UL SUBJECT 2524A-2018 UL Outline for Investigation In-Building Auxiliary Radio Communication (Issue 1).pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULJUNE 13, 20181UL 2524AOutline of Investigation for In-Building Auxiliary Radio CommunicationSystemsIssue Number: 1June 13, 2018Summary of TopicsThe First Issue of the Outline of Investigation for

2、 In-Building AuxiliaryRadio Communication Systems, UL 2524A, covers products (e.g. basestation, repeaters, transmitters, receivers, signal boosters, powersupplies, battery charging system components, and dedicated radioconsole) used for in-building auxiliary radio communication systems.ULs Outlines

3、of Investigation are copyrighted by UL LLC. Neither a printed norelectronic copy of an Outline of Investigation should be altered in any way. All ofULs Outlines of Investigation and all copyrights, ownerships, and rights regardingthose Outlines of Investigation shall remain the sole and exclusive pr

4、operty of ULLLC.COPYRIGHT 2018 UL LLCUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULJUNE 13, 2018UL 2524A2No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSINT

5、RODUCTION1 Scope .62 General 62.1 Components .62.2 Units of measurement .72.3 Undated references .73 Glossary .74 Information Required for Assessment 10CONSTRUCTION5 General .116 Enclosures 126.1 General 126.2 Enclosure covers 136.3 Battery compartments 136.4 Metallic material .136.5 Polymeric mater

6、ials 166.6 Enclosure openings general .176.7 Enclosure top openings 176.8 Enclosure side openings .186.9 Enclosure bottom openings .217 Internal Materials 228 Accessibility of Uninsulated Live Parts, Film-Coated Wire, and Moving Parts 239 Mechanical Assembly 2510 Protection Against Corrosion .2611 B

7、ranch-Circuit Connection .2611.1 General .2611.2 Permanently connected .2612 Other Field-Wiring Connections .2812.1 General .2812.2 Field-wiring compartment 2912.3 Power-limited circuits .2912.4 Field-wiring terminals (general application) 3012.5 Field-wiring terminals (qualified application) 3112.6

8、 Field-wiring leads .3213 Internal Wiring 3313.1 General .3313.2 Splices and connections 3413.3 Connectors and receptacles .3414 Protective Devices 3415 Current-Carrying Parts 3516 Spacings 3517 Insulating Material 3718 Printed-Wiring Boards .3819 End-of-Line Devices .3820 Voltage-Dropping Resistors

9、 3921 Coil Windings 3922 Components .39JUNE 13, 2018 UL 2524A 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL22.1 Switches 3922.2 Lampholders and lamps .3922.3 Operating mechanisms 4022.4 Across-the-line components .4023 Batteries .4123.1 Re

10、chargeable storage-type used as standby power source 4123.2 Lithium batteries .4124 Grounding for Products Containing High-Voltage Circuits 4125 Servicing Protection .4525.1 General .4525.2 Trained service personnel .4525.3 Antenna terminal discharge assembly .45PROTECTION AGAINST INJURY TO PERSONS2

11、6 General 4627 Sharp Edges .4728 Stability 47PERFORMANCE29 Details .4829.1 Tests and voltages .4829.2 Maximum rated load 49OPERATION TESTS30 General 4931 Operation 5032 Power Supplies .5232.1 General .5232.2 Primary power source .5332.3 Secondary power source(s) 5333 Monitoring for Integrity .5433.1

12、 General .5433.2 Software 5534 Charging Current Test .5734.1 General .5734.2 Discharged battery .5734.3 Charged battery 5834.4 Discharged battery second trial .5835 Electrical Ratings Test 5835.1 General .5835.2 Power input circuits .5835.3 Other external circuits .5936 Jarring Test .5937 Dielectric

13、 Voltage-Withstand Test 6038 Leakage Current Test 6139 Component Temperature Test .6540 Abnormal Operation Tests .6940.1 General .6940.2 Operation .7040.3 Field-wiring circuits .70JUNE 13, 2018UL 2524A4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION

14、FROM UL40.4 Electronic components 7040.5 Cooling fans and blowers .7140.6 Transformer burnout 7240.7 Communications circuits 7340.8 Evaluation of reduced spacings on printed-wiring boards 7341 Tests on Special Terminal Assemblies 7441.1 General .7441.2 Mechanical secureness test .7441.3 Flexing test

15、 7441.4 Millivolt drop test .7441.5 Temperature test .7542 Strain-Relief Test .7543 Polarity Reversal Test .7544 Power-Limited Circuits Test 7544.1 General .7544.2 Maximum voltage 7844.3 Maximum current .7844.4 VAmax(not inherently limited circuits only) .7945 Variable Voltage Operation Test 7946 Va

16、riable Ambient Temperature and Humidity Tests .8046.1 General .8046.2 Low temperature test .8046.3 High temperature test .8046.4 Humidity test .8147 Transient Tests .8147.1 General .8147.2 Externally-induced supply-line transients 8247.3 Internally-induced transients .8247.4 Input/output (low-voltag

17、e) field-wiring transients 8248 (Reserved) 87MANUFACTURING AND PRODUCTION-LINE TESTS49 Dielectric Voltage-Withstand Test .87MARKINGS AND INSTRUCTIONS50 Marking 8850.1 General .8850.2 Permanence of marking .9151 Installation Wiring Diagram/Instructions 92APPENDIX AStandards for ComponentsA1JUNE 13, 2

18、018 UL 2524A 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINTRODUCTION1 Scope1.1 These requirements cover in-building auxiliary radio communication systems (ARC Systems)products (e.g. base station, repeaters, transmitters, receivers, signa

19、l boosters, power supplies, batterycharging system components, and dedicated radio console).1.2 These systems are intended to be employed in accordance with New York City Fire DepartmentRule 1 RCNY and Rule 3-RCNY 511-01, In-Building Auxiliary Radio Communication Systems.1.3 The products covered by

20、this standard are intended to be used in combination with other productsand devices to form an ARC system. An installation document(s) provided with the product describes thevarious products needed to form an ARC system and their intended use and installation.1.4 These requirements address the safet

21、y, reliability and operational requirements prior to installation.1.5 These requirements do not include determination of compliance with national regulations addressingelectromagnetic radiation and use of radio frequencies. Should products covered by these requirementsbe required to comply with nati

22、onal regulations, a report of verification from the manufacturer is requiredas evidence of such compliance from the following:a) Federal Communications Commission (FCC).1.6 Products intended to be employed in accordance with the Standard for the Installation, Maintenance,and Use of Emergency Service

23、s Communications Systems, NFPA 1221 and the International Fire Codeare covered by UL 2524, Outline of Investigation for In-building 2-Way Emergency Radio CommunicationEnhancement Systems.2 General2.1 Components2.1.1 Except as indicated in 2.1.2, a component of a product covered by this outline shall

24、 comply with therequirements for that component. See Appendix A for a list of standards covering components used in theproducts covered by this outline.2.1.2 A component is not required to comply with a specific requirement that:a) Involves a feature or characteristic not required in the application

25、 of the component in theproduct covered by this outline, orb) Is superseded by a requirement in this outline.2.1.3 A component shall be used in accordance with its rating established for the intended conditions ofuse.JUNE 13, 2018UL 2524A6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTI

26、ON ORDISTRIBUTION WITHOUT PERMISSION FROM UL2.1.4 Specific components are incomplete in construction features or restricted in performancecapabilities. Such components are intended for use only under limited conditions, such as certaintemperatures not exceeding specified limits, and shall be used on

27、ly under those specific conditions.2.2 Units of measurement2.2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory orapproximate information.2.3 Undated references2.3.1 Any undated reference to a code or standard appearing in the requirements of this outlin

28、e shall beinterpreted as referring to the latest edition of that code or standard.3 Glossary3.1 ACKNOWLEDGE Action taken to confirm that a message or signal has been received, such aspressing a button.3.2 ACTIVE RADIO FREQUENCY EMITTING DEVICE A powered device that emits a radio frequencysignal as p

29、art of an in-building 2-way emergency radio communication enhancement system.3.3 ADVERSE CONDITION Any condition occurring in a circuit or communication path that interfereswith the proper signaling or interpretation of status-change signals or both. Conditions include radiofrequency interference.3.

30、4 AIR-HANDLING SPACE Space used for environmental air-handling purposes other than ducts orplenums. The space over a hung ceiling used for environmental air-handling is an example.3.5 ANNUNCIATOR A unit containing one or more indicator lamps, alphanumeric displays, or otherequivalent means in which

31、each indication provides status information about a circuit, condition, orlocation.3.6 AVERAGE VALUE The sum of all instantaneous values of current (or voltage), averaged overone-half of an alternating cycle.3.7 BASE STATION A transceiver that receives radio signals from an antenna system and retran

32、smitsthem through the ARC antenna system in an amplified and/or otherwise enhanced manner.3.8 BATTERY CHARGER A product intended to deliver sufficient current to maintain storage batteriesin their fully-charged condition while the batteries are not connected to a load. The storage batteries areinten

33、ded to provide a secondary source of operating power in response to failure of the primary source ofoperating power.3.9 CIRCUIT CLASSIFICATIONS:a) High-Voltage Circuit A circuit involving a potential of not more than 600 V nominal andhaving characteristics in excess of those of a low-voltage circuit

34、.b) Low-Voltage Circuit A circuit involving a potential of not more than 30 V alternating current(AC) rms, 42.4 V direct current (DC) or peak.JUNE 13, 2018 UL 2524A 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULc) Power-Limited Circuit A ci

35、rcuit wherein the power is limited as specified in Tables 44.1 and44.2.3.10 DISCHARGED BATTERY A standby battery discharged as described in 34.2.3.11 DISTINCTIVE SIGNALS Signals obtained from different sounding appliances (such as bells,horns, sirens, and buzzers) or from a single appliance (such as

36、 an electronic horn) where a continuoussignal is obtained under one condition and a pulsing signal under another.3.12 (reserved)3.13 END-OF-LINE DEVICE A device installed at the end of a circuit for the purpose of monitoring thecircuit for fault conditions.3.14 EXTERNAL CIRCUITS Circuits or wiring l

37、eaving the product.3.15 FAULT An open, ground, or short-circuit condition on any line extending from a product.3.16 FIELD WIRING Conductors to be installed by others to connect a product to source(s) of supply,devices, other products, and loads.3.17 FIRE COMMAND CENTER The principal attended or unat

38、tended location where the status of thedetection, alarm communications, and control systems is displayed and from which the system can bemanually controlled.3.18 FIXED EQUIPMENT Any equipment product that is intended to be permanently connectedelectrically to the wiring system.3.19 GROUNDED CONDUCTO

39、R A conductor employed to connect the intentionally grounded circuitof a wiring system to a grounding electrode.3.20 GROUND FAULT A circuit impedance to ground sufficient to result in the annunciation of a troublecondition.3.21 GROUNDING CONDUCTOR A conductor employed to connect non-current-carrying

40、 parts ofequipment, raceways, and enclosure to a grounding electrode at the service which is, in turn, connectedto earth ground or to some conducting body which serves in place of earth ground.3.22 OPEN FAULT A circuit impedance increase sufficient to prevent normal operation.3.23 OPERATOR Individua

41、l(s) responsible to access and operate the product and/or system, but doesnot have access to portions of the product required for servicing and maintenance.3.24 OPERATOR INTERFACE Providing controls for manually operating the product/system.3.25 PATH (PATHWAY) Any conductor, optic fiber, radio carri

42、er, or other means for transmittinginformation between two or more units and/or locations.JUNE 13, 2018UL 2524A8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL3.26 POWER SUPPLY A source of electrical operating power including the circuits and

43、 terminationsconnecting it to the dependent product/system components.3.27 POWER SUPPLY-BATTERY CHARGER A power supply that serves the dual function of providingoperating power and charging storage batteries. The power supply is usually permanently connected tostorage batteries, and the power supply

44、-battery combination is intended to provide all of the electricaloperating power required by the equipment to which the combination is connected, when the equipmentis operating in its intended manner.3.28 REPEATER A device for receiving and re-transmitting two-way communication signals.3.29 REPEATER

45、 CHANNEL SYSTEM A repeater system utilizing channels with paired receive andtransmit frequencies to rebroadcast user signals to the Dedicated Radio Console (DRC) and all users inthe building on that channel in an ARC system.3.30 RESET A control function that attempts to return a system or device to

46、its normal non-alarm state.3.31 RISK OF ELECTRIC SHOCK A risk of electric shock is determined to exist at any part if:a) The potential between the part and earth ground or any other accessible part is more than42.4 V peak, andb) The continuous current flow through a 1500 W resistor connected across

47、the potentialexceeds 0.5 mA.3.32 RISK OF FIRE A risk of fire is considered to exist at any two points in a circuit where:a) The open circuit voltage is more than 42.4 V peak and the energy available to the circuitunder any condition of load including short circuit, results in a current of8Aormore af

48、ter 1 minof operation; orb) A power of more than 15 W can be delivered into an external resistor connected between thetwo points.3.33 SIMPLEX CHANNEL SYSTEM A ARC system utilizing channels with the same frequencies fortransmit and receive allowing an user at the Dedicated Radio Console (DRC) to comm

49、unicate with an userin the building.3.34 SOFTWARE Programs, instructions, procedures, data, and the like that are executed by a centralprocessing unit of a product and which influences the functional performance of that product. For thepurpose of this standard, software is one of two types:a) Executive Software Control and supervisory program which manages the execution of allother programs and directly or indirectly causes the required functions of the product to beperformed.b) Site-Specific Software