Louis-Philippe Gagnon Alarm System Auditor UNDERWRITTERS LABORATORIES OF CANADA May 13 th, 2015

Transcription

1 Louis-Philippe Gagnon Alarm System Auditor UNDERWRITTERS LABORATORIES OF CANADA May 13 th, 2015 UL and the UL logo are trademarks of UL LLC 2012

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3 GOALS OF INSPECTING AND TESTING POWER SUPPLIES Verify/inspect the main power source for the fire alarm control unit. Suitable AC power circuit as per CSA C22.1, Canadian Electrical Code, identified, red & lock. Reference CAN/ULC-S524-06, clause Confirm that the power supply operates adequately. Appropriate voltage, current present and power supply correctly switches to the emergency backup power when AC power is removed. Confirm that the batteries are in good condition and able to support the required loads. 24h supervisory load followed by the full alarm load for the required duration ( 2h, 1h, 30min ou 5min.). Confirm that the batteries are properly sized. Calculated battery capacity requirement as per formula. See CAN/ULC-S537-04, appendix D3 / CAN/ULC-S536-04, appendix F4. Confirm that the battery charging circuit of the power supply is working properly. 3

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10 F1 SILENT TEST F.1 Selection of resistors for the battery tests should be: A Supervisory Load Resistor: RS = V Ex.: 24v = 24ohms Is 1a and its power rating shall be: Ps IsV Ex.: 1a(24v) = 24watts Where Rs = Supervisory load resistance in OHMS V = Nominal battery terminal voltage, e.g. 24 V Is = Supervisory current measured at battery terminals, AC off B Alarm Load Resistor: Ra = V Ex.: 24v = 8ohms Ia 3a and its power rating shall be: Pa IaV Ex.: 3a(24) = 72 watts where Ra = Alarm load resistance in OHMS V = Nominal battery terminal voltage Ia = Alarm current measured at battery terminals, AC off. 10

11 F2 SILENT ACCELERATED TEST F2.1 The silent accelerated test in this Subsection is intended as an alternate to Subsection F1, Silent Test, for small conventional system in which the service person would be able to complete all of the requirements prescribed in this Standard in 1 d or less. It avoids returning the following day to confirm the end point condition of a 24 h battery test. F2.2 The formula in Clause F2.4 prorates the time that the Alarm Load (Ia) is applied to the battery, based on a combining of Alarm and Supervisory Current multiplied by an acceleration figure. The formula recognizes that the higher discharge rate will reduce the effective amp-hour battery rating. It is based on a 5 min alarm (bell) requirement. F2.3 Large systems with two-stage operation and/or voice communication or with signalling during other than 5 min should follow the tests described in Subsection F1, Silent Test. F2.4 Full load conditions should be applied for a period of time not less than that calculated by the following formula. Battery voltage should not be less than 85% of rating during the test. The duration of the test should be determined as follows: 11

12 Hr = [(IsxD)+(Iax0,5)](1,2) Ex.: [(1ax24h)+(3ax0,5)](1,2) = 10,2Hr Ia 3a Where: Hr = hours D = Required system supervisory time (normally 24 h) Is = Supervisory Current Ia = Alarm Load Current The resistor should be determined as follows: RL (OHMS) = V/Ia PL (WATTS) = V(Ia) Ex.: 24v/3a = 8ohms Ex.: 24v(3a) = 72watts RL should be connected directly across the battery terminals for the time duration determined above. F2.5 As an alternate to the calculation in F2.4, the battery may be discharged in accordance with the battery manufacturer s capacity chart for the specific battery using suitable sized load resistors. 12

13 F3 BATTERY CAPACITY METER TEST F3.1 The capacity should not be less than the calculated A h requirements of the system after the test, otherwise, replace batteries: A Disconnect test battery from system; B Connect the capacity meter across the battery in accordance with the meter manufacturer s instructions; and C Note the capacity of the battery. F4 BATTERY CAPACITY CALCULATION F4.1 Perform battery capacity calculation as follows: A [Supervisory current as per Appendix E2.5 Item D] x [Supervisory Requirement (h)]= A h Ex.: 1Ax24h = 24Ah B [Full load current (A) as per Appendix E2.5 Item E] x [Alarm Requirement (h)] = A h Ex.: 3Ax0,5h = 1.5Ah C System Battery Capacity Requirement A h = (F4.1 Item A result) + (F4.1 Item B result) Enter the result into Appendix E2.5 Item Q of the report. Ex.: 24Ah+1.5Ah = 25.5Ah 13

14 F5 EMERGENCY POWER FOR FIRE ALARM SYSTEMS NBC Emergency Power for Fire Alarm Systems 1) An emergency power supply conforming to Sentences (2), (3) and (4) shall be provided for fire alarm systems. 2) The emergency power supply required by Sentence (1) shall be supplied from a) a generator, b) batteries, or c) a combination thereof. 3) The emergency power supply required by Sentence (1) shall be capable of providing a) supervisory power for not less than 24 h, and b) immediately following, emergency power under full load for not less than i) 2 h for a building within the scope of Subsection , ii) 1 h for a building classified as Group B major occupancy that is not within the scope of Subsection , iii) 5 min for a building not required to be equipped with an annunciator, and iv) 30 min for any other building. 14

15 4) The emergency power supply required by Sentence (1) shall be designed so that there will be automatic transfer to emergency power in the event of a failure of the normal power source. 5) An emergency power supply shall be provided for the voice communication system required by Article ) The emergency power supply required by Sentence (5) for the voice communication system shall be capable of a) full operation immediately upon the failure of the normal source of power, and b) maintaining operation of the system for not less than 2 h. 7) If the emergency power supply required by Sentence (5) is provided by batteries, the batteries shall be sized to provide the total energy consumed by the maximum possible electrical supervision current plus the trouble signal current for a period of 24 h followed by 30 min of continuous voice communication. 15

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17 FACP With AC Power On 17

18 FACP on Supervisory

19 Battery Tester

20 Resistor Full Load

21 Battery Recharge

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23 Definitions CAN/ULC-S & CAN/ULC-S GLOSSARY FAULT ISOLATION MODULE A device used in data communication links for wire to wire short circuit protection. CAN/ULC-S GLOSSARY 3.39 FAULT ISOLATOR A device used for wire to wire short circuit protection. 23

24 CAN/ULC-S AUDIO BUSS FAULT ISOLATOR A fault isolator intended for use on audio (paging, telephone or tone) busses to ensure that a short circuit fault on an audio buss in one fire alarm zone does not prevent the normal operation of an audio buss in another fire alarm zone DATA FAULT ISOLATOR A fault isolator intended for use on data communication links to ensure that a short circuit fault on a data communication link in one fire alarm zone does not prevent the normal operation of a data communication link in another fire alarm zone POWER BUSS FAULT ISOLATOR A fault isolator intended for use on power busses to ensure that a short circuit fault on a power buss in one fire alarm zone does not prevent the normal operation of a power buss in another fire alarm zone SUITE FAULT ISOLATOR A fault isolator intended for use on signal circuits serving suites of a residential or care occupancy to ensure that a short circuit fault on a signal circuit in one suite of a residential or care occupancy does not prevent the normal operation of a signal device in another suite of a residential or care occupancy. 24

25 CAN/ULC-S & CAN/ULC-S GLOSSARY 3.29 FAULT ISOLATION MODULE A device used in data communication links for wire-to-wire short circuit fault protection POWER ISOLATION MODULE A device used in a power distribution riser for wire-to-wire short circuit fault protection SUITE ISOLATOR DEVICE A device serving suites of residential occupancies for wire-to-wire short circuit fault protection. 25

26 Testing Fault Isolation Modules CAN/ULC-S VERIFICATION OF FIRE ALARM SYSTEMS Where fault isolation modules are installed in data communication links serving field devices, wiring shall be shorted on the isolated side, annunciation of the fault confirmed, and then a device on the source side shall be operated, and activation confirmed at the control unit or transponder Where fault isolation in data communication links is provided between control units or transponders, the field wiring shall be shorted between each pair of control units or transponders, in turn, annunciation of the fault confirmed and operation outside the shorted section confirmed. 26

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28 CAN/ULC-S INSPECTION AND TESTING OF FIRE ALARM SYSTEMS Where fault isolation modules are installed in data communication links serving field devices, wiring shall be shorted on the isolated side, annunciation of the fault confirmed, and then a field device on the source side shall be operated, and activation confirmed at the control unit or transponder Where fault isolation in data communication links is provided between control units or transponders and between transponders, introduce a short circuit fault and confirm annunciation of the fault and operation outside the shorted section between each pair of: A Control unit to control unit; B Control unit to transponder; and C Transponder to transponder. 28

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32 Smoke Detector Sensitivity Measurement 32

33 CAN/ULC-S INSPECTION AND TESTING OF FIRE ALARM SYSTEMS Smoke Detectors General Each smoke detector shall be visually inspected for cleanliness. When required, cleaning shall be in accordance with the manufacturer s recommendations Each smoke detector shall be tested for operation by introducing smoke or simulated smoke to the detecting chamber in accordance with the manufacturer s instructions Each smoke detector shall be tested to confirm that it is within its rated operating range using a test method described in Clause (Refer to Appendix E3.1, Field Device Testing-Legends and Notes.) A smoke detector whose sensitivity is not within the required operating range shall be cleaned, retested in accordance with Clause , and if still not within its rated sensitivity, replaced with a compatible smoke detector. (Refer to Appendix E3.1, Field Device Testing-Legends and Notes.) 33

34 Each smoke detector sensitivity measurement and if applicable, the cleaning date shall be recorded on the individual device record. (Refer to Appendix E3.1, Field Device Testing-Legends and Notes.) Acceptable methods of determining the smoke detector sensitivity are: A Manufacturer s recommended test instrument, equipment, or method; B Installed control units or transponders designed to test the sensitivity of individual smoke detectors; or C Calibrated instruments that provide the operation as described in CAN/ULC-S529, Standard for Smoke Detectors for Fire Alarm Systems, for the purpose of testing smoke detector sensitivity. 34

35 Documenting Smoke Detector Sensitivity Measurement CAN/ULC-S E3. FIELD DEVICE TESTING LEGEND AND NOTES The following notes apply to Appendix E3.2, Individual Device Record: NOTE 1: Smoke detector sensitivity confirmation or measurement should be recorded in the remarks column. NOTE 2: Smoke detector cleaning or replacement date should also be recorded in the remarks column. 35

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37 SMOKE DETECTOR SENSITIVITY The relative degree of response of a smoke detector expressed in %/foot obscuration. A high sensitivity detector responds to a lower concentration of smoke while a low sensitivity detector responds to a high concentration of smoke under identical fire test conditions. 37

38 NEWER SMOKE DETECTORS Addressable: real time monitoring/diagnostics reporting directly to the fire alarm control panel. Some detectors look for fire signature, not just smoke, can require specialized knowledge to test correctly. Can utilize drift compensation technology Conventional: easier testing with information available. Variety of methods: Obscuration Voltage Diagnostic LED S Can utilize drift compensation technology OLDER SMOKE DETECTORS Conventional: Information may be difficult to source. Specialized testing equipment required. Continued testing with smoke or aerosol over time or incorrectly used may contribute to detectors either becoming more or less sensitive over time. 38

39 WHY? Smoke detectors do drift outside of their listed smoke detector sensitivity range, introducing smoke into the chamber and seeing the detector alarm, does not prove that it is still operating within it s designed parameters and will work in a real fire condition to detect the products of combustion when required! 39

40 Thank you!!!