1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 539 Single and Multiple Station Heat AlarmsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FO
2、R FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Single and Multiple Station Heat Alarms, UL 539 Sixth Edition, Dated January 30, 2009 Summary of Topics Reaffirmation and Continuance of the Sixth Edition of the Standard for Single and Multiple Station Heat
3、 Alarms, UL 539, as an American National 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. The revisions are substantially in accordance with Proposal(s) on this subject dated October 3, 2014. All rights r
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8、on the purchasers computer system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the note following the affected item. The prior text for requirements that
9、 have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. DECEMBER 23, 2014 UL 539 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL DECEMBER 23, 2014 UL 5
10、39 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 30, 2009 (Title Page Reprinted: December 23, 2014) 1 UL 539 Standard for Single and Multiple Station Heat Alarms The rst edition was titled Fire Alarm Devices
11、, Single and Multiple Station, Mechanically Operated Type. The Second, Third, and Fourth editions were titled Fire Alarm Devices, Single and Multiple Station, Mechanically Operated Type. The fth edition was initially titled Single and Multiple Station Heat Detectors First Edition October, 1973 Secon
12、d Edition December, 1976 Third Edition June, 1991 Fourth Edition July, 1995 Fifth Edition July, 2000 Sixth Edition January 30, 2009 This ANSI/UL Standard for Safety consists of the Sixth Edition including revisions through December 23, 2014. The most recent designation of ANSI/UL 539 as a Reaffirmed
13、 American National Standard (ANS) occurred on December 23, 2014. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals s
14、hould 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 2014 UNDERWRITERS LABORATORIES INC. ANSI/UL 539-2009 (R2014)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 30, 2009 SINGLE AND MULTI
16、PLE STATION HEAT ALARMS - UL 539 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 7 2.1 Components .7 2.2 Units of measurement .7 2.3 Undated references .8 3 Glossary .8 4 Insta
17、llation and Operating Instructions .9 5 Temperature Classication .9 6 Electrically Operated Alarms 10 6.1 Alarm reliability prediction 10 6.2 Battery removal indicator .10 CONSTRUCTION MECHANICALLY OPERATED 7 Mounting 11 8 Calibration 11 9 Materials 11 10 Operating Mechanisms 12 11 Mechanical Assemb
18、ly .12 12 Power Supervisory Feature 12 ELECTRICALLY OPERATED 13 Accessories 12 14 Supplementary Signaling Features 12 15 Servicing and Maintenance Protection .13 15.1 General .13 15.2 Sharp edges .13 16 Enclosure 13 16.1 General .13 16.2 Cast metal enclosures 14 16.3 Sheet metal enclosures .15 16.4
19、Nonmetallic enclosures .16 16.5 Ventilating openings 16 16.6 Covers 17 16.7 Glass panels 18 16.8 Corrosion protection 18 17 Power Supply 19 17.1 Primary power supply .19 17.2 Secondary power supply 19 17.3 Batteries 20 17.4 Supplementary signaling circuits .21 18 Field Wiring 21 18.1 Permanent conne
20、ction 21 18.2 Field-wiring compartment 21 18.3 Field-wiring terminals .21 JANUARY 30, 2009 SINGLE AND MULTIPLE STATION HEAT ALARMS - UL 539 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 18.4 Field-wiring leads .22 18.5 Grounded supply ter
21、minals and leads .22 18.6 Power supply cord 22 18.7 Equipment grounding .23 18.8 Remote power supply .24 19 Internal Wiring 24 19.1 General .24 19.2 Bonding for grounding 25 20 Electrical Components .26 20.1 General .26 20.2 Bushings 28 20.3 Lampholders and lamps .29 20.4 Protective devices 29 20.5
22、Printed-wiring boards .29 20.6 Switches 29 20.7 Transformers and coils 30 20.8 Dropping resistors 30 21 Spacings 30 PERFORMANCE ALL ALARMS 22 General 32 23 Determination of Spacings .33 24 Oven Test .33 25 Fire Test .35 26 High Temperature Exposure Test .38 27 Corrosion Tests 39 28 Operating Tempera
23、ture Test .41 29 Vibration Test 41 30 Humidity Test 42 31 Low Temperature Exposure Test .42 32 Audibility Test 42 32.1 General .42 32.2 Sound output measurement .43 32.3 Alarm Duration Test 44 32.4 Supplementary remote sounding appliances .44 33 Marking Tag Secureness Test 44 34 Normal Operation Tes
24、t 44 34.1 General .44 34.2 Standardized alarm signal .45 35 Jarring Test 46 36 Effect of Shipping and Storage .47 37 Dust Test 47 38 Replacement Test, Head and Cover 48 MECHANICALLY OPERATED ALARMS 39 Endurance Test 48 JANUARY 30, 2009 SINGLE AND MULTIPLE STATION HEAT ALARMS - UL 539 4UL COPYRIGHTED
25、 MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL ELECTRICALLY OPERATED ALARMS 40 Test Voltages 48 41 Electrical Supervision Test .49 41.1 General .49 41.2 AC powered units 49 41.3 Battery powered (primary or secondary) units 50 41.4 Component failure 51 41
26、.5 External wiring .51 42 Circuit Measurement Test 51 42.1 Current input .51 42.2 Battery trouble voltage determination .52 43 Overvoltage and Undervoltage Tests 54 43.1 Overvoltage test .54 43.2 Undervoltage test 55 44 Temperature Test .55 45 Transient Tests .59 45.1 General .59 45.2 Supply line (h
27、igh-voltage) transients 59 45.3 Internally induced transients .59 45.4 Extraneous transients .60 45.5 Supply line (low-voltage) circuit transients .61 46 Static Discharge Test .63 47 Abnormal Operation Test 64 48 Sensitivity Test Feature 64 49 Leakage Current Test .64 50 Dielectric Voltage-Withstand
28、 Test .66 51 Tests of Thermoplastic Materials .66 51.1 Accelerated air-oven aging test 66 51.2 Flame test (3/4 inch) 67 51.3 Flame test (5 inch) .68 52 Overload Test 69 52.1 Detector .69 52.2 Separately energized circuits 70 53 Endurance Test 70 53.1 Heat alarm 70 53.2 Separately energized circuits
29、70 53.3 Audible signaling appliance 71 53.4 Test means 71 54 Polarity Reversal Test .71 55 Electric Shock Current Test 71 56 Strain Relief Test .76 56.1 General .76 56.2 Power-supply cord 77 56.3 Field-wiring leads .77 57 Battery Tests .77 58 Power Supply Tests .78 58.1 General .78 58.2 Volt-amperes
30、 capacity 78 58.3 Burnout test .79 59 Conformal Coatings on Printed-Wiring Boards 79 59.1 Low voltage printed-wiring boards 79 59.2 High voltage printed-wiring boards 81 JANUARY 30, 2009 SINGLE AND MULTIPLE STATION HEAT ALARMS - UL 539 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION
31、 OR DISTRIBUTION WITHOUT PERMISSION FROM UL INSTRUCTIONS 60 General 82 MARKING 61 General 83 SUPPLEMENT SA - ELECTRONICALLY OPERATED HEAT ALARM RELIABILITY PREDICTION SA1 Instructions for Determining a Reliability Prediction for heat Alarms SA1 SA2 Methods of Determining Failure Rate SA2 SA3 Maximum
32、 Heat Alarm Failure Rates .SA9 SA4 General SA9 SA5 Quality Assurance Screening Program SA11 SA6 Determination of Failure Rate Number Supplemented by Burn-In Test SA12 SA6.1 General .SA12 SA6.2 Determination sequence SA13 SA6.3 Test calculations and procedures SA16 SA6.4 Test conditions SA16 SA6.5 Fa
33、ilure rate number calculation SA17 APPENDIX A A1 Test Oven .A1 A1.1 Construction A1 A1.2 Test method A3 APPENDIX B Standards for ComponentsB1 JANUARY 30, 2009 SINGLE AND MULTIPLE STATION HEAT ALARMS - UL 539 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PER
34、MISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover heat-actuated, single and multiple station heat alarms intended for indoor installation in accordance with the National Fire Alarm Code, NFPA 72, Chapter 11. 1.2 These requirements do not cover electrically operated single or multiple
35、 station smoke or heat alarms. 2 General 2.1 Components 2.1.1 Except as indicated in 2.1.2, a component of a product covered by this standard shall comply with the requirements for that component. 2.1.2 A component is not required to comply with a specic requirement that: a) Involves a feature or ch
36、aracteristic 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 components are inco
37、mplete 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 Values stated
38、 without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 2.2.2 Unless otherwise indicated, all voltage and current values mentioned in this standard are root-mean-square (rms). JANUARY 30, 2009 SINGLE AND MULTIPLE STATION HEAT ALARMS - UL 539 7UL CO
39、PYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 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 that code or standa
40、rd. 3 Glossary 3.1 For the purpose of this standard the following denitions apply. 3.2 ALARM SIGNAL An audible signal intended to indicate an emergency re condition. 3.3 COMPONENT, LIMITED LIFE A component that is expected to fail and be periodically replaced and whose failure is supervised. Typical
41、 examples of such components include incandescent lamps, electronic tube heaters, functional heating elements, and batteries. See also 41.4. 3.4 COMPONENT, RELIABLE A component that is not expected to fail or be periodically replaced and is not supervised. A reliable component shall have a predicted
42、 failure rate of 2.5 or less failures per million hours. 3.5 HEAT ALARM, SINGLE STATION A self-contained re alarm system comprising of a heat alarm, an alarm sounding device, and a stored energy source (wound spring) incorporated in one integral package. 3.6 MECHANICALLY-OPERATED-TYPE A heat alarm h
43、aving 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 melting of the eutectic element releases the spring mechanism resulting in a bell-type sound. 3.7 RISK OF ELECTRIC SHOCK A risk of
44、 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 continuous current ow through a 1500 ohm resistor connected across the potential exceeds 0.5 milliampere. 3.8 RISK OF FIRE
45、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 condition of load, including short circuit, results in a current of 8 amperes or more after 1 minute of operation or b) A po
46、wer of more than 15 watts is deliverable into an external resistor connected between the two points. 3.9 STORY That portion of a building included between the upper surface of a oor and upper surface of the next oor or roof above. 3.10 TROUBLE POINT Any combination of battery voltage and series resi
47、stance that results in an audible trouble signal from a battery-operated alarm. JANUARY 30, 2009 SINGLE AND MULTIPLE STATION HEAT ALARMS - UL 539 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.11 TROUBLE SIGNAL A visible or audible signa
48、l 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 of the supply battery. 3.12 VOLTAGE CLASSIFICATION Unless otherwise indicated, all voltage and current values specied in t
49、his 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 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 transformer.
