1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 469 Musical Instruments and AccessoriesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FU
2、RTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Musical Instruments and Accessories, UL 469 Fourth Edition, Dated November 3, 2006 Summary of Topics This revision to UL 469 is being issued to remove the reference to the withdrawal date of UL 873 and to addres
3、s universal upkeep 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 m
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10、 by a SUPERSEDED REQUIREMENTS notice. OCTOBER 3, 2013 UL 469 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 3, 2013 UL 469 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WI
11、THOUT PERMISSION FROM UL NOVEMBER 3, 2006 (Title Page Reprinted: October 3, 2013) 1 UL 469 Standard for Musical Instruments and Accessories First Edition March, 1982 Second Edition April, 1993 Third Edition September, 1997 Fourth Edition November 3, 2006 This UL Standard for Safety consists of the F
12、ourth Edition including revisions through October 3, 2013. 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:/. ULs Standard
13、s 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 2013 UNDERWRITERS LABORATORIES
14、 INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 3, 2006 MUSICAL INSTRUMENTS AND ACCESSORIES - UL 469 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM
15、UL CONTENTS INTRODUCTION 1 Scope .7 2 General 7 2.1 Components .7 2.2 Units of measurement .8 2.3 Undated references .8 3 Glossary .8 CONSTRUCTION 4 General .10 5 Enclosure .11 6 Mechanical Assembly 12 7 Materials 13 7.1 General 13 7.2 Guard and barrier insulating material for rendering live parts i
16、naccessible 17 8 Protection Against Corrosion 17 9 Current-Carrying Parts 18 10 Accessibility of Live Parts 18 10.1 General .18 10.2 Adjustment opening 20 10.3 Screens, barriers, and other openings 20 10.4 Control shaft .21 10.5 Captive part .21 11 Exposure to Rain or Moisture 21 12 Supply Connectio
17、ns .22 12.1 General .22 12.2 Power-supply cord 22 12.3 Cord-connector body .23 12.4 Cord strain relief .23 12.5 Cord push-back relief .23 12.6 Bushings 24 12.7 Cord routing .24 12.8 Attachment plug 25 13 Grounding .25 13.1 General .25 13.2 Grounding-type cord-connector body .27 13.3 Grounding adapte
18、rs 27 13.4 Grounded-product receptacle 27 14 Supply-Circuit-Voltage Selector .27 15 Capacitors .28 16 Lampholders .28 17 Receptacles 29 18 Overload Protection .29 18.1 General .29 18.2 Fuses .29 19 Internal Wiring 30 19.1 Types of wire 30 19.2 Sleeving, tape, tubing, and wire insulation .30 NOVEMBER
19、 3, 2006 MUSICAL INSTRUMENTS AND ACCESSORIES - UL 469 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 19.3 Mechanical protection .30 19.4 Splices and connections 31 19.5 Wire-wrapped connections 32 19.6 Aluminum terminations 32A 19.7 Quick-
20、connect terminals .33 20 Remote-Control and Interconnecting Cables .33 21 Integrated Circuits 34 22 Motors, Coil Windings, and Transformers 35 23 Field-Installed Accessories .36 24 Switches and Interlocks .36 24.1 Switches 36 24.2 Interlocks 36 25 Spacings 37 25.1 General .37 25.2 Barriers and liner
21、s 38 26 Risk of Fire 38 27 Low-Energy Circuits .39 27.1 Low-voltage, limited-energy circuits .39 27.2 Nonhazardous secondary circuits 40 PROTECTION AGAINST INJURY TO PERSONS 28 Scope .40 29 General 41 30 Power-Operated Moving Parts 41 31 Enclosures and Guards 42 32 Sharp Edges .42 PERFORMANCE 33 Gen
22、eral 42 33.1 Voltmeters .42 33.2 Cheesecloth indicators 43 33.3 Supply circuit 43 34 Normal-Operation Tests .44 35 Connector- and Component-Displacement and -Substitution Tests 44 35.1 General .44 35.2 Vacuum-tube substitution .45 36 Leakage-Current and Shock-Current Tests .45 36.1 Leakage-current t
23、est 45 36.2 Shock-current test 49 37 Resistance of Grounding Circuit Test 54 38 Power-Input Test .54 39 Temperature Test .56 40 Audio-Output Test 60 41 Dielectric Voltage-Withstand Tests 61 41.1 General .61 41.2 Primary circuit .62 41.3 Isolating power transformer 62 41.4 Primary insulation 62 41.5
24、Output circuit 62 41.6 Power-transformer secondary 62 41.7 Direct-connected power supply .63 MARCH 18, 2010 MUSICAL INSTRUMENTS AND ACCESSORIES - UL 469 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 41.8 Printed-wiring assembly .63 41.9 M
25、aximum voltage test .63 42 Leakage Current After Humidity Conditioning Test 64 43 Capacitor Test 64 44 Low-Energy Circuit Tests for Low-Voltage, Limited-Energy Circuits .64 44.1 General .64 44.2 Current capacity 64 44.3 Volt-ampere capacity .65 44.4 Continuous operation .65 44.5 Abnormal-operation .
26、66 45 Low-Energy Circuit Tests for Nonhazardous Secondary Circuits 66 45.1 Power and voltage determination .66 45.2 Abnormal operation .67 45.3 Continuous operation .67 46 Abnormal-Operation Tests .68 46.1 General .68 46.2 Component abnormal-operation test 69 46.3 Audio-output-fault conditions .70 4
27、6.4 Endurance 72 46.5 Abnormal temperature test 72 47 Switching-Device Test .73 48 Solid-State Switch Test 74 48.1 Abnormal operation .74 48.2 Voltage-surge test 74 49 Protective-Circuit Test .77 50 Remote-Control and Interconnection Cable Test 77 50.1 Cable-short-circuit test 77 50.2 Cable-arcing t
28、est .77 51 Strain-Relief Test .78 52 Separable-Connector Test .78 53 Flexing Test 79 54 Solderless Wire-Wrap Connections Tests 79 54.1 General contact points 79 54.2 Unwrapping test 79 54.3 Strip-force test .81 55 Strength of Enclosure Tests 81 55.1 General .81 55.2 Enclosure-loading test 82 55.3 Pr
29、essure test 82 55.4 Impact test 82 55.5 Back-cover-bending test 83 55.6 Drop test 83 55.7 Handle-strength test 84 55.8 Enclosure temperature-stability test .85 56 Stability Tests 86 57 Exposure to Rain Test .86 58 Grille-Cloth Test 89 59 Field-Installed Accessory Test 89 MANUFACTURING AND PRODUCTION
30、 TESTS 60 Dielectric Voltage-Withstand Test .89 61 Grounding-Continuity Test .91 NOVEMBER 3, 2006 MUSICAL INSTRUMENTS AND ACCESSORIES - UL 469 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL RATING 62 General 91 MARKING 63 Permanence .91 64
31、 Details .92 64.1 Marking type and size 92 64.2 Identifying and rating information .93 64.3 Accessory identication .94 64.4 User-serviceable components 94 64.5 Factory identication 94 64.6 Interlock warning .94 64.7 Receptacles .95 64.8 Protective-device replacement .95 64.9 Lamp replacement .97 64.
32、10 Input-voltage selector 97 64.11 Multiple-input voltage 97 64.12 Exposure warning .97 64.13 Grounding adapter 97 65 Graphic Symbols and Supplemental Marking .98 65.1 No-user-serviceable parts compartment warning .98 65.2 Location .100 65.3 Graphic-symbol size and color 100 65.4 Supplemental markin
33、g size and color 101 65.5 Size of outlines and symbols .102 INSTRUCTIONS 66 General 102 67 Instructions Pertaining to a Risk of Fire, Electric Shock, or Injury to Persons 103 68 Installation and Operating Instructions 105 69 User-Maintenance Instructions 107 APPENDIX A Standards for ComponentsA1 NOV
34、EMBER 3, 2006 MUSICAL INSTRUMENTS AND ACCESSORIES - UL 469 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover power-operated musical instruments and accessories rated 300 volts or less, intende
35、d for household and commercial use on supply circuits in accordance with the National Electrical Code, NFPA 70. 1.2 Musical instruments include organs, electronic pianos, music synthesizers, and other such products that produce music under the direct control of the player. 1.3 These requirements als
36、o cover accessories for use with musical instruments, such as rhythm generators and similar equipment having self-contained tone generators, tone cabinets, music tuners, and the like. 1.4 These requirements do not cover commercial audio equipment, such as ampliers, mixers, and signal processors for
37、general use; or special effects units, amplier-speakers, and the like, that are intended for use by professional and semiprofessional musicians. 1.5 These requirements do not cover musical instruments that are categorized as electrically operated toys and are covered by the Standard for Electric Toy
38、s, UL 696. 1.6 A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this standard, and that involves a risk of re, electric shock, or injury to persons shall be evaluated using the appropriate additional compo
39、nent and end-product requirements as determined necessary to maintain the acceptable level of safety as originally anticipated by the intent of this standard. A product whose features, characteristics, components, materials, or systems conict with specic provisions of this standard cannot be judged
40、to comply with this standard. Where considered appropriate, revision of requirements shall be proposed and adopted in conformance with the methods employed for development, revision, and implementation of this standard. 2 General 2.1 Components 2.1.1 Except as indicated in 2.1.2, a component of a pr
41、oduct 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 need not comply with a specic requirement that: a) Involves a feature or charact
42、eristic not needed in the application of the component in the product covered by this standard or b) Is superseded by a requirement in this standard. NOVEMBER 3, 2006 MUSICAL INSTRUMENTS AND ACCESSORIES - UL 469 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT
43、 PERMISSION FROM UL 2.1.3 A component shall be used in accordance with its recognized rating established for the intended conditions of use. 2.1.4 Specic components are recognized as being incomplete in construction features or restricted in performance capabilities. Such components are intended for
44、 use only under limited conditions, such as certain temperatures not exceeding specied limits, and shall be used only under those specic conditions for which they have been recognized. 2.2 Units of measurement 2.2.1 When a value for measurement is followed by a value in other units in parentheses, t
45、he rst stated value is the requirement. 2.2.2 All applicable alternating-current electrical measurements are in root-mean-square (rms) units unless otherwise stated. 2.3 Undated references 2.3.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be inter
46、preted as referring to the latest edition of that code or standard. 3 Glossary 3.1 For the purpose of this standard the following denitions apply. 3.2 FIBER Where the term ber is used, vulcanized ber is meant. 3.3 HAZARDOUS CIRCUITRY Circuitry involving a risk of electric shock as described in the L
47、eakage-Current and Shock-Current Tests, Section 36, or a risk of re as described in Risk of Fire, Section 26. 3.4 INSULATION, BASIC The insulation necessary for the proper functioning of the product and for basic protection against electric shock. 3.5 INSULATION, REINFORCED An improved basic insulat
48、ion with such mechanical and electrical qualities that it, in itself, provides the same degree of protection against electric shock as an insulation system comprising both basic insulation and supplementary insulation. 3.6 INSULATION, SUPPLEMENTARY An independent insulation provided in addition to t
49、he basic insulation to protect against electric shock in case of electrical breakdown of the basic insulation. 3.7 LOW-VOLTAGE CIRCUIT A circuit involving a peak open-circuit potential of not more than: a) The applicable values specied in Table 36.1, where wet contact is not likely to occur or b) 21.2 volts peak where wet contact is likely to occur. 3.8 ORDINARY TOOL A at-bladed or cross-recessed screwdriver or pliers. 3.9 PRODUCT, COMMERCIAL A product intended for use in commercial establishm
