1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1419 Professional Video and Audio Equipment STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERI
2、AL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Professional Video and Audio Equipment, UL 1419 Fourth Edition, Dated February 26, 2016 Summary of Topics This revision is being issued to indicate the most recent designation of ANSI/UL
3、1419 as a Reaffirmed American National Standard (ANS). The revised requirements are substantially in accordance with Proposal(s) on this subject dated March 11, 2016. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin
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6、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, regardless of the form of the claim. Users o
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8、onic Standard on the purchasers computer system. APRIL 27, 2016 UL 1419 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 27, 2016 UL 1419 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DIST
9、RIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 26, 2016 (Title Page Reprinted: April 27, 2016) 1 UL 1419 Standard for Professional Video and Audio Equipment First Edition November, 1992 Second Edition March, 1997 Third Edition May, 2011 Fourth Edition February 26, 2016 This ANSI/UL Standard for Safety
10、 consists of the Fourth Edition including revisions through April 27, 2016. The most recent designation of ANSI/UL 1419 as an American National Standard (ANSI) occurred on April 27, 2016. ANSI approval for a standard does not include the Cover Page, Transmittal Pages and Title Page. Comments or prop
11、osals 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 Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy o
12、f 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 2016 UNDERWRITERS LABORATORIES INC. ANSI/UL 1419-2011 (R2016)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR F
13、URTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 27, 2016 PROFESSIONAL VIDEO AND AUDIO EQUIPMENT - UL 1419 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .7 2 Glossary
14、.7 3 Components 10 4 Units of Measurement 10 5 References 10 CONSTRUCTION 6 General .10 6.1 Details .10 6.2 Systems 11 7 Frame and Enclosure 11 7.1 General 11 7.2 Doors or covers .12 7.3 External materials Option A (Construction) 12 7.4 Internal materials Option A (Construction) 13 7.5 Enclosure ope
15、nings 13 7.6 Louvers 14 7.7 Enclosure bottom openings .15 7.8 Top openings .18 7.9 Material requirements Option B (Performance) 18 8 Equipment Intended to be Installed in Restricted Access Areas 19 9 Equipment Intended to be Installed in Permanent Outdoor Locations .20 10 Mechanical assembly .21 11
16、Supply Connections Permanently Connected Equipment .21 11.1 General .21 11.2 Separation of circuits .22 11.3 Wiring terminals 23 12 Audio Output Connections .24 13 Cord-Connected Equipment 25 13.1 Cords and plugs .25 13.2 Equipment coupler .26 13.3 Cord strain relief .26 13.4 Cord and wire routing .
17、27 13.5 Attachment plug 27 13.6 Bushings 27 14 Auxiliary Power Connections .28 15 Printed Wiring Boards .28 16 Receptacles 28 17 Switches .29 18 Protective Devices 29 18.1 General .29 18.2 Fuses .29 18.3 Battery circuit protection .30 19 Across-the-Line and Isolating Components .30 20 Batteries .30
18、20.1 General .30 20.2 Batteries containing liquids or gases 31 FEBRUARY 26, 2016 PROFESSIONAL VIDEO AND AUDIO EQUIPMENT - UL 1419 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 20.3 Lithium batteries .31 21 Motors .31 22 Lasers and X- Radi
19、ation .31 23 Sleeving, Tape, Tubing, and Wire Insulation .31 23.1 General .31 23.2 Mechanical protection .32 24 Remote Control and Interconnecting Cables .33 25 Splices and Connections 33 25.1 General .33 25.2 Wire wrapped connections 34 26 Spacings 35 27 Grounding .38 27.1 General .38 27.2 Cord-con
20、nected equipment 39 27.3 Permanently connected equipment .39 28 Risk of Electric Shock .41 28.1 Accessible live parts 41 29 Leakage Current 41 30 Risk of Fire 42 31 Accessibility 42 31.1 General .42 31.2 Guard and barrier insulating material .44 32 Interlocks 45 33 Servicing 45 34 Protection During
21、User Servicing .46 35 Protection of Service Personnel For Equipment Not Provided With Complete Enclosures 47 36 Implosion Protection 47 36.1 General .47 36.2 Mechanical protection .47 36.3 Cathode-ray tube (CRT) enclosure opening .48 36.4 CRT neck protection 48 PERFORMANCE 37 General 49 37.1 Details
22、 49 37.2 Voltmeters .49 37.3 Leads, connectors, and components 49 37.4 Cheesecloth indicators 49 37.5 Supply circuit voltage and frequency 50 38 Power Input Test .51 39 X-Radiation Test 53 39.1 General .53 40 Grounding Impedance Test 54 41 Equipment Leakage Current Test .54 41.1 General .54 41.2 Lea
23、kage current measurements for equipment with multiple (redundant) power supplies .58 42 Temperature Test .58 42.1 General .58 42.2 Thermal equilibrium .60 42.3 Equipment test conditions .60 42.4 Equipment operating conditions 60 FEBRUARY 26, 2016 PROFESSIONAL VIDEO AND AUDIO EQUIPMENT - UL 1419 4UL
24、COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 42.5 Thermocouples 61 42.6 Winding temperature measurement .61 42.7 Ambient temperatures 62 42.8 Rack mounted equipment .62 43 Dielectric Voltage-Withstand Test .63 43.1 General .63 43.2 Breakdown
25、 65 44 Abnormal Operation Test 65 44.1 General .65 44.2. Supply circuit fuse rating 65 44.3 Equipment supporting surface .65 44.4 Cheesecloth indicator .65 44.5 Fuse indicator .65 44.6 User-removable parts .65 44.7 Polarization 66 44.8 Test duration 66 44.9 Unacceptable conditions 66 44.10 Circuit i
26、nterruption .67 45 Tests for Remote Control and Interconnecting Cables .67 45.1 Cable exing test .67 45.2 Cable crush test 67 46 Strain Relief Test .67 46.1 Power supply cord and interconnecting cable 67 47 Battery and Battery Circuit Tests Electrical .68 47.1 Battery overcharge test .68 47.2 Batter
27、y discharge test .68 48 Battery Tests Mechanical 68 48.1 Battery drop test .68 48.2 Battery oven test .68 48.3 Battery test results .69 49 Battery Supply Test .69 50 Vacuum Tube Filament Short Circuit Test .69 51 Test for Limited-Power Circuit 69 52 Transformer Short Circuit and Overload Tests 70 53
28、 Power Supply Test 71 54 Component Abnormal Operation Test .71 55 Multiple Voltage Equipment Test 72 56 Ground Printed Wiring Board (PWB) Trace Test 72 57 Strength of Enclosure Tests 73 57.1 Mechanical tests general 73 57.2 Enclosure loading 74 57.3 Pressure 74 57.4 Impact 75 57.5 Mold stress relief
29、 test .76 58 Personal Injury Tests 77 58.1 General .77 58.2 Force stability test 77 58.3 Cart or stand loading .77 58.4 Handle strength 77 58.5 Mounting means tests 78 59 Audio Output Maximum Voltage Test 78 MANUFACTURING AND PRODUCTION-LINE TESTS FEBRUARY 26, 2016 PROFESSIONAL VIDEO AND AUDIO EQUIP
30、MENT - UL 1419 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 60 Tests by the Manufacturer .79 60.1 Production-line dielectric voltage-withstand test 79 60.2 A-C production-line test .80 60.3 D-C production-line test .81 60.4 Continuity of
31、 grounding connection .81 60.5 Polarization verication 81 MARKINGS 61 General 81 62 Marking Details .82 62.1 Equipment identication .82 62.2 Electrical rating 82 62.3 Factory identication 83 62.4 Accessory identication .83 62.5 Parallel-slot-type receptacle .83 62.6 Nonstandard-type receptacle 83 62
32、.7 X-radiation 84 62.8 Auxiliary power connections .84 62.9 Multiple-voltage equipment 85 62.10 Supply circuit voltage selector 85 62.11 Service protection .85 62.12 Fuse rating .85 62.13 Operator replaceable fuse replacement caution marking .86 62.14 High leakage current marking .87 62.15 Multiple
33、power supply cord de-energization marking .87 62.16 Audio output 87 62.17 High temperature heat sink .88 62.18 Multiple (redundant) power supply marking .88 62.19 Mounting surface 89 62.20 Restricted access area equipment service protection 89 62.21 Equipment rack system 89 62.22 Double-insulated eq
34、uipment 89 INSTRUCTIONS 63 General 89 64 Installation Instructions 90 APPENDIX A Standards for ComponentsA1 FEBRUARY 26, 2016 PROFESSIONAL VIDEO AND AUDIO EQUIPMENT - UL 1419 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Sc
35、ope 1.1 These requirements cover video and audio equipment operated and maintained by trained personnel under the conditions of controlled access. 1.2 These requirements cover such equipment as video tape recorders, audio/video editing equipment, audio/video receiving and processing equipment, signa
36、l transmission equipment, television cameras, video digitizers, video monitors, metering equipment and similar equipment. 1.3 This Standard also covers auxiliary equipment and accessories which by themselves may not perform the desired function of the equipment outlined in 1.2 but are used in additi
37、on to or as a supplement to the basic equipment (remote controls, convertors, stands, etc.). 1.4 These requirements cover equipment rated 600 volts or less for use in accordance with the National Electrical Code, ANSI/NFPA 70. 1.5 Equipment employing circuits that are intended to connect directly to
38、 a telecommunications network also comply with the applicable requirements in the following relevant standards: a) Standard for Information Technology Equipment Safety Part 1: General Requirements, UL 60950-1 b) Standard for Audio, Video, and Similar Electronic Apparatus-Safety Requirements, UL 6006
39、5 c) Standard for Audio/Video, Information and Communication Technology Equipment Part 1: Safety Requirements, UL 62368-1 1.6 These requirements do not cover products that are intended for household or commercial use. 2 Glossary 2.1 For the purpose of this Standard the following denitions apply. 2.2
40、 ACCESSIBLE PART A part so located that it can be contacted by means of a probe (see Figure 31.1). 2.3 ADJUSTABLE CONTROL A control provided for making adjustments necessary to render the equipment capable of performing its intended functions. 2.4 BRANCH CIRCUIT A branch circuit is that portion of t
41、he building wiring system beyond the nal overcurrent device on the power distribution panel protecting the circuit to the eld wiring terminals in permanently connected equipment or to the receptacle outlet for cord connected equipment. 2.5 CART A stand (see Personal Injury Tests, Section 58) provide
42、d with casters, wheels, or rollers to make it mobile. FEBRUARY 26, 2016 PROFESSIONAL VIDEO AND AUDIO EQUIPMENT - UL 1419 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.6 CASTER Any roller or swiveled wheel attached to a cart, stand, or e
43、quipment that makes the cart, stand, or equipment mobile. 2.7 CLEARANCE DISTANCE The shortest distance measured through air between conductive parts. 2.8 CREEPAGE DISTANCE The shortage distance measured over the surface of insulation between conductive parts. 2.9 CORD-CONNECTED EQUIPMENT Equipment i
44、ntended to be connected to the branch circuit by means of a exible cord. 2.10 FIBER Where the term ber is used in this standard to denote a material usually used as electrical insulation, vulcanized ber is meant. 2.11 FIELD-WIRING TERMINAL Any terminal to which a supply or other wire can be connecte
45、d by an installer in the eld is a eld wiring terminal unless the wire is provided as part of the equipment and a connector, soldering lug, soldering loop, crimped eyelet, pressure terminal, or other means for making the connection is factory-assembled to the wire. 2.12 GROUND Earth ground, unless ot
46、herwise specied. 2.13 HAND-HELD EQUIPMENT Portable equipment that is held in one or both hands during normal use. 2.14 HANDLE A part that is designed to be grasped by the hand or used by hand or machine for lifting or moving a product. 2.15 INTERLOCK A mechanism that deenergizes parts involving a ri
47、sk of electric shock or that stops moving parts before they become accessible to the user when the enclosure of the part is opened or a cover is removed. 2.16 LEAKAGE CURRENT All currents, including capacitively coupled currents that ow through a person upon contact between accessible conductive sur
48、faces of a product and ground or other accessible surfaces of a product. 2.17 MEASUREMENT INDICATION UNIT (MIU) The output voltage across the meter in the measurement instrument in Figure 41.2, in millivolts RMS, divided by 500 ohms. MIUs are related to physiological effects when electric current ow
49、s through the human body. At low frequency, the number of MIUs that is obtained by dividing the output voltage, in millivolts, by 500 ohms, equals the current, in milliamperes, through the measuring instrument. The reading may not be a direct indication of the RMS or other common amplitude quantier of leakage current when the leakage current is of a complex waveform or frequency other than 50 or 60 Hz. At high frequency, the meter indication of MIUs is less than
