specically intended

46、 for infants or juveniles. 1.7 effective April 7, 2014 SEPTEMBER 6, 2013 WALL- AND CEILING-MOUNTS AND ACCESSORIES - UL 2442 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 1.8 These requirements do not cover the mount to supported apparatus

47、 interface. 1.8 effective April 7, 2014 2 Glossary 2.1 For the purpose of this standard, the following denitions apply. 2.1 effective April 7, 2014 2.2 APPARATUS Video display, computer, amplier, speaker and similar components intended to be supported by the mounting system. 2.2 effective April 7, 2

48、014 2.3 ATTENDED EQUIPMENT Equipment intended for use where operator presence is required for the equipment to function but is not necessarily required for the equipment to operate. 2.3 effective April 7, 2014 2.4 BALLAST A current limiting device required to start and operate uorescent and cold cat

49、hode lamps. 2.4 effective April 7, 2014 2.5 BULB (LAMP) A device which emits light. 2.5 effective April 7, 2014 2.6 CLASS 2 CIRCUIT An isolated secondary circuit involving a potential of not more than 30-volt rms maximum 42.4 volts peak open circuit secondary potential under any condition of loading or open circuit. There shall be no electrical connection between the primary and secondary windings of a transformer or between a primary or secondary circuit and the enclosure. a) An inh

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