UL 539-2017 UL Standard for Safety Single and Multiple Station Heat Alarms (Seventh Edition Reprint with revisions through and including May 22 2018).pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 539 Single and Multiple Station Heat Alarms STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERI

2、AL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Single and Multiple Station Heat Alarms, UL 539 Seventh Edition, Dated April 28, 2017 Summary of Topics This new edition of ANSI/UL 539 includes an Alternative Paintbrush Marking for the

3、Do Not Paint Requirement. The requirements are substantially in accordance with Proposal(s) on this subject dated February 24, 2017. 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 photo

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5、 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 representative has been advised of the possibility of such damage. In no

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7、udgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. APRIL 28, 2017 UL 539 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISS

8、ION FROM UL APRIL 28, 2017 UL 539 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 28, 2017 1 UL 539 Standard for Single and Multiple Station Heat Alarms The rst edition was titled Fire Alarm Devices, Single and

9、Multiple Station, Mechanically Operated Type. TheSecond,Third,andFourtheditionsweretitledFireAlarmDevices,Singleand Multiple Station, Mechanically Operated Type. The fth edition was initially titled Single and Multiple Station Heat Detectors First Edition October, 1973 Second Edition December, 1976

10、Third Edition June, 1991 Fourth Edition July, 1995 Fifth Edition July, 2000 Sixth Edition January, 2009 Seventh Edition April 28, 2017 This ANSI/UL Standard for Safety consists of the Seventh Edition. The most recent designation of ANSI/UL 539 as an American National Standard (ANSI) occurred on Apri

11、l 28, 2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, and Title 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

12、 Development System (CSDS) at https:/. 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 rights regarding those Standards shall remain the sole and exclusive prope

13、rty of UL. COPYRIGHT 2017 UNDERWRITERS LABORATORIES INC. ANSI/UL 539-2017UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 28, 2017 SINGLE AND MULTIPLE STATION HEAT ALARMS - UL 539 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHOR

14、IZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .7 2 Components7 3 Units of Measurement .7 4 Undated References 8 5 Glossary .8 6 Installation and Operating Instructions .9 7 Temperature Classication .9 8 Electrically Operated Alarms 10 8.1 Alar

15、m reliability prediction 10 8.2 Battery removal indicator .10 CONSTRUCTION MECHANICALLY OPERATED 9 Mounting11 10 Calibration .11 11 Materials.11 12 Operating Mechanisms 12 13 Mechanical Assembly .12 14 Power Supervisory Feature 12 ELECTRICALLY OPERATED 15 Accessories 12 16 Supplementary Signaling Fe

16、atures 12 17 Servicing and Maintenance Protection.13 17.1 General .13 17.2 Sharp edges .13 18 Enclosure 13 18.1 General .13 18.2 Cast metal enclosures 14 18.3 Sheet metal enclosures .15 18.4 Nonmetallic enclosures .16 18.5 Ventilating openings 16 18.6 Covers 17 18.7 Glass panels 18 18.8 Corrosion pr

17、otection 18 19 Power Supply 19 19.1 Primary power supply .19 19.2 Secondary power supply 19 19.3 Batteries 20 19.4 Supplementary signaling circuits .21 20 Field Wiring 21 20.1 Permanent connection 21 20.2 Field-wiring compartment21 20.3 Field-wiring terminals .21 20.4 Field-wiring leads.22 APRIL 28,

18、 2017 SINGLE AND MULTIPLE STATION HEAT ALARMS - UL 539 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 20.5 Grounded supply terminals and leads.22 20.6 Power supply cord22 20.7 Equipment grounding .23 20.8 Remote power supply.24 21 Internal

19、 Wiring24 21.1 General .24 21.2 Bonding for grounding 25 22 Electrical Components.26 22.1 General .26 22.2 Bushings 28 22.3 Lampholders and lamps.29 22.4 Protective devices 29 22.5 Printed-wiring boards .29 22.6 Switches 29 22.7 Transformers and coils30 22.8 Dropping resistors 30 23 Spacings 30 PERF

20、ORMANCE ALL ALARMS 24 General32 25 Determination of Spacings .33 26 Oven Test .33 27 Fire Test.38 28 High Temperature Exposure Test .41 29 Corrosion Tests 42 30 Operating Temperature Test .44 31 Vibration Test 44 32 Humidity Test 45 33 Low Temperature Exposure Test .45 34 Audibility Test 45 34.1 Gen

21、eral .45 34.2 Sound output measurement .46 34.3 Alarm Duration Test 47 34.4 Supplementary remote sounding appliances .47 35 Marking Tag Secureness Test47 36 Normal Operation Test 47 36.1 General .47 36.2 Standardized alarm signal .48 37 Jarring Test 49 38 Effect of Shipping and Storage .50 39 Dust T

22、est 50 40 Replacement Test, Head and Cover 50 MECHANICALLY OPERATED ALARMS 41 Endurance Test 51 APRIL 28, 2017 SINGLE AND MULTIPLE STATION HEAT ALARMS - UL 539 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL ELECTRICALLY OPERATED ALARMS 42

23、Test Voltages 51 43 Electrical Supervision Test .51 43.1 General .51 43.2 AC powered units 52 43.3 Battery powered (primary or secondary) units52 43.4 Component failure 53 43.5 External wiring .54 44 Circuit Measurement Test54 44.1 Current input.54 44.2 Battery trouble voltage determination .54 45 O

24、vervoltage and Undervoltage Tests 57 45.1 Overvoltage test .57 45.2 Undervoltage test 58 46 Temperature Test.58 47 Transient Tests .62 47.1 General .62 47.2 Supply line (high-voltage) transients 62 47.3 Internally induced transients .62 47.4 Extraneous transients .63 47.5 Supply line (low-voltage) c

25、ircuit transients .64 48 Static Discharge Test .66 49 Abnormal Operation Test 67 50 Sensitivity Test Feature67 51 Leakage Current Test .67 52 Dielectric Voltage-Withstand Test .69 53 Tests of Thermoplastic Materials .69 53.1 Accelerated air-oven aging test 69 53.2 Flame test (3/4 inch)70 53.3 Flame

26、test (5 inch) .71 54 Overload Test 72 54.1 Detector.72 54.2 Separately energized circuits 73 55 Endurance Test 73 55.1 Heat alarm 73 55.2 Separately energized circuits 73 55.3 Audible signaling appliance 74 55.4 Test means74 56 Polarity Reversal Test .74 57 Electric Shock Current Test 74 58 Strain R

27、elief Test .79 58.1 General .79 58.2 Power-supply cord80 58.3 Field-wiring leads.80 59 Battery Tests .80 60 Power Supply Tests.81 60.1 General .81 60.2 Volt-amperes capacity 81 60.3 Burnout test .82 61 Conformal Coatings on Printed-Wiring Boards82 61.1 Low voltage printed-wiring boards 82 61.2 High

28、voltage printed-wiring boards84 APRIL 28, 2017 SINGLE AND MULTIPLE STATION HEAT ALARMS - UL 539 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INSTRUCTIONS 62 General85 MARKING 63 General86 SUPPLEMENT SA - ELECTRONICALLY OPERATED HEAT ALAR

29、M RELIABILITY PREDICTION SA1 Instructions for Determining a Reliability Prediction for heat Alarms SA1 SA2 Methods of Determining Failure Rate SA2 SA3 Maximum Heat Alarm Failure Rates SA11 SA4 General .SA11 SA5 Quality Assurance Screening Program SA11 SA6 Determination of Failure Rate Number Supplem

30、ented by Burn-In Test SA13 SA6.1 General .SA13 SA6.2 Determination sequence SA13 SA6.3 Test calculations and procedures SA16 SA6.4 Test conditions SA16 SA6.5 Failure rate number calculation SA17 APPENDIX A A1 Test Oven .A1 A1.1 Construction A1 A1.2 Test method A3 APPENDIX B Standards for ComponentsB

31、1 APRIL 28, 2017 SINGLE AND MULTIPLE STATION HEAT ALARMS - UL 539 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover heat-actuated, single and multiple station heat alarms intended for indoor i

32、nstallation in accordance with the National Fire Alarm Code, NFPA 72, Chapter 11. 1.2 These requirements do not cover electrically operated single or multiple station smoke or heat alarms. 2 Components 2.1 Except as indicated in 2.2, a component of a product covered by this standard shall comply wit

33、h the requirements for that component. 2.2 A component is not required to comply with a specic requirement that: a) Involves 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.

34、3 A component shall be used in accordance with its rating established for the intended conditions of use. 2.4 Specic components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain tempe

35、ratures not exceeding specied limits, and shall be used only under those specic conditions. 3 Units of Measurement 3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 3.2 Unless otherwise indicated, all voltage and current valu

36、es mentioned in this standard are root-mean-square (rms). APRIL 28, 2017 SINGLE AND MULTIPLE STATION HEAT ALARMS - UL 539 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 4 Undated References 4.1 Any undated reference to a code or standard a

37、ppearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard. 5 Glossary 5.1 For the purpose of this standard the following denitions apply. 5.2 ALARM SIGNAL An audible signal intended to indicate an emergency re condition. 5.3 COMPON

38、ENT, LIMITED LIFE A component that is expected to fail and be periodically replaced and whose failure is supervised. Typical examples of such components include incandescent lamps, electronic tube heaters, functional heating elements, and batteries. See also 43.4. 5.4 COMPONENT, RELIABLE A component

39、 that is not expected to fail or be periodically replaced and is not supervised. A reliable component shall have a predicted failure rate of 2.5 or less failures per million hours. 5.5 HEAT ALARM, SINGLE STATION A self-contained re alarm system comprising of a heat alarm, an alarm sounding device, a

40、nd a stored energy source (wound spring) incorporated in one integral package. 5.6 MECHANICALLY-OPERATED-TYPE A heat alarm having a temperature sensitive bimetal or eutectic element and a spring-wound-type mechanism with clapper mounted within a bell housing. The snap action of the bimetal or meltin

41、g of the eutectic element releases the spring mechanism resulting in a bell-type sound. 5.7 RISK OF ELECTRIC SHOCK A risk of electric shock is determined to exist at any part, when: a) The potential between the part and earth ground or any other accessible part is more than 42.4 volt peak and b) The

42、 continuous current ow through a 1500 ohm resistor connected across the potential exceeds 0.5 milliampere. 5.8 RISK OF FIRE A risk of re is determined to exist at any point in a circuit where: a) The open circuit voltage is more than 42.4 volt peak, and the energy available to the circuit under any

43、condition of load, including short circuit, results in a current of 8 amperes or more after 1 minute of operation or b) A power of more than 15 watts is deliverable into an external resistor connected between the two points. 5.9 STORY That portion of a building included between the upper surface of

44、a oor and upper surface of the next oor or roof above. 5.10 TROUBLE POINT Any combination of battery voltage and series resistance that results in an audible trouble signal from a battery-operated alarm. APRIL 28, 2017 SINGLE AND MULTIPLE STATION HEAT ALARMS - UL 539 8UL COPYRIGHTED MATERIAL NOT AUT

45、HORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5.11 TROUBLE SIGNAL A visible or audible signal intended to indicate a fault or trouble condition, such as an open or shorted condition of a component in the device or an open or ground in the connected wiring, or depletion

46、of the supply battery. 5.12 VOLTAGE CLASSIFICATION Unless otherwise indicated, all voltage and current values specied in this standard are rms: a) Extra-Low-Voltage Circuit A circuit that has an AC voltage of not more than 30 volts alternating current (AC) (42.4 volts peak) and maximum power of 100

47、volt-amperes, such as supplied by a Class 2 transformer; or a circuit of not more than 30 volts direct current (DC) supplied by a primary battery; or a circuit supplied by a combination of a transformer and xed impedance, that as a unit, complies with all the performance requirements of a Class 2 tr

48、ansformer. A circuit that is derived from a supply circuit of more than 30 volts by connecting resistance or impedance, or both, in series with the supply circuit to limit the voltage and current, is not identied as an extra-low-voltage circuit. b) Hazardous-Voltage Circuit A circuit having characte

49、ristics in excess of those of an extra- low-voltage circuit. 6 Installation and Operating Instructions 6.1 A copy of the installation and operating instructions, and related schematic wiring diagrams and installation drawings shall be used as a reference in the examination and test of the alarm. For this purpose, a printed edition is not required. The information is to be included in a homeowners manual. 6.2 The instructions and drawings shall include such directions and information