1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 924 Emergency Lighting and Power Equipment STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIA
2、L NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Emergency Lighting and Power Equipment, UL 924 Tenth Edition, Dated May 9, 2016 Summary of Topics This revision is being issued to incorporate the following changes: Addition of a denition
3、 and requirements for directly controlled luminaires Test switch exemption for equipment with self-test/self-diagnostic capability Clarication of battery standard references and compliance Separate shipment of batteries Revision to the battery discharge test Adjustment of the emergency luminaire and
4、 battery pack maximum mounting height identication Simplify the damp and wet location equipment humidity conditioning Clarify the indoor wet location equipment marking Clarications for minimum light output (Supplement SG) The new/revised requirements are substantially in accordance with Proposal(s)
5、on this subject dated September 30, 2016 and January 20, 2017. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or t
6、ransmitted 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 of merchantability or tnes
7、s 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 or an authorized UL represen
8、tative 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, indemnify, and hold UL harmless f
9、rom 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. MARCH 8, 2017 UL 924 tr1UL COPYRIGHTED MATERIAL NOT AUT
10、HORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 8, 2017 UL 924 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 9, 2016 (Title Page Reprinted: March 8, 2017) 1 UL 924 Standard for
11、Emergency Lighting and Power Equipment The rst, second, third, and fth editions were titled Standard for Emergency Lighting Equipment. First Edition December, 1958 Second Edition May, 1973 Third Edition October, 1973 Fourth Edition April, 1977 Fifth Edition February, 1979 Sixth Edition March, 1984 S
12、eventh Edition November, 1990 Eighth Edition March, 1995 Ninth Edition February, 2006 Tenth Edition May 9, 2016 This ANSI/UL Standard for Safety consists of the Tenth Edition including revisions through March 8, 2017. The most recent designation of ANSI/UL 924 as an American National Standard (ANSI)
13、 occurred on March 8, 2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages and Title Page. The Department of Defense (DoD) has adopted UL 924 on November 14, 1982. The publication of revised pages or a new edition of this Standard will not invalidate the DoD adoption
14、. 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 https:/. ULs Standards for Safety are copyrighted by UL. Neither a printed no
15、r 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 2017 UNDERWRITERS LABORATORIES INC. ANSI/UL 924-2017UL COPYRIGHTED MATERIAL NOT AUTHOR
16、IZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 9, 2016 EMERGENCY LIGHTING AND POWER EQUIPMENT - UL 924 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .9 2 Ref
17、erences 10 3 Resistance to Environmental Conditions 10 4 Glossary 10 5 Components 15 6 Units of Measurement 17 7 Radioactive Energy Sources 17 CONSTRUCTION 8 Frame and Enclosure 17 8.1 General 17 8.2 Uninsulated live parts 17 8.3 Metallic enclosures 19 8.4 Nonmetallic enclosures .22 8.5 Enclosure op
18、enings 22 8.6 Enclosure covers 24 9 Environmental Rating .24 10 Polymeric Materials .25 10.1 General .25 10.2 Enclosures 25 10.3 Mechanical support .26 10.4 Barriers .26 10.5 Grounding or bonding means .26 10.6 Structural support 27 11 Mounting Means 27 12 Corrosion Resistance .27 13 Insulation Mate
19、rial 28 14 Mounting of Parts .28 15 Operating Mechanisms 29 16 Current-Carrying Parts 29 17 Installation Wiring Connections .29 17.1 General .29 17.2 Terminals .30 17.3 Field-wiring leads .30 17.4 Polarity identication 31 17.5 Termination of wiring systems .31 17.6 Knockouts .32 18 Cord-Connected Un
20、it Equipment and Luminaires .33 18.1 General .33 18.2 Flexible cord .33 18.3 Alternative connection 34 18.4 Attachment plug 34 18.5 Grounding .34 18.6 Strain relief 34 18.7 Push-in prevention .35 18.8 Bushings 35 19 Internal Wiring 36 MAY 9, 2016 EMERGENCY LIGHTING AND POWER EQUIPMENT - UL 924 3UL C
21、OPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 19.1 Wires .36 19.2 Wireways 37 19.3 Electrical connections .37 19.4 Separation of circuits .38 19.5 Conductor secureness 39 20 Grounding .39 21 Bonding of Internal Parts 41 22 Batteries .42A 23 El
22、ectronic Circuits .44 24 Capacitors .44 25 Lampholders .44 26 Overcurrent (Overload) Protection 44 27 Coil Windings 45 28 Derangement Signals .45 29 Test Switch 45 30 Self-Testing/Self-Diagnostic Equipment 46 31 Disconnect Switches and Fuses 46 32 Transformers .47 33 Impedance Networks 47 34 Printed
23、-Wiring Board 47 35 Motors .47 36 Equipment Using Simple Reactance Ballasts and Lamps Having Integral Starters 47 37 Spacings 48 37.1 General .48 37.2 Barriers .50 37.3 Insulating barriers 50 38 Field-Wiring Space 51 38.1 General .51 38.2 Wire-bending space 51 39 Accessibility of Insulated Current-C
24、arrying Parts 53 39.1 General 53 39.2 Accessibility determination .53 39.3 Insulated parts .53 39.4 Accessibility barriers 55 EXIT SIGN VISIBILITY 40 Exit Sign Contruction General 55 41 Text-Based Exit Signs Construction .56 42 Graphical Symbol Exit Signs Construction .60 43 Performance .63 43.1 Gen
25、eral .63 43.2 Observation visibility test 64 43.3 Luminance measurement test 67 43.4 Non-energized contrast measurement test .74 43.5 Flashing rate, light pulse duration, and duration between successive light pulse measurements .75 44 Markings .75 PERFORMANCE 45 General 77 46 Leakage Current Test .7
26、8 MAY 9, 2016 EMERGENCY LIGHTING AND POWER EQUIPMENT - UL 924 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 47 Normal Operation Test 80 48 Battery Discharge Test 81 49 Input Test 83 50 Determination of Low-Voltage, Limited-Energy Circuit
27、Status .83 51 Determination of Limiting Impedance Circuit Status .84 52 Temperature Test .85 53 Overvoltage Withstand Test 89 54 Undervoltage Recharge Capability Test .89 55 Voltage Surge Test .90 56 Dielectric Voltage-Withstand Test .93 57 Conformal Coating Test Program I 94 57.1 General .94 57.2 C
28、oating on printed-wiring board in lieu of spacings .94 58 Conformal Coating Test Program II .94 58.1 General .94 58.2 Samples 94 58.3 Room ambient conditioning 95 58.4 Thermal conditioning 95 58.5 Dielectric voltage-withstand test for conformal coating 97 59 Strain Relief Test .97 59.1 General .97 5
29、9.2 Strain .97 60 Conductor Secureness Test 97 61 Overtinned Wire Flexibility Test .97 62 Bonding Conductor Test .98 63 Grounding Continuity Test .99 64 Security of Knockout Test 99 65 Swivel Torsion and Pull Test .99 66 Component Breakdown Test 100 66.1 General 100 66.2 General test conditions 101
30、67 Humidity Conditioning Test .102 68 Impact Test .102 69 Mechanical Support Static Load Test 103 70 Barrier Strength Test .104 RATINGS 71 General 104 72 Standby Operation .105 MARKINGS 73 General 105 73.1 Details .105 73.2 Fuse replacement 110A INSTRUCTION MANUAL 74 General 110B 75 Safety Instructi
31、ons .112 76 Other Instructions 113 MAY 9, 2016 EMERGENCY LIGHTING AND POWER EQUIPMENT - UL 924 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL LOW-FREQUENCY INVERTERS 77 General 114 78 Performance 114 78.1 Output load power factor test .114
32、 78.2 Battery discharge test .115 78.3 Output voltage and frequency test .115 HIGH-FREQUENCY INVERTERS 79 General 115 80 Performance .115 80.1 General 115 80.2 Output voltage and current test .116 80.3 Abnormal conditions test .117 81 Marking 118 SUPPLEMENT SA - FIELD INSTALLED LUMINAIRE EMERGENCY B
33、ATTERY PACKS SA1 General SA1 SA2 Mounting and Installation .SA1 SA3 Performance SA1 SA4 Marking and Instructions SA2 SA5 Instruction Manual .SA2 SUPPLEMENT SB - EMERGENCY LIGHTING AND POWER EQUIPMENT FOR USE IN DAMP LOCATIONS SB1 General SB1 SB2 Construction Mechanical SB1 SB3 Construction Electrica
34、l SB1 SB4 Performance Humidity Conditioning SB2 SB5 Markings .SB2 SUPPLEMENT SC - EMERGENCY LIGHTING AND POWER EQUIPMENT FOR USE IN WET LOCATIONS SC1 General SC1 SC2 Construction Mechanical SC1 SC2.1 Corrosion protection .SC1 SC2.2 Enclosures .SC2 SC2.3 Gaskets and bushings .SC3 SC2.4 Openings SC3 S
35、C2.5 Polymeric water shields SC4 SC3 Construction Electrical SC4 SC4 Performance SC5 SC4.1 General SC5 MAY 9, 2016 EMERGENCY LIGHTING AND POWER EQUIPMENT - UL 924 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SC4.2 Tests required SC5 SC4.
36、3 General test conditions SC6 SC4.4 General test results SC6 SC4.5 Sprinkler test .SC7 SC4.6 Rain test SC10 SC4.7 Thermal conditioning .SC12 SC4.8 Gasket adhesion test .SC13 SC4.9 Humidity conditioning .SC13 SC5 Markings SC13 SUPPLEMENT SD - ALTERNATIVE REQUIREMENTS FOR TRANSFORMERS INTRODUCTION SD1
37、 Scope SD1 CONSTRUCTION SD2 General SD1 PERFORMANCE SD3 General SD2 SD4 Dielectric Voltage-Withstand Test SD3 SD5 Induced Potential Test .SD3 SD6 Abnormal Tests .SD4 SD6.1 General SD4 SD6.2 Transformer burnout test .SD5 SD6.3 Transformer overload test SD6 SD7 Test on Transformer Insulating Materials
38、 .SD6 SUPPLEMENT SE - EXIT SIGN RETROFIT KITS INTRODUCTION SE1 Scope SE1 SE2 Glossary SE1 SE3 Construction SE2 SE3.1 General SE2 SE3.2 Frame and enclosure SE3 SE3.3 Mounting .SE3 SE3.4 Wiring and connections SE4 SE3.5 Assembly SE4 SE3.6 Grounding SE5 SE3.7 Adapter SE5 SE3.8 Diffuser SE6 SE4 Performa
39、nce .SE7 MAY 9, 2016 EMERGENCY LIGHTING AND POWER EQUIPMENT - UL 924 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SE4.1 Trial installation test .SE7 SE4.2 Input test .SE8 SE4.3 Temperature test SE9 SE4.4 Conductor secureness test .SE9 SE
40、4.5 Visibility test SE9 SE4.6 Normal operation test .SE10 SE4.7 Voltage surge test SE10 SE4.8 Component breakdown test .SE10 SE4.9 Base securement test SE10 SE4.10 Base conformity test SE11 SE5 Marking .SE12 SE6 Instruction Manual SE15 SUPPLEMENT SF - PHOTOLUMINESCENT EXIT SIGNS SF1 General .SF1 SF2
41、 Mechanical Construction SF1 SF3 Legend dimensions SF2 SF4 Performance SF2 SF4.1 Sample conditioning .SF2 SF4.2 Visibility tests .SF3 SF5 Markings and Installation Instructions .SF4 SUPPLEMENT SG - MINIMUM LIGHT OUTPUT FOR EMERGENCY LIGHTING EQUIPMENT SG1 Introduction .SG1 SG2 Performance SG1 SG3 Ma
42、rking .SG2 APPENDIX A Standards for ComponentsA1 MAY 9, 2016 EMERGENCY LIGHTING AND POWER EQUIPMENT - UL 924 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 This Standard applies to emergency lighting and power equi
43、pment for use in unclassied locations and intended for connection to branch circuits of 600 volts or less. Such equipment is intended to automatically supply illumination or power or both to critical areas and equipment in the event of failure of the normal supply, in accordance with Article 700 or
44、701 of the National Electrical Code, NFPA 70, the Life Safety Code, NFPA 101, the Fire Code, NFPA 1, the International Building Code, IBC, and the International Fire Code, IFC. 1.2 Examples of equipment described in 1.1 include: Exit Signs Emergency Luminaires Unit Equipment Central Station Battery
45、Banks Inverters Automatic Battery Charging and Control Equipment Automatic Load Control Relays Derangement Signal Equipment 1.3 This Standard also applies to auxiliary lighting and power equipment for use in unclassied locations. Auxiliary equipment has not been investigated to determine compliance
46、with the performance requirements of Article 700 or 701 of the National Electrical Code, NFPA 70, the Life Safety Code, NFPA 101, or the International Building Code. Such equipment includes luminaires with an integral battery backup power supply, illuminated directional signs, battery assemblies, an
47、d related devices. 1.4 This Standard does not include requirements for equipment covered by other Standards, such as: Luminaires, UL 1598 Uninterruptible Power Systems, UL 1778 Luminous Egress Path Marking Systems, UL 1994 Transfer Switch Equipment, UL 1008 Electric Signs, UL 48 MAY 9, 2016 EMERGENC
48、Y LIGHTING AND POWER EQUIPMENT - UL 924 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2 References 2.1 Any undated reference to a code or a standard appearing in the requirements in this standard shall be interpreted as referring to the l
49、atest edition of that code or standard. 3 Resistance to Environmental Conditions 3.1 Equipment marked with an enclosure type number, such as 4X, shall comply with the following: a) The enclosure shall comply with the applicable requirements specied in the Standard for Enclosures for Electrical Equipment, UL 50, and b) The equipment shall comply with the requirements in this standard for use in the environment indicated by the enclosure type designation. 4 Glossary 4.1 F
