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) Locations STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PER
2、MISSION FROM ULUL COPYRIGHTED 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
3、 to ANSI/UL 783 is being issued to reaffirm approval as an American National Standard. No changes in requirements are involved. The new requirements are substantially in accordance with Proposal(s) on this subject dated January 22, 2016. The revisions dated March 18, 2016 include a reprinted title p
4、age (page 1) for this Standard. 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 margin and are followed by an effective date note indicating the date
5、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 means, electronic, mechanical photocopying, recording, or otherwise without prior permiss
6、ion 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 will UL be liable for any special, incidental, consequential, indirect or similar damage
7、s, 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 possibility of such damage. In no event shall ULs liability for any damage ever exceed t
8、he 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, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resultin
9、g from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. MARCH 18, 2016 UL 783 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 18, 2016 UL 783 tr2 No Text on This
10、PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 28, 2003 (Title Page Reprinted: March 18, 2016) 1 UL 783 Standard for Electric Flashlights and Lanterns for Use in Hazardous (Classied) Locations The rst through fourth editions were
11、titled Electric 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 consis
12、ts of the Sixth Edition including revisions through March 18, 2016. The most recent designation of ANSI/UL 783 as a Reaffirmed American National Standard (ANS) occurred on March 18, 2016. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date i
13、nformation. 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
14、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 Standards and all copyrights, ownerships
15、, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2016 UNDERWRITERS LABORATORIES INC. ANSI/UL 783-2003 (R2016)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JULY 18, 2007 UL 783 2 No Text o
16、n This PageUL 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
17、, Group IIA .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
18、 Conductors .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 Di
19、sconnect Mechanism 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 Sp
20、ark-Ignition 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
21、Test .17 25 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
22、 .21 30 Temperature 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 4
23、UL COPYRIGHTED 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 1
24、8, 2007 UL 783 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
25、 A, B, C and 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 consisti
26、ng of a battery 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 lant
27、erns that are 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
28、for Electrical 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 no
29、minal barometric 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 re
30、quirements in 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 la
31、ntern is intended 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 MATER
32、IAL NOT AUTHORIZED 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
33、bulb types. 2.7 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. Valu
34、es in parentheses 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
35、.1 Class I, Zone 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 Elect
36、rical equipment 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
37、accordance with 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 PERMIS
38、SION FROM UL 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 I
39、IB 5.5.1 Electrical 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
40、 be marked in 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-emitti
41、ng diodes) and 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 BATTE
42、RY A battery 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
43、operating conditions 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
44、 COMPONENT OR 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 MATERIA
45、L NOT AUTHORIZED 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 prote
46、cted by a recess 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 o
47、f an enclosure 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
48、 ferrous metals 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
49、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 shorting between internal cells, unless the shorting does not result in an ignition source. 9.3 Where primary batteries are used in tests, fresh cells shall be used. 9.4 Where secondary batteries are used in tests, the cells shall rst be charged and discharged at least twice before any test
