1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 783 Electric Flashlights and Lanterns for Use in Hazardous (Classied) LocationsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL CO
2、PYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Electric Flashlights and Lanterns for Use in Hazardous (Classied) Locations, UL 783 Sixth Edition, Dated April 28, 2003 Summary of Topics This revision to ANSI/UL 783 is b
3、eing issued to reect the reaffirmation of the ANSI approval. No changes in requirements are involved. 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
4、margin and are followed by an effective date note indicating the date of publication or the date on which the changed requirement becomes effective. The revisions dated November 30, 2011 include a reprinted title page (page 1) for this Standard. All rights reserved. No part of this publication may b
5、e reproduced, 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, t
6、he implied 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 S
7、tandard, 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 ag
8、ree to 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 req
9、uirements 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
10、effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. NOVEMBER 30, 2011 UL 783 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 30, 2011 UL 783 tr2 No Text on This PageUL COPYRIGHTED
11、MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 28, 2003 (Title Page Reprinted: November 30, 2011) 1 UL 783 Standard for Electric Flashlights and Lanterns for Use in Hazardous (Classied) Locations The rst through fourth editions were titled Electric
12、Flashlights and Lanterns for Use in Hazardous Locations, Class I, Groups C and D. First Edition May, 1965 Second Edition January, 1971 Third Edition April, 1979 Fourth Edition November, 1983 Fifth Edition July, 1993 Sixth Edition April 28, 2003 This ANSI/UL Standard for Safety consists of the Sixth
13、Edition including revisions through November 30, 2011. The most recent designation of ANSI/UL 783 as a Reaffirmed American National Standard (ANS) occurred on November 30, 2011. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information
14、. The Department of Defense (DoD) has adopted UL 783 on December 13, 1983. The publication of revised pages or a new edition of this Standard will not invalidate the DoD adoption. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be
15、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 Standards and all copyrights, ownerships, and righ
16、ts regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2011 UNDERWRITERS LABORATORIES INC. ANSI/UL 783-2003 (R2011)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JULY 18, 2007 UL 783 2 No Text on This Pag
17、eUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS PART 1 GENERAL REQUIREMENTS INTRODUCTION 1 Scope .7 2 General 7 3 Units of Measurement .8 4 Undated References 8 5 Class I, Zone, and Group Equivalency .8 5.1 Class I, Zone 1, Group I
18、IA .8 5.2 Class I, Zone 1, Group IIB .8 5.3 Class I, Zone 1, Group IIC .8 5.4 Class I, Zone 2, Group IIA .9 5.5 Class I, Zone 2, Group IIB .9 5.6 Class I, Zone 2, Group IIC .9 6 Denitions 9 CONSTRUCTION 7 Enclosure .10 8 Protection Against Corrosion 10 9 Cells and Batteries .10 10 Internal Conductor
19、s .11 MARKING 11 Details .11 PART II DIVISION 1 FLASHLIGHTS WITH LAMP DISCONNECT MECHANISMS SPECIFIC REQUIREMENTS CONSTRUCTION 12 Filament Disconnect Mechanism 13 PERFORMANCE 13 Lamp Bulb Breakage Tests 14 14 Spark Ignition Test 14 15 Temperature Tests 14 16 Test on Nonmetallic Filament Disconnect M
20、echanism .14 17 Drop Test 15 JULY 18, 2007 UL 783 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PART III DIVISION 1 FLASHLIGHTS WITHOUT LAMP DISCONNECT MECHANISMS SPECIFIC REQUIREMENTS CONSTRUCTION 18 General 15 PERFORMANCE 19 Spark-Ignit
21、ion Test 15 20 Temperature Tests 15 21 Mechanical Tests .16 21.1 General .16 21.2 Impact Test 16 21.3 30-Foot Drop Test 16 PART IV FLASHLIGHTS AND LANTERNS FOR USE IN DIVISION 2 LOCATIONS SPECIFIC REQUIREMENTS CONSTRUCTION 22 General 17 PERFORMANCE 23 Spark-Ignition Test 17 24 Temperature Test .17 2
22、5 Drop Test 17 26 Dust-Tight Enclosure Test .17 PART V PERFORMANCE TESTS 27 Lamp Bulb Breakage Test .18 28 Spark-Ignition Tests .19 28.1 General .19 28.2 Test Apparatus 19 28.3 Gas Mixtures 20 28.4 Verication of Spark Test Apparatus 20 29 Test on Nonmetallic Filament Disconnect Mechanism .21 30 Temp
23、erature Tests 21 31 Grain Dust Temperature Test 22 32 30-Foot Drop Test 22 33 3-Foot Drop Test .23 34 Impact Test 23 35 Thermal Endurance to Heat 23 36 Thermal Endurance to Cold 23 37 Dust-Tight Enclosure Test (Atomized Water Spray) .24 38 Battery Output Test .24 APRIL 28, 2003 UL 783 4UL COPYRIGHTE
24、D MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 28, 2003 UL 783 5 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This page intentionally left blank. JULY 18, 2007 UL 78
25、3 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PART 1 GENERAL REQUIREMENTS INTRODUCTION 1 Scope 1.1 These requirements cover battery-operated ashlights and lanterns for use in hazardous locations, Class I, Division 1, Groups A, B, C and
26、D; Class I, Division 2, Groups A, B, C, and D; Class II, Division 1, Groups F and G; and Class II, Division 2, Groups F and G as dened in the National Electrical Code, NFPA 70. 1.2 These requirements apply to complete products with self-contained batteries, and include products consisting of a batte
27、ry pack assembly and light assembly with interconnecting exible cord. 1.3 These requirements do not cover ashlights and lanterns of the explosion-proof type or other type of construction providing protection against ignition of ammable gas- or vapor-air atmospheres. Flashlights and lanterns that are
28、 intrinsically safe for Class I, Division 1 are covered by the Standard for Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, II, and III, Division 1, Hazardous (Classied) Locations, UL 913. Flashlights designed for Zones 0, 1, and 2 are covered by the Standards for Electrica
29、l Apparatus for Explosive Gas Atmospheres, UL 60079 series. 1.4 These requirements cover equipment for use under the following atmospheric conditions: a) A minimum ambient temperature of minus 25C (minus 13F); b) An oxygen concentration not greater than 21 percent by volume; and c) A nominal baromet
30、ric pressure of one atmosphere. 2 General 2.1 Flashlights or lanterns for Division 1 that employ a lamp disconnect mechanism must meet the requirements in Part II of this standard. 2.2 Flashlights or lanterns for Division 1 that do not employ a lamp disconnect mechanism must meet the requirements in
31、 Part III of this standard. 2.3 Flashlights or lanterns for Division 2 must meet the requirements in Part IV of this standard. 2.4 A ashlight or lantern for Class II, Division 1 locations shall also comply with the requirements for Class I, Division 1, Group D. 2.5 If a ashlight or a lantern is inte
32、nded for use with different types of batteries, such as with carbon-zinc or alkaline types, tests shall be conducted using each type of battery, unless tests on a specic battery type can be considered representative of all other battery types. APRIL 28, 2003 UL 783 7UL COPYRIGHTED MATERIAL NOT AUTHO
33、RIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.6 If a ashlight or a lantern is intended for use with different types of bulbs, tests shall be conducted using each type of bulb, unless tests on a specic bulb type can be considered representative of all other bulb types. 2
34、.7 Electrical components other than batteries, lamps and switches used in the construction of a ashlight or lantern shall be provided with additional explosion protection suitable for the application. 3 Units of Measurement 3.1 Values stated without parentheses are the requirement. Values in parenth
35、eses are explanatory or approximate information. 4 Undated References 4.1 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. 5 Class I, Zone, and Group Equivalency 5.1 Class I, Z
36、one 1, Group IIA 5.1.1 Electrical equipment intended to be marked in accordance with 11.2 shall comply with all the requirements of this standard for ashlights and lanterns for use in Class I, Division 1, Group D hazardous (classied) locations. 5.2 Class I, Zone 1, Group IIB 5.2.1 Electrical equipme
37、nt intended to be marked in accordance with 11.3 shall comply with all the requirements of this standard for ashlights and lanterns for use in Class I, Division 1, Group C hazardous (classied) locations. 5.3 Class I, Zone 1, Group IIC 5.3.1 Electrical equipment intended to be marked in accordance wi
38、th 11.4 shall comply with all the requirements of this standard for ashlights and lanterns for use in Class I, Division 1, Groups A and B hazardous (classied) locations. APRIL 28, 2003 UL 783 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL
39、5.4 Class I, Zone 2, Group IIA 5.4.1 Electrical equipment intended to be marked in accordance with 11.5 shall comply with all the requirements of this standard for ashlights and lanterns for use in Class I, Division 2, Group D hazardous (classied) locations. 5.5 Class I, Zone 2, Group IIB 5.5.1 Elec
40、trical equipment intended to be marked in accordance with 11.6 shall comply with all the requirements of this standard for ashlights and lanterns for use in Class I, Division 2, Group C hazardous (classied) locations. 5.6 Class I, Zone 2, Group IIC 5.6.1 Electrical equipment intended to be marked in
41、 accordance with 11.7 shall comply with all the requirements of this standard for ashlights and lanterns for use in Class I, Division 2, Groups A and B hazardous (classied) locations. 6 Denitions 6.1 LAMP A source of visible light. Examples include incandescent lamps, LEDs (light-emitting diodes) an
42、d clusters of LEDs. 6.2 LAMP DISCONNECT MECHANISM A mechanism that disconnects an incandescent lamp from its supply circuit and prevents the ignition of a specied surrounding ammable gas or vapor-air atmosphere when the glass bulb surrounding the lamp lament is broken. 6.3 PRIMARY BATTERY A battery
43、that can be discharged only once. It is not designed to be rechargeable. 6.4 SECONDARY BATTERY A battery that is intended to be discharged and recharged multiple times. 6.5 NONINCENDIVE CIRCUIT A circuit, other than eld wiring, in which any arc of thermal effect produced under intended operating con
44、ditions of the equipment is not capable, under specied test conditions, of igniting the ammable gas-air, vapor-air, or dust-air mixture. 6.6 MAXIMUM SERVICE TEMPERATURE The highest temperature reached on a specied component of the device under normal operating conditions. 6.7 PROTECTIVE COMPONENT OR
45、 ASSEMBLY A component or assembly that is so unlikely to become defective in a manner that will lower the ignition safety of the circuit that it may be considered not subject to fault when analysis or tests for ignition safety are conducted. APRIL 28, 2003 UL 783 9UL COPYRIGHTED MATERIAL NOT AUTHORI
46、ZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONSTRUCTION 7 Enclosure 7.1 Except as noted in 7.2, exposed external surfaces of the enclosure and parts shall be made of nonsparking material such as brass, aluminum or polymeric materials unless the part is protected by a rec
47、ess or by a guard. 7.2 An exposed external surface of an enclosure or part may be of a sparking material if an investigation indicates that percussion sparks capable of igniting a ammable atmosphere are unlikely. 7.3 Polymeric materials used in the construction of an enclosure or part of an enclosur
48、e shall possess sufficient strength, rigidity and properties as to be suitable for the application. 8 Protection Against Corrosion 8.1 All metallic parts of a ashlight or lantern shall be: a) Made of corrosion-resistant material such as aluminum, brass, or stainless steel, or b) Made of ferrous meta
49、ls other than stainless steel protected against corrosion by, for example, zinc or cadmium coating, plating, enameling, painting, varnishing or lacquering. 9 Cells and Batteries 9.1 Battery cells shall be of a type from which there can be no spilling of electrolyte or shall be enclosed to prevent contact between the electrolyte and circuits and components where safety can be affected. 9.2 The ashlight or lantern shall be constructed to prevent
