INTELLIGENTADDRESSABLE FIRE DETECTIONFIRE ALARM SYSTEMS.pdf

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SECTION 13851 INTELLIGENT/ADDRESSABLE FIRE DETECTION/FIRE ALARMSYSTEMSCONSTRUCTION STANDARD

Design & Construction Standards, Printed September 15, 1998 13851-1

PART 1: GENERAL

A. Purpose: This Standard is intended to assure that fire detection/alarm systemsat The University of Texas at Austin provide the highest level of fire safetypossible.

B. Scope:1. This standard is to be used in the development of all fire detection/alarm

system designs for buildings and structures at The University of Texas atAustin.

2. This standard is to apply to all fire detection/alarm system components andequipment.

C. Objectives: This standard is intended to achieve consistently high levels of firedetection/alarm system performance by:

1. Allowing designers to incorporate required or desired features as early in thedesign development process as possible.

2. Assuring all systems are designed to meet all applicable code, ordinances,laws, and sound engineering judgment.

3. Providing a basis for a general understanding among all parties involved in thedesign of systems.

PART 2: PRODUCTS

A. Type of System: All system product lines are to be comprised of componentscapable of providing the following features when appropriate and specified:

1. Floor above/floor below notification.2. Private alarm notification.3. Occupied/unoccupied notification.4. Voice alarm notification.5. Fireman's communications.6. Elevator capture/recall.7. Smoke control/fan shutdown.8. Automatic door control.

B. Equipment:

Fire Alarm Control Panel (FACP):

1. All fire alarm control panels are to be Central Processing Unit (CPU) based.2. All FACP's are to be capable of providing circuit integrity monitoring for all

Signaling Line Circuits at a level of Style 6, (NFPA 72, 1993, Table 3-6. 1,"Performance and Capacities of Signaling Line Circuits [SLC]").

3. All FACP's are to be capable of providing circuit integrity monitoring ofInitiating Device Circuits (IDC's) at a level of Style B (Class B), (NFPA 72,1993, Table 3-5.1, "Performance and Capacities of Initiating Device Circuits


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[IDC]").4. All FACPs are to be capable of providing circuit integrity monitoring of

Notification Appliance Circuits (NAC's) at a level of Style Y (Class B),(NFPA 72, 1993, Table 3-7.1, "Notification Appliance Circuits [NAC]").

5. All FACP's are to be capable of providing circuit integrity monitoring ofControl Device Circuits (CDC) at a level equal to a Style Y (Class B)Notification Appliance Circuit.

6. Smoke detector "Alarm Verification" timing for Signaling Line Circuitsystems is to be provided and is to be adjustable to reduce or eliminateunwanted alarms.

7. All FACP's are to provide power supply capacity to allow for future expansionby the owner.

8. All FACP's are to be capable of interconnection to the campus-wideProprietary Supervisory Signaling System by contact closure (EOL) for the

following events:MANUAL ALARMAUTOMATIC ALARMWATERFLOWTROUBLE

9. Zone labeling is to be textual by alphanumeric display at the FACP and remoteenunciator to allow use by persons not trained in fire alarm technology.

10. Textual (alphanumeric) language is to be concise, clear and accurate tofacilitate rapid response.

11. All FACP's are to provide a control to silence the Public Alarm to allow formaintenance and testing and to reduce disruption.

12. All FACP's are to provide a control to override the smoke control/fanshutdown feature to allow for maintenance and testing.

13. All FACP's are to be connected to a Primary and Secondary Power source.Batteries are to be contained within an enclosure separate from all electronicscomponents to prevent corrosive damage.

14. All FACP's are to provide a separate digital address for each initiating deviceexcept valve position supervisory switches to facilitate rapid response and

maintenance and testing.15. All FACP's are to provide a separate digital address for each individual flow

switch.16. All FACP's are to provide one digital address for each group of valve position

supervisory switches physically located in one room, to a maximum of five (5)per address.

17. All programming are to be permanent and non-volatile to reduce outage timedue to failure. All FACP's are to provide a printed log of all status change


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activity.18. All FACP's are to be listed and approved as the smoke detector sensitivity test

set to reduce maintenance time. All FACP's are to be capable of providingdrift compensation. Drift compensation is to be considered equal toadjustability at the detector.

19. All FACP's are to provide smoke detector alarm verification to reduceunwanted alarms.

Distributed Power Supplies:

1. Distributed power supplies for powering Notification Appliance Circuits,beam smoke detectors and control relays may be used.

2 All distributed power supply inputs are to be controlled by addressableinterface devices located on the same floor levels as the power supply andcontrolled by the SLC serving the area to facility maintenance.

Manual Stations:

1. All manual stations are to be of the "double-action" type to reduce accidentalor vandalized alarms.

2. Each manual station is to have a unique digital address on the SLC.

Thermodetectors:

1. All thermodetectors are to be combination fixed temperature and rate-of-rise,spot type, operating at 135 degrees or 190 degrees.

2. Each thermodetector is to have a unique address on the SLC.

3. Non resetting detectors are to give visual indication of "ALARM" condition tofacilitate rapid response.

Smoke Detectors:

1. All smoke detectors, except beam type, are to be of the ionization type.2. Each smoke detector, spot or beam, is to have a unique digital address on the

SLC.3. All smoke detectors are to be field measurable and adjustable for sensitivity.

Drift compensation is to be considered equal to adjustability.4. All smoke detectors, except projected beam type, are to derive power from the

SLC.5. The FACP is to function as the smoke detector sensitivity test set and is to be

approved and listed for that service.6. All smoke detectors are to meet or exceed the requirements of Underwriters


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Laboratory Standard 268, as amended, and are to be listed and approved foruse with the FACP provided.

Duct-Mounted Smoke Detectors:

1. It is to be the responsibility of the Contractor to assure that all "supply air" is

sampled.

Projected-Beam Smoke Detectors:

1. All projected-beam detectors are to operate on the infrared principle.2. All projected-beam detectors are to have automatic gain control circuits to

compensate for deterioration of signal strength due to environmental factorssuch as dirt and dust accumulation, component aging and temperaturefluctuations.

3. Transmitting and receiving units of projected-beam detectors are to beprotected from physical damage.

4. All projected-beam smoke detectors are to have circuits to prevent "false"

alarms due to sudden and complete obscuration.

Waterflow Switches:

1. Fire detection/alarm systems are to be interconnected to the fire sprinklersystems by waterflow switches capable of delay (retard) prior to the"ALARM".

2. Each waterflow switch is to have a unique digital address on the SLC.3. It is to be the responsibility of the Contractor to decide the specific placement

of the waterflow switches to assure indication of water flow within the buildingand at each level of the building to reduce water damage.

4. All waterflow switches are to be provided with a proper, code-compliantInspectors Test valve and drain to allow proper testing.

Supervisory (Tamper) Switches:

1. Switches are to be installed on all valves to indicate any disarrangement ofvalves within a sprinkler, fire hose cabinet or dry standpipe system whichwould reduce the effectiveness of the system.

Audible Appliances:

1. Audible notification appliances are to be speakers or horns. Signal generatedis to be the distinctive three-pulse temporal pattern described by NFPA andANSI codes. When generated by speakers, The Evacuation Signal is to bealternated with a custom textual message.

Visual Appliances:

1. All visual notification appliances are to be xenon strobe, compliant with currentrequirements of the Americans With Disabilities Act (ADA), 1993.


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2. All visual notification appliances are to be synchronized to prevent an effective

flash rate of greater than one hertz in any space.

Remote Annunciator:

1. When allowed and/or required by the project documents, a remote annunciatormay be located in an open accessible area at or adjacent to the main groundlevel entrance to the building. The FACP may then be located elsewhere.

2. Remote annunciator is to impart the same fire location information as the mainFACP.

Monitorinq Devices:

1. Addressable monitoring devices used to monitor contact-closure initiatingdevices such as duct-mounted smoke detectors, waterflow switches and tamperswitches are to derive power from the SLC to which they are connected.

2. Each monitoring device is to have a unique digital address on the SLC.3. Monitoring devices are not to be used to interface smoke detectors other than

duct-mounted smoke detectors to the SLC.

Control Devices:

1. Addressable control devices used to switch Notification Appliance Circuits areto derive operating power from the SLC.

2. Addressable control devices are not to control more than one type ofappliance/device.

PART 3: DESIGN REQUIREMENTS / INTERCONNECTION AND OPERATION

A. All systems are to be compliant with applicable paragraphs of NFPA Code 101"Code for Safety to Life from Fire in Buildings and Structures".

B. All systems are to be compliant with the requirements of National Fire ProtectionAssociation Code 72 (1993) The National Fire Alarm Code".

C. In addition to the requirements of The National Fire Alarm Code and theAmericans with Disabilities Act, all fire detection/alarm systems are to be designedto provide smoke detection and audio/visual alarm to the level of Partial Detection

as described at NFPA 101, Par. 7-6.2.8 which requires coverage in all thefollowing areas:

1. The entire route of egress to include corridors, stairs, escalator locations,foyers, anterooms, reception areas, etc.

2. Public access areas to include rest rooms, class rooms, reception areas,teaching laboratories, auditoria, gymnasia, cafeterias, theaters, conferencerooms, etc.

3. Special hazard areas to include mechanical equipment rooms, electrical closets,


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storage rooms, janitorial storage areas, etc.

4. Areas or rooms deemed by the Owner to deserve special protection due tohigh value content or historical significance such as library stack areas, artstorage and/or restoration areas, rare book deposit areas, etc.

D. Smoke detectors are to be provided at all elevator lobbies to perform capture/recallfunctions.

E. All systems are to be designed to provide manual means of alarm initiation atevery exit from every level. Elevators are not to be considered an exit or route ofegress.

F. All designs are to provide for each building a complete and working digital,addressable voice alarm, closed circuit, automatic and manual fire detection / alarmsystem for each floor of the building as shown on the drawings, to performdetection, monitoring and alarm functions for the building.

G. High rise buildings shall require a graphic annunciator panel by floor.(i.e. mimic

bus.)H. Engineer shall require as-built drawings that shall include a point-to-point wiring

diagram.I. Special Drawing Requirements:

1. All visual devices must indicate designed strobe candela rating.2. Do not provide redundancy of detectors. If smoke detectors are used, then no

heat detectors.3. Engineer shall provide supporting design documentation including design

calculations.4. Drawings shall include a fire alarm riser diagram depicting overall

connectivity.5. Location of all devices shall comply with applicable ADA requirements.

J. Quality Assurance:

1. All equipment is to be listed and approved by a testing laboratory that has beenapproved by the State of Texas Commission on Fire Safety. This listing is tobe for all functions required by this standard.

2. All systems are to comply with applicable paragraphs of the National ElectricCode.

K. Interconnection And Operation

Signaling Line Circuits (SLC)

1. All FACP's are to be capable of providing circuit integrity monitoring for allSignaling Line Circuits at a level of Style 6, (NFPA 72, 1993, Table 3-6.1,"Performance and Capacities of Signaling Line Circuits [SLC]").


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2. All the following devices/appliances are to be individually addressed on the

SLC:

a. Smoke detectors.b. Heat detectors.

c. Manual stations.d. Monitor devices.e. Control devices.f. Fault isolation devices.g. IDC's.h. Audio NACs.h. Visual NAC's.i. CDC's.

3. Digital addressable loops are to be configured as Class A, Style 6, SignalingLine Circuits (SLC) as described at Table 3-6.1, "Performance and Capacitiesof Signaling Line Circuits (SLC)", NFPA 72, 1993.

4. A fault isolation device is to be provided electrically between each buildinglevel. The device is to be powered by the SLC loop.

Initiating Device Circuits (IDC)

1. Initiating Device Circuits (IDC's) are to be monitored at a level of Style B(Class B), (NFPA 72, 1993, Table 3-5.1, "Performance and Capacities ofInitiating Device Circuits [IDC]"). Monitoring shall be accomplished by amonitoring device.

IDC's are to be limited to:

1 ) Only one duct mounted smoke detectoror

2) Only one waterflow switchor

3) No more than five (5) tamper switches, all located in one room.

Notification Appliance Circuits (NAC)

1. All Notification Appliance Circuits (NAC's) am to be monitored at a levelof Style Y (Class B), (NFPA 72, 1993, Table 3-7.1, "NotificationAppliance Circuits [NAC]").

2. Direct current notification appliance power provided from the FACP is tobe distributed on Style 6 loop to all control devices in the system.

3. Direct current notification appliance power provided from a distributedpower supply is to be controlled by a digital addressable control device onthe SLC.

4. Voice frequency notification appliance signal is to be provided by theFACP amplifiers and distributed on a Style 6 loop.


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5. Audible notification appliances and visual notification appliances are toalways be connected to separate NAC's to facilitate maintenance.

Control Device Circuits (CDC)

1. Control Device Circuits (CDC) are to be monitored at a level equal to a

Style Y (Class B) Notification Appliance Circuit.

Floor Above/Floor Below Notification

1. In high rise structures, each level is to constitute a minimum of one audioNotification Appliance Circuit and one visual Notification ApplianceCircuit. NAC's are to cause the Public Alarm to sound on the level onwhich the "ALARM" condition originates, one level directly above, onelevel directly below.

2. The FACP is to provide a control to allow sounding the Public Alarmthroughout the structure (All-call).

Private Alarm Notification

1. When allowed, the Public Alarm is to be delayed to allow time forinvestigation. The Private Alarm is to be audible and visual at a pointdesignated on the project documents.

2. If no response is made at the FACP within a set time, the Public Alarm isto sound. Keyed override is to be provided.

Occupied/Unoccupied Notification

1. When appropriate the FACP is to provide an"OCCUPIED/UNOCCUPIED" control to allow the disabling of portionsof the Public Alarm to reduce panic hazard.

Voice Alarm Notification

1. When appropriate the audible portion of the Public Alarm is to be VoiceAlarm. Signals generated are to be the Distinctive Evacuation Signal(three-pulse temporal pattern) alternated with a digitized custom textualmessage.

2. The FACP is to allow voice paging to selected areas. The FACP is toprovide an "all-call" control.

Fireman's Communications

1. When appropriate a complete and separate Fireman's communicationssystem is to be provided. The command center is to be at or adjacent to theFACP. Wiring for the Fireman's Communications System is to remainseparate from the fire detection/alarm system. Common raceway orconduit may be used.

Elevator Capture/Recall

1. Elevator capture/recall is to be initiated by the three (3) smoke detectors


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closest to the elevator door on each floor whenever the elevator lobby islarge enough to contain three detectors and elevator equipment rooms.

2. Elevator capture/recall is to operate to a Primary destination level and to aSecondary destination level.

Smoke Control/Fan Shutdown

1. Alarm initiation by duct-mounted smoke detectors is to cause shutdown ofassociated air handling units. Motor control circuits are to not be routedthrough the housing.

2. The SLC is to connect to a control device to interrupt the motor controlcircuits.

3. The control device is to be assigned a unique digital address on the SLC.4. A "BYPASS" control is to be provided at the FACP.

Automatic Door Control

1. Automatic Release-to-Close: Smoke control doors normally held openelectrically are to be allowed to close upon any "ALARM" condition.

2. Automatic Unlock: Access control doors normally electrically locked forsecurity are to unlock on any "ALARM" condition.

Wiring

1. Basic wiring materials are to comply with requirements of Division 16Basic Electrical Materials and Methods sections, "Raceways" and"Electrical Boxes and Fittings"; types to be selected by contractor.

2. Conductor sizes are to be AWG #14 or larger, solid, except when

decorative raceway is surface mounted.3. All wiring is to be in conduit or raceway.

PART 4: SPECIAL CONDITIONS

A. It is to be the responsibility of the Contractor to assure that there is no disruptionof The University's normal functions such as study, testing, class, research oradministration.

B. Connections to or operation of existing systems are to be performed by orsupervised by Electronics Shop staff.

PART 5: TESTING

A. Upon completion of the system, the Contractor is to perform a complete andcomprehensive test of the entire system in accordance with the provisions ofNFPA 72, "The National Fire Alarm Code" (1993 edition).

B. It is to be the responsibility of the Contractor to demonstrate to The University'srepresentative that the system is installed and functions in accordance with the


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project documents and applicable codes.

C. Specific Tests:

1. In addition to the provisions of NFPA 72 and/or the above paragraph, it is tobe the responsibility of the Contractor to provide:

a. Smoke detector sensitivity.b. Pressure differential readings for duct detector sample air flow.c. Closed loop resistance readings for all field wiring.d. Programming volatility test.

PART 6: DOCUMENTATION

A. A documentation package is to be provided by the Contractor that shall include allinformation needed to allow The University to perform additions, modifications,maintenance and repair of the system.

This is to include:

1. Equipment schematic diagrams for all components and modules.2. Equipment technical data.3. Field device address register.4. Equipment repair parts lists.5. Programming disk with all system software.6. "As-built "wiring, conduit diagrams to include:7. Floor plan layout drawings showing all significant conduit routes and sizes,8. Wire amounts, sizes and color code and marshaling box locations.9. Riser diagram showing all significant conduit routes and sizes, wire amounts,

Sizes and color code and marshaling box locations.10. Floor plan device layout drawing to include all initiating device locations and

digital addresses.

END OF STANDARD 13851

INTELLIGENTADDRESSABLE FIRE DETECTIONFIRE ALARM SYSTEMS.pdf

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