1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1480A Speakers for Commercial and Professional Use STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED
2、 MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Speakers for Commercial and Professional Use, UL 1480A First Edition, Dated February 3, 2016 Summary of Topics This is the First Edition of the Standard for Safety for Speakers for
3、 Commercial and Professional Use, UL 1480A, that covers speakers intended only for commercial and professional use. The new requirements are substantially in accordance with Proposal(s) on this subject dated October 9, 2015. All rights reserved. No part of this publication may be reproduced, stored
4、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 implied warranties
5、 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, even if UL o
6、r 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 defend, indemn
7、ify, 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. FEBRUARY 3, 2016 UL 1480A tr
8、1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 3, 2016 UL 1480A tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 3, 2016 1 UL 1480A Standar
9、d for Speakers for Commercial and Professional Use Prior to this rst edition, the requirements for the products covered by this standard were included in the Standard for Speakers for Fire Alarm, Emergency, and Commercial and Professional Use, UL 1480. First Edition February 3, 2016 This ANSI/UL Sta
10、ndard for Safety consists of the First Edition. The most recent designation of ANSI/UL 1480A as an American National Standard (ANSI) occurred on February 3, 2016. ANSI approval for a standard does not include the Cover Page, Transmittal Pages and Title Page. Comments or proposals for revisions on an
11、y 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 of a Standard should be al
12、tered 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 1480A-2016UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUT
13、ION WITHOUT PERMISSION FROM UL FEBRUARY 3, 2016 SPEAKERS FOR COMMERCIAL AND PROFESSIONAL USE - UL 1480A 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
14、Units of measurement .7 2.3 Undated references .7 3 Glossary .7 4 Instructions and Drawings 9 CONSTRUCTION ASSEMBLY 5 General .10 6 Enclosures 10 6.1 General 10 6.2 Openings .11 6.3 Cast metal 15 6.4 Sheet metal 16 6.5 Nonmetallic .18 FIELD WIRING CONNECTIONS 7 General .19 8 Field-Wiring Compartment
15、s .19 9 Field-Wiring Terminals and Connectors .19 10 Leads .21 11 Grounding .21 INTERNAL WIRING AND ASSEMBLY 12 General 22 13 Separation of Circuits .22 14 Bonding for Grounding 22 COMPONENTS 15 General 23 15.1 Mounting of components 23 15.2 Insulating materials .23 15.3 Bushings 24 15.4 Flammabilit
16、y .24 16 Electrical Components .27 16.1 General .27 16.2 Switches 27 16.3 Transformers and coils 27 16.4 Printed-wiring boards .28 17 Polymeric Materials .28 18 Spacings 29 FEBRUARY 3, 2016 SPEAKERS FOR COMMERCIAL AND PROFESSIONAL USE - UL 1480A 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER RE
17、PRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 19 Operating Components 30 PERFORMANCE 20 Test Samples 30 21 Power Input Test .31 22 Component Temperature Test 33 23 Abnormal Operation Test 36 24 Mechanical Strength Tests .36 24.1 Jarring test 36 24.2 Impact test 37 24.3 Mounting/handle secure
18、ment test 38 24.4 Speaker grill test .38 25 Tip Stability Test 38 26 Vibration Test 39 27 Speaker Burnout Test .39 28 Strain-Relief Test .40 29 Dielectric Voltage-Withstand Test .40 30 Variable Ambient Tests 42 30.1 General .42 30.2 Low-temperature test .42 30.3 High-temperature test .43 30.4 Humidi
19、ty test .43 31 Water Spray Test .44 32 Gasket Testing .47 MANUFACTURING AND PRODUCTION-LINE TEST 33 Dielectric Voltage-Withstand Test .47 MARKINGS 34 General 49 UNDERWATER SPEAKERS 35 General 51 36 Construction .51 36.1 General .51 36.2 Wet-niche and no-niche speakers 51 36.3 Dry-niche speakers .52
20、37 Plastic Parts .52 38 Flexible Cords 52 39 Immersion Test .53 40 Electric Shock Current Test 53 41 Marking 56 APPENDIX A Standards for ComponentsA1 FEBRUARY 3, 2016 SPEAKERS FOR COMMERCIAL AND PROFESSIONAL USE - UL 1480A 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUT
21、ION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover speakers for indoor and/or outdoor use in dry, damp, wet, or underwater locations and are intended for one or more of the following: a) Commercial and professional audio systems providing non-emergency sound reinforceme
22、nt and reproduction in accordance with the National Electrical Code, NFPA 70 (this includes equipment for institutional, industrial use); b) Non-re emergency voice-warning systems in accordance with NFPA 70; examples of non- re emergency-warning systems include, but are not limited to: 1) Critical p
23、rocess monitoring (nuclear plant, oil renery, hazardous chemical processing); 2) Distress alert systems (help for handicapped, for life safety, for rape, for robbery); 3) Crowd control in public places (sporting arena, theater, shopping mall, transportation center); and 4) Non-re emergency voice-sys
24、tems covered by the Life Safety Code, NFPA 101. c) Underwater speakers in accordance with Article 680 of NFPA 70. An underwater speaker is not to be used in a re alarm system or as an emergency (non-re) voice-warning system. 1.2 These requirements do not cover the following: a) Speakers intended for
25、 use in hazardous locations as dened in the National Electrical Code, NFPA 70; this includes speakers tested with the requirements in the Standard for Explosion- Proof and Dust-Ignition-Proof Electrical Equipment For Use In Hazardous (Classied) Locations, UL 1203; b) Speakers intended for personal o
26、r private consumer use; this includes speakers for household/domestic use covered by the requirements in the Standard for Audio-Video Products and Accessories, UL 1492 and the Standard for Audio/Video and Musical Instrument Apparatus for Household, Commercial, and Similar General Use, UL 6500; c) Sp
27、eakers which are intended for commercial or professional audio applications and which employ integral active electronics; these products are covered in the Standard for Commercial Audio Equipment, UL 813; the Standard for Professional Video and Audio Equipment, UL 1419; and the commercial audio ampl
28、ier applications covered in UL 6500; and d) Speakers intended for security applications; these products are covered in the Standard for Local Burglar Alarm Units and Systems, UL 609; and the Standard for Household Burglar-Alarm System Units, UL 1023. FEBRUARY 3, 2016 SPEAKERS FOR COMMERCIAL AND PROF
29、ESSIONAL USE - UL 1480A 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 1.3 Speakers intended for use with re alarm systems are covered by Standard for Speakers for Fire Alarm and Signaling Systems, Including Accessories, UL 1480. Speakers
30、with integral ampliers must comply with the requirements in UL 1480 and the Standard for Ampliers for Fire Protective Signaling Systems, UL 1711. 1.4 Speakers intended for use with emergency and non-emergency systems and having integral ampliers must comply with this standard in addition to the requ
31、irements in the Standard for General-Purpose Signaling Devices and Systems, UL 2017. 1.5 Speakers intended for use in air-handling spaces in accordance with Installation of Air Conditioning and Ventilating Systems, NFPA 90A, shall comply with the requirements in this standard and the requirements in
32、 the Standard for Fire Test for Heat and Visible Smoke Release for Discrete Products and Their Accessories Installed in Air-Handling Spaces, UL 2043. 2 General 2.1 Components 2.1.1 Except as indicated in 2.1.2, a component of a product covered by this standard shall comply with the requirements for
33、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 feature or characteristic not required in the application of the component in
34、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 components are incomplete in construction features or restricted in performance capa
35、bilities. 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. FEBRUARY 3, 2016 SPEAKERS FOR COMMERCIAL AND PROFESSIONAL USE - UL 1480A 6UL COPYRIGHTED MATERIAL NOT AUTHORI
36、ZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.2 Units of measurement 2.2.1 Unless otherwise indicated, all voltage and current values mentioned in this standard are rms. 2.2.2 Values stated without parentheses are the requirement. Values in parentheses are explanatory or
37、approximate information. 2.3 Undated references 2.3.1 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 standard. 3 Glossary 3.1 For the purpose of this standard, the following denitions
38、apply. 3.2 AUDIO CIRCUITS (HIGH-VOLTAGE) Commercial or professional speakers for connection in accordance with Article 640 of the National Electrical Code, ANSI/NFPA 70, that are used for music or voice communication and are rated more than 120 volts. 3.3 AUDIO CIRCUITS (LOW-VOLTAGE) Commercial or p
39、rofessional speakers for connection in accordance with Article 640 of the National Electrical Code, ANSI/NFPA 70, that are used for music or voice communication and are rated 120 volts or less. 3.4 BI-AMPLIFIED SYSTEMS Systems that employ two or more speakers that are cross-overed before the amplier
40、 with separate ampliers powering the low and high frequency transducers. 3.5 CHEESECLOTH INDICATORS Cheesecloth used for tests shall be untreated cotton cloth running 14 15 square yards per pound (26 28 square meters per kilogram) and having what is known in the trade as a count of 32 by 28 . 3.6 CR
41、ITICAL COMPONENT With regard to the risk of re and electric shock, a critical component is a part that: a) Encloses a high-voltage part(s); b) Is capable of coming into contact with a source of ignition; c) Supports a live part; or d) Is capable of coming into contact with a live part. 3.7 DISTRIBUT
42、ED AUDIO SYSTEMS Distributed audio systems, also referred to as constant voltage systems, provide a constant voltage from the amplier to the speaker and usually have long wire runs between the amplier and the speakers. Typical distributed audio voltages are 25, 70, or 100 volts. 3.8 ELECTRICAL CIRCU
43、IT (HIGH-VOLTAGE) A circuit other than audio involving a potential of not more than 300 volts and having circuit characteristics in excess of those of a low-voltage circuit. 3.9 ELECTRICAL CIRCUIT (LIVE PART) A conductive part of a circuit carrying (or having the potential to carry) voltage, power,
44、or current of sufficient magnitude to present a risk of re or electric shock. FEBRUARY 3, 2016 SPEAKERS FOR COMMERCIAL AND PROFESSIONAL USE - UL 1480A 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.10 ELECTRICAL CIRCUIT (LOW-VOLTAGE) A c
45、ircuit other than audio involving a potential of not more than 30 volts alternating-current (AC) rms, 42.4 volts direct-current (DC) or AC peak. 3.11 FIELD-WIRING LEADS Leads to which electrical connections are made in the eld. 3.12 FIELD-WIRING TERMINALS Terminals to which electrical connections ar
46、e made in the eld. 3.13 INSTALLATION LOCATIONS: a) Dry A location with a controlled ambient that is not subject to dampness or wetness. b) Damp A location protected from sun, rain, and water, but subject to moisture (such as basements, barns, cold-storage warehouses, greenhouses, indoor swimming fac
47、ilities, and similar locations); may also include partially protected locations under canopies, marquees, roofed open porches, and similar spaces. c) Wet A location subject to rain and the spray of non-corrosive and non-ammable liquids that may become saturated with water or that is unprotected from
48、 the weather. d) Underwater A location such as a swimming pool or diving tank. 3.14 NON-DISTRIBUTED AUDIO (LOW IMPEDANCE) SYSTEMS Non-distributed audio systems are low impedance systems with short wire runs between the amplier and the speaker. Typical impedance for these systems are 4, 8, or 16 ohms
49、. 3.15 PINK NOISE Broadband noise whose energy content is inversely proportional to frequency. 3.16 PRODUCT Any type of speaker covered by the Scope of these requirements. 3.17 RISK OF ELECTRIC SHOCK A risk of electric shock is considered to exist within a circuit unless that circuit meets one of the following criteria: a) The circuit is supplied by an isolating source, such that the maximum open-circuit voltage potential available to the circuit is 30 V AC rms, 42.4
