1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 985 Household Fire Warning System UnitsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FU
2、RTHER 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 This new edition of UL 985 was issued to incorporate the following changes: Revisions to Minimum Spacings Alternati
3、ve Safety Related Requirements Revisions to Testing Methods for Clarication and Harmonization with other Fire Control Standards, where applicable. Revisions based on NFPA 72 (2010 and 2013) Clarication and Revision of Combination Systems Clarication and Revision of Marking Location Revisions to Perm
4、it Electronic Media Based Installation Instructions Short Range Radio Frequency Requirements The effective date for UL LLC will be announced through Industry File Review Announcement Letter. The requirements are substantially in accordance with Proposal(s) on this subject dated January 31, 2014, Jun
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6、ithout 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 damages, including loss of prots, lost savings, lo
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9、le purchaser is storing an electronic Standard on the purchasers computer system. MAY 15, 2015 UL 985 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 15, 2015 UL 985 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR F
10、URTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 15, 2015 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
11、/UL Standard for Safety consists of the Sixth edition. The most recent designation of ANSI/UL 985 as an American National Standard (ANSI) occurred on May 11, 2015. ANSI approval for a standard does not include the Cover Page, Transmittal Pages and Title Page. Comments or proposals for revisions on a
12、ny 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 a
13、ltered 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 2015 UNDERWRITERS LABORATORIES INC. ANSI/UL 985-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTI
14、ON 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 .7 2 General 8 2.1 Components .8 2.2 Units of measure
15、ment .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 compatibility .12 CONSTRUCTION 6 General .12 7 Frame and Enclosure 13 7.1 General 13 7.2 Cast metal enclosures .13 7.3 Sheet
16、 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 .23 12 Corrosion Protection 24 13 Insulating M
17、aterial 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 Primary Power Supply .30 21 Secondary Power Suppl
18、y 30 22 Batteries .31 INSTALLATION WIRING CONNECTIONS 23 General 31 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 DISTRIBUTION WITHOUT PERMISSION FROM UL 26 Power-Su
19、pply Cord .33 27 Strain Relief 33 28 Power-Limited Circuits .34 INTERNAL WIRING AND ASSEMBLY 29 Internal Wiring 35 GROUNDING 30 Equipment Grounding .36 31 Polarity Identication 36 COMPONENTS 32 End-of-Line Devices .37 33 Printed Wiring Boards .37 34 Bushings 37 35 Coil Windings 38 36 Switches .38 37
20、 Lampholders and Lamps 38 38 Protective Devices 39 SPACINGS 39 General 39 PERFORMANCE 40 General 41 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 Alarm Verication Feature (Optional) 48 43 Tw
21、o-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 load immunity .51 43.7 Electrical supervision .5
22、2 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 Supervision Test .53 44.1 Power supplies .53 4
23、4.2 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 Undervoltage Operation Test .55 46 Overvolta
24、ge 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 current .59 48.4 VA max (not inherently limited circuits only) .59 49 Jarring Test 60 50 Component Temperature
25、 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 trial .67 52 Overload Test 67 52.1 Control unit 67 52.2 Separately energized circuits 67 53 Endurance Test 68 53.1 Control unit 68 53.2 Operating device .68 54 Va
26、riable 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/output circuit (low-voltage circuit) t
27、ransients 76 59 Dielectric Voltage-Withstand Test .81 60 Component Failure Test .82 61 Audibility Test 82 62 Abnormal Operation Test 83 SHORT RANGE RADIO FREQUENCY DEVICES 63 General 83 64 Operation 84 64.1 General .84 64.2 Signaling 84 64.3 Sprinkler supervisory signals .85 64.4 Maximum duration of
28、 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 FIRE WARNING SYSTEM UNITS - UL 9
29、85 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) Rate .90 71 Throughput Rate 91 72 Maximum Duration of Transmission .92 73 Transmitter Stability Tests .92 74 Transmitter Accelerat
30、ed Aging Test .92 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 MANUFACTURING AND PRODUCTION T
31、ESTS 77 Production-Line Dielectric Voltage-Withstand Test 98 78 Production-Line Grounding-Continuity Test for High-Voltage, Cord-Connected Products .99 INSTALLATION DRAWING 79 General 99 INSTRUCTIONS 80 General 101 MARKINGS 81 General 102 APPENDIX A Standards for ComponentsA1 APPENDIX SBINSTRUCTIONS
32、 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 HOUSEHOLD FIRE W
33、ARNING 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 Fire Alarm Cod
34、e, 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 appliance circuit i
35、s 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, shall be provided integr
36、al with the control unit or provision may be provided for its connection to the control 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
37、 single- 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 i
38、n such 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 The
39、se requirements 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 ex
40、ternal 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 shal
41、l comply 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
42、 Household 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
43、of the 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.
44、2, a 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) Involve
45、s a 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 co
46、mponents 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.
47、2.1 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
48、 of 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 Opera
49、tion 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 alarm 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
