1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 813 Commercial Audio EquipmentUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REP
2、RODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Commercial Audio Equipment, UL 813 Seventh Edition, Dated December 13, 1996 Summary of Topics This revision to UL 813 is being issued to remove the reference to the withdrawal date of UL 873 and to address universal upke
3、ep of UL Standards for Safety. These revisions are considered to be non-substantive and not subject to ULs STP process. 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 ver
4、tical line in the margin and are followed by an effective date note indicating the date of publication or the date on which the changed requirement becomes effective. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any m
5、eans, 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 purpose. In no event
6、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 been advised of the
7、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 against any loss, expen
8、se, 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 requirements in this Standard are now in effect, except for those paragraphs, sect
9、ions, 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 effective date are located after the Standard, and are preceded by a SUPERSEDED
10、 REQUIREMENTS notice. OCTOBER 4, 2013 UL 813 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 4, 2013 UL 813 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION
11、 FROM UL DECEMBER 13, 1996 (Title Page Reprinted: October 4, 2013) 1 UL 813 Standard for Commercial Audio Equipment The rst, second, and third editions were titled Standard for Sound-Recording and -Reproducing Equipment. First Edition April, 1930 Second Edition November, 1954 Third Edition May, 1973
12、 Fourth Edition September, 1978 Fifth Edition October, 1985 Sixth Edition December, 1992 Seventh Edition December 13, 1996 This UL Standard for Safety consists of the Seventh Edition including revisions through October 4, 2013. Comments or proposals for revisions on any part of the Standard may be s
13、ubmitted 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. All of ULs St
14、andards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2013 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 7, 2010 COMMERC
15、IAL AUDIO EQUIPMENT - UL 813 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .5 2 General 6 2.1 Components .6 2.2 Units of measurement .6 2.3 Undated references .6 3 Glossary 6A CONSTRUCTIO
16、N 4 General 7 5 Enclosures .7 5.1 General .7 5.2 Corrosion resistance 8 6 Mechanical Assembly 10 7 Supply Connections Permanently Connected Equipment 10 7.1 General 10 7.2 Separation of circuits 12 7.3 Wiring terminals .12 8 Supply Connections Cord- and Plug-Connected Equipment .14 8.1 General 14 8.
17、2 Power supply cords and cord sets .14 8.3 Appliance coupler 14B 8.4 Cord strain relief .14B 8.5 Cord push-back relief .14B 8.6 Cord-bearing surface 15 8.7 Cord and wire routing 15 8.8 Attachment plug .15 8.9 Bushings .17 9 Audio Output Connections 17 10 Auxiliary Power Connections .19 11 Lampholder
18、s .19 12 Receptacles 19 13 Switches .20 13.1 General .20 13.2 Switch current rating 20 14 Protective Devices 20 14.1 General .20 14.2 Circuits 20 14.3 Fuses .20 14.4 Battery circuit protection .20 15 Capacitors 20A 16 Batteries .20A 16.1 General 20A 16.2 Automotive-type battery cord connections 20B
19、17 Motors .20B 18 Coil Windings .20B 19 Sleeving, Tape, Tubing, and Wire Insulation .22 19.1 General .22 MAY 7, 2010 COMMERCIAL AUDIO EQUIPMENT - UL 813 2AUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 19.2 Mechanical protection .22 19.3 Pr
20、imary wiring 22A 19.4 Types of wire .22A 20 Remote Control and Interconnecting Cables 22B 21 Splices and Connections 24 21.1 General .24 21.2 Wire-wrapped connections 25 21.3 Aluminum terminations 26 22 Friction-Fit Electrical Connectors 26 23 Connector and Component Displacement 26A 24 Integrated C
21、ircuits .26A 25 Materials .27 25.1 General .27 25.2 Guard and barrier insulating material (to render live parts inaccessible) .28 26 Spacings .32A 26.1 Field-wiring terminals 32A 26.2 Primary circuits 33 26.3 Secondary circuits 34 26.4 Barriers and liners 34 27 Grounding .34 27.1 General .34 27.2 Co
22、rd connected equipment 35 27.3 Permanently connected equipment .36 28 Separation of Circuits .37 29 Live Parts 38 30 Electric Shock 38 30.1 Shock current and voltage .38 30.2 Leakage current 42 30.3 Transient electric shock .42 30.4 Antenna connections .44 31 Risk of Fire 44 32 Low-Voltage, Limited-
23、Energy Circuits 44 33 Nonhazardous Secondary Circuits 46 34 Accessibility of Live Parts 46 34.1 General .46 34.2 Adjustment opening 48 34.3 Top opening 48A 34.4 Protective screens and barriers 49 34.5 Control shaft .49 34.6 Captive part .50 34.7 Octal base tube socket .50 34.8 Interlocks 50 35 User
24、Servicing 51 36 Field-Installed Accessories .52 37 Protection Against Injury To Persons 52 37.1 General .52 37.2 Power-operated moving parts 52 37.3 Enclosures and guards .53 37.4 Sharp edges and projections 53 MAY 7, 2010 COMMERCIAL AUDIO EQUIPMENT - UL 813 2BUL COPYRIGHTED MATERIAL NOT AUTHORIZED
25、FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PERFORMANCE 38 General 53 38.1 Alternating-current and direct-current equipment .53 38.2 Voltmeters .53 38.3 Cheesecloth indicators 54 38.4 Supply circuit voltage and frequency 54 39 Operation Test .54 40 Leakage Current and Shock C
26、urrent Tests .54 40.1 Leakage current 54 40.2 Electric shock current .57 40.3 Electric shock at audio output under fault conditions 57 41 Power Output and Power Input Tests .59 41.1 Power output 59 41.2 Power input .59 42 Temperature Test .60 42.1 General .60 42.2 Rack-mounted equipment .64 42.3 Por
27、table equipment .65 43 Audio Output Maximum Voltage Test 66 44 Maximum Voltage Test 66 45 Dielectric Voltage-Withstand Test .67 45.1 General .67 45.2 Primary circuits 67 45.3 Isolating power transformer 67 45.4 Primary insulation 68 45.5 Output circuit 68 45.6 Power transformer secondary 68 45.7 Dir
28、ect-connected power supply .68 45.8 Printed wiring assembly .69 46 Test For Low-Voltage, Limited-Energy Circuits .69 47 Test For Nonhazardous Secondary Circuits .70 48 Abnormal Operation Test 72 48.1 General .72 48.2 Power supply tests .73 48.3 Short-circuit test 74 48.4 Abnormal temperature test 75
29、 48.5 Protective devices 75 49 Battery Test 76 49.1 Battery supply test .76 49.2 Battery overcharge test .76 49.3 Battery discharge test .76 49.4 Battery drop test .76 49.5 Battery oven test .76 49.6 Test results 77 50 Switching Device Test .77 51 Solid State Switch Test 78 51.1 Abnormal operation t
30、est .78 51.2 Voltage surge test 78 52 Tests For Remote Control and Interconnecting Cables 80 52.1 Cable short circuit 80 52.2 Cable arcing test 80A 53 Strain Relief and Connectors Test 81 MAY 7, 2010 COMMERCIAL AUDIO EQUIPMENT - UL 813 2CUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTIO
31、N OR DISTRIBUTION WITHOUT PERMISSION FROM UL 54 Pushback Relief Test 81 55 Flexing Test 82 56 Strength of Enclosure Test .82 56.1 General .82 56.2 Enclosure loading test 83 56.3 Pressure test 83 56.4 Impact test 83 56.5 Back cover impact and bending test 84 56.6 Drop test 84 56.7 Handle strength tes
32、t 85 56.8 Mounting means test .85 56.9 Stability test .85 57 Test for Permanence of Markings .86 58 Grille Cloth Test 86 59 Field-Installed Accessory Test 86 MANUFACTURING AND PRODUCTION-LINE TESTS 60 Production-Line Dielectric Voltage-Withstand Test 87 61 Production-Line Grounding Continuity Test .
33、88 RATINGS 62 General 88 MARKINGS 63 Marking Type and Size 88 64 Identication and Ratings 89 64.1 General .89 64.2 Accessory identication .90 64.3 User serviceable components 90 64.4 Factory identication 90 64.5 Parallel slot receptacle 90 64.6 Nonstandard type receptacle 90 64.7 Auxiliary power con
34、nections .91 64.8 Protective devices replacement 91 64.9 Audio output .91 64.10 Input voltage selector 92 64.11 Multiple input voltage 92 64.12 Wire temperature 92 64.13 Equipment rack system 92 65 Cautionary and Warning Markings .92A 65.1 User serviceable parts .92A 65.2 Interlock warning 94A 65.3
35、Fuse replacement 96 65.4 Battery replacement .96A 65.5 Exposure warning .96A 65.6 Graphical symbols 96A 66 Instructions 97 66.1 General .97 66.2 Accessory installation instructions 97 DECEMBER 7, 1999 COMMERCIAL AUDIO EQUIPMENT - UL 813 2DUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTI
36、ON OR DISTRIBUTION WITHOUT PERMISSION FROM UL APPENDIX A Standards for ComponentsA1 SEPTEMBER 10, 1999 COMMERCIAL AUDIO EQUIPMENT - UL 813 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This page intentionally left blank. OCTOBER 29, 2007
37、COMMERCIAL AUDIO EQUIPMENT - UL 813 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover power-operated audio equipment and accessories, rated 300 volts or less, that are intended for use in comm
38、ercial enterprises or establishments and other locations such as churches, schools, theaters, and factories. This equipment is for use on supply circuits in accordance with the National Electrical Code, NFPA 70. 1.2 Commercial audio equipment includes ampliers, preampliers, mixers, signal processors
39、, public address and centralized sound systems, intercommunicating devices and systems, phonographs, tape players, and recorders, radio receivers, tuners, and tuner-ampliers, power supplies intended for use with commercial sound systems, special effects units, and integral amplier-speakers. 1.3 Thes
40、e requirements also cover accessories for use with commercial audio equipment such as tape erasers and head demagnetizers. 1.4 These requirements do not cover equipment that is covered by individual requirements separate from this standard such as: a) Dictating and transcribing machines for office u
41、se; b) Musical instruments and accessories for non-professional use; c) Household type ampliers, tuner-ampliers, phonographs, radio receivers, and recorders; and d) Amateur radio equipment. 1.5 A product that contains features, characteristics, components, materials, or systems new or different from
42、 those covered by the requirements in this standard, and that involves a risk of re or of electric shock or injury to persons shall be evaluated using appropriate additional component and end-product requirements to maintain the level of safety as originally anticipated by the intent of this standar
43、d. A product whose features, characteristics, components, materials, or systems conict with specic requirements or provisions of this standard does not comply with this standard. Revision of requirements shall be proposed and adopted in conformance with the methods employed for development, revision
44、, and implementation of this standard. 1.5 revised December 7, 1999 OCTOBER 29, 2007 COMMERCIAL AUDIO EQUIPMENT - UL 813 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2 General 2.1 Components 2.1.1 Except as indicated in 2.1.2, a componen
45、t 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 generally used in the products covered by this standard. 2.1.2 A component is not required to comply with a specic requirement that: a) Involves a
46、 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. 2.1.3 A component shall be used in accordance with its rating established for the intended conditions of use. 2.1.4 Specic compo
47、nents 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. 2.2 Units of measurement 2.2.1
48、 When a value for measurement is followed by a value in other units in parentheses, the rst stated value is the requirement. 2.2.2 Unless otherwise indicated, all voltage and current values mentioned in this standard are root-mean-square (rms). 2.3 Undated references 2.3.1 Any undated reference to a
49、 code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard. OCTOBER 29, 2007 COMMERCIAL AUDIO EQUIPMENT - UL 813 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3 Glossary 3.1 For the purpose of this standard the following denitions apply. 3.2 CORD-CONNECTED EQUIPMENT Equipment intended to be connected to the supply circuit by means of a exible co
