1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 985 Household Fire Warning System Units STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL N
2、OT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Household Fire Warning System Units, UL 985 Sixth Edition, Dated May 15, 2015 Summary of Topics The following changes are being issued for the Standard for Safety for Household Fire Warning S
3、ystem Units, ANSI/UL 985: Web or Internet Downloadable Digital Installation Instructions for Internet Required Products Charging Current Test Power-Supply Cord The requirements are substantially in accordance with Proposal(s) on this subject dated March 17, 2017 and June 30, 2017. All rights reserve
4、d. 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 permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or impl
5、ied, 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 damages, including loss of prots, lost savings, loss of data, or any other damages arising out of the u
6、se 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 of the electronic ver
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8、 purchasers computer system. SEPTEMBER 5, 2017 UL 985 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SEPTEMBER 5, 2017 UL 985 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT
9、 PERMISSION FROM UL MAY 15, 2015 (Title Page Reprinted: September 5, 2017) 1 UL 985 Standard for Household Fire Warning System Units First Edition January, 1973 Second Edition April, 1980 Third Edition June, 1985 Fourth Edition July, 1994 Fifth Edition May, 2000 Sixth Edition May 15, 2015 This ANSI/
10、UL Standard for Safety consists of the Sixth edition including revisions through September 5, 2017. The most recent designation of ANSI/UL 985 as an American National Standard (ANSI) occurred on September 5, 2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, and T
11、itle Page. 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 p
12、rinted nor 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 985-2017UL COPYRIGHTED MATERIAL N
13、OT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 15, 2015 HOUSEHOLD FIRE WARNING SYSTEM UNITS - UL 985 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .
14、7 2 General8 2.1 Components8 2.2 Units of measurement .8 2.3 Undated references .8 3 Glossary 8 4 Instructions and Drawings 11 5 Compatibility Information .11 5.1 General .11 5.2 Method of evaluation.12 5.3 Changes affecting compatibility12 CONSTRUCTION 6 General.12 7 Frame and Enclosure 13 7.1 Gene
15、ral .13 7.2 Cast metal enclosures .13 7.3 Sheet metal enclosures 14 7.4 Nonmetallic enclosures.15 8 Electric Shock 16 9 Enclosure Openings .16 9.1 General .16 9.2 Enclosure top openings 17 9.3 Enclosure side openings .17 9.4 Enclosure bottom openings .22 10 Metal Covers and Doors 23 11 Glass Panels
16、.23 12 Corrosion Protection .24 13 Insulating Material .24 14 Mounting of Electrical Components 25 15 Operating Mechanisms.26 16 Current-Carrying Parts .26 17 Grounding for Products Containing High-Voltage Circuits.26 18 Servicing Protection .30 FIELD-WIRING CONNECTIONS 19 Power Connections .30 20 P
17、rimary Power Supply .30 21 Secondary Power Supply.30 22 Batteries .31 INSTALLATION WIRING CONNECTIONS 23 General31 24 Field-Wiring Terminals .32 25 Field-Wiring Leads.32 MAY 15, 2015 HOUSEHOLD FIRE WARNING SYSTEM UNITS - UL 985 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DIST
18、RIBUTION WITHOUT PERMISSION FROM UL 26 Power-Supply Cord 33 27 Strain Relief 33 28 Power-Limited Circuits .34 INTERNAL WIRING AND ASSEMBLY 29 Internal Wiring35 GROUNDING 30 Equipment Grounding .36 31 Polarity Identication .36 COMPONENTS 32 End-of-Line Devices.37 33 Printed Wiring Boards37 34 Bushing
19、s .37 35 Coil Windings .38 36 Switches .38 37 Lampholders and Lamps .38 38 Protective Devices.39 SPACINGS 39 General39 PERFORMANCE 40 General41 41 Normal Operation Test .41 41.1 Fire alarm control unit 41 41.2 Supervising stations .45 41.3 Combination control unit .46 41.4 Primary power supply 48 42
20、 Alarm Verication Feature (Optional) 48 43 Two-Wire Smoke Detector Compatibility Tests 50 43.1 Operating voltage determination .50 43.2 Alarm threshold impedance.50 43.3 Maximum current limitation .51 43.4 Multiple detector alarm capacity .51 43.5 Detectors with optional components .51 43.6 Dynamic
21、load immunity 51 43.7 Electrical supervision 52 43.8 Maximum capacitance loading 52 43.9 Alarm reset voltage and time .52 43.10 Alarm verication (optional)52 43.11 Minimum normal standby impedance (optional) .53 43.12 Minimum impedance where second alarm will not occur (optional) 53 44 Electrical Su
22、pervision Test 53 44.1 Power supplies 53 44.2 Interconnecting circuits and pathways .54 44.3 Trouble signals .54 MAY 15, 2015 HOUSEHOLD FIRE WARNING SYSTEM UNITS - UL 985 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 44.4 Keypads .55 45 U
23、ndervoltage Operation Test .55 46 Overvoltage Operation Test.56 47 Voltage and Current Measurements .56 47.1 Input circuit .56 47.2 Output circuit .56 48 Power-Limited Circuits .56 48.1 General.56 48.2 Maximum voltage .59 48.3 Maximum current59 48.4 VA max (not inherently limited circuits only) 59 4
24、9 Jarring Test 60 50 Component Temperature Test 61 51 Charging Current Test .66 51.1 General.66 51.2 Discharged battery 66 51.3 Charged battery .66 51.4 Discharged battery second trial67 52 Overload Test 67 52.1 Control unit .67 52.2 Separately energized circuits .67 53 Endurance Test.68 53.1 Contro
25、l unit .68 53.2 Operating device 68 54 Variable Ambient Temperature Test .68 55 Humidity Test .68 56 Leakage Current Test 69 57 Electric Shock Current Test.71 58 Transient Test 75 58.1 General.75 58.2 Supply line ring wave surge voltage transients 76 58.3 Internally induced transients 76 58.4 Input/
26、output circuit (low-voltage circuit) transients .76 59 Dielectric Voltage-Withstand Test .81 60 Component Failure Test82 61 Audibility Test .82 62 Abnormal Operation Test .83 SHORT RANGE RADIO FREQUENCY DEVICES 63 General83 64 Operation.84 64.1 General.84 64.2 Signaling .84 64.3 Sprinkler supervisor
27、y signals85 64.4 Maximum duration of transmission 85 64.5 Inoperative transmitter reporting.85 64.6 Tamper signal 86 64.7 Interference protection 86 64.8 Battery status indication 86 65 Reference Level Determination .87 66 Interference Immunity 88 67 Frequency Selectivity 88 MAY 15, 2015 HOUSEHOLD F
28、IRE WARNING SYSTEM UNITS - UL 985 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 68 Time to Report Alarm 89 69 Clash 89 70 Error (Falsing) Rate90 71 Throughput Rate 91 72 Maximum Duration of Transmission92 73 Transmitter Stability Tests 92
29、 74 Transmitter Accelerated Aging Test92 75 Installation Instructions and User Manual .93 76 Primary Batteries Test .93 76.1 Life test.93 76.2 Battery trouble voltage determination 94 76.3 Battery replacement test .97 76.4 Butt-type connection pressure test 98 76.5 Polarity reversal test 98 MANUFACT
30、URING AND PRODUCTION TESTS 77 Production-Line Dielectric Voltage-Withstand Test 98 78 Production-LineGrounding-ContinuityTestforHigh-Voltage,Cord-ConnectedProducts .99 INSTALLATION DRAWING 79 General99 INSTRUCTIONS 80 General 101 MARKINGS 81 General 102 APPENDIX A Standards for ComponentsA1 APPENDIX
31、 SBINSTRUCTIONS FOR CALCULATING ATTENUATION PARAMETERS AND OPEN AREA TEST DISTANCE (D EOAT ) SB1 Instructions for Determining L1, L2, L3, and L4 Values SB1 SB2 Determining L w .SB1 SB3 Determining L f SB2 SB4 Determining L b .SB2 SB5 Determining D EOAT SB2 SB6 Example Calculation SB2 MAY 15, 2015 HO
32、USEHOLD FIRE WARNING SYSTEM UNITS - UL 985 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover household re warning system control units intended to be installed in accordance with the National
33、Fire Alarm Code, ANSI/NFPA 72, and the National Electrical Code, ANSI/NFPA 70. 1.2 A household re warning system control unit consists of a unit assembly of electrical parts having provision for connection of power supply and initiating device circuits. Provision for connection of a notication appli
34、ance circuit is also required unless an alarm sounding device is integral with the control unit. Additional terminals may be provided for the connection of supplementary devices, such as annunciators, remote switches, and the like. A secondary supply, consisting of a rechargeable battery, shallbepro
35、videdintegralwiththecontrolunitorprovisionmaybeprovidedforitsconnectiontothecontrol unit. 1.3 Provision for the connection to the control unit of at least one smoke detector is required unless reference is made on the installation diagram for the use of a self-contained smoke detector, such as a sin
36、gle- or multiple-station re alarm device. 1.4 These requirements also apply to the use of combination systems, such as a combination re-burglar alarm system control unit, which uses circuit wiring common to both systems. When common wiring is used for combination systems, it shall be connected in su
37、ch a manner that internal fault conditions (shorts, opens, grounds) in the nonre alarm (burglary) system circuit wiring, or faults between the re and nonre alarm system circuits, will not interfere with the supervision of the re alarm system or prevent intended alarm signal transmission. 1.5 These r
38、equirements do not cover single- or multiple-station re alarm devices, automatic re detectors, or alarm notication appliances, such as bells, horns, carbon monoxide alarm devices, emergency initiating devices, non-emergency initiating devices, and the like. They do cover accessories which are extern
39、al to the control unit and are dependent upon the control unit function, such as end-of-line devices, annunciators, and remote switches. 1.6 If a digital alarm communicator transmitter is used to transmit signals to a remote location and it is to be included as a component of the system, it shall co
40、mply with the applicable requirements in the Standard for Digital Alarm Communicator System Units, UL 1635. Otherwise the user must be notied that the off-premises transmission method has not been so investigated. 1.7 Where a unit employs security functions, it shall comply with the Standard for Hou
41、sehold Burglar-Alarm System Units, UL 1023. Units employing medical alert functions shall comply with the Standard for Home-Health Care Signaling Equipment, UL 1637. A unit utilizing non-re and/or non-carbon monoxide emergency and/or non-emergency signaling functions shall meet the requirements of t
42、he Standard for General-Purpose Signaling Devices and Systems, UL 2017. MAY 15, 2015 HOUSEHOLD FIRE WARNING SYSTEM UNITS - UL 985 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2 General 2.1 Components 2.1.1 Except as indicated in 2.1.2, a
43、 component of a product covered by this standard shall comply with the requirements for that component. See Appendix A for a list of standards covering components 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
44、feature or characteristic not required in the application of the component in 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 compon
45、ents are incomplete in construction features or restricted in performance capabilities. 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. 2.2 Units of measurement 2.2.1
46、Values stated without parentheses are the requirement. Values in parentheses are explanatory or 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
47、that code or standard. 3 Glossary 3.1 For the purpose of this standard the following denitions apply. 3.2 ALARM SIGNAL An audible signal indicating an emergency re condition requiring immediate action, as an alarm initiated from a manual box, smoke, or heat detector. 3.3 ALARM VERIFICATION Operation
48、 of a control unit in conjunction with a related smoke monitoring head or an initiating device circuit in which an alarm signal from a smoke detector is conrmed one or more times over a predetermined period before the control unit will indicate an alarm. This predetermined period consists of an alar
49、m retard-reset period and an alarm conrmation period. The alarm retard period is the delay time designed in the control unit while the alarm reset period is the power-up time for the detector. See Figure 3.1. This is generated text for gtxt. MAY 15, 2015 HOUSEHOLD FIRE WARNING SYSTEM UNITS - UL 985 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Figure 3.1 Alarm verication timing diagram A Smoke detector goes into alarm. AB RETARD-R
