7/21/2019 16720 Fire Alarm System http://slidepdf.com/reader/full/16720-fire-alarm-system 1/26 Small Boats Harbours Project 16720/1 Fire Alarm System SECTION 16720 FIRE ALARM SYSTEM 1.0 SUMMARY A. The work of this section is integral with the whole of the contract documents and is not intended to be interpreted outside the context. B. The work of this section is integral with General Conditions of the Contract. 1.1 SCOPE OF WORK This Specification is for supply, installation, testing and commissioning of a high quality fast acting electronic network Analogue Addressable Fire Alarm System at the KOC Small Boats Harbours Project. The Contractor shall provide the Labour/Material/Equipments/Machines required for completing the work in an approved manner. 1.2 RELATED SECTIONS A. Section 16010 : General Provisions for Electrical Works B. Section 16050 : Basic Materials and Methods C. Section 16111 : Cable Trays D. Section 16112 : Raceway and Boxes for Electrical Systems E. Section 16114 : Trunking F. Section 16120 : Wires and Cables G. Section 16140 : Wiring Devices H. Section 15950 : Building Management System (BMS)1.3 REFERENCE CODES & STANDARDS The Fire Detection and Alarm Equipments and Devices shall conform to design, manufacture, testing and performance with the current issue of the following Codes and Standards. BS 5839, Part-1 : 2002 Fire Detection and Alarm Systems for Buildings. Codes of Practice for Design, Installation and Servicing. BS 5839, Part-2 : 2002 Specification for Manual Call Points. BSEN 60529 : Specification for Degree of Protection provided by Enclosures (IP Code). BSEN 54, Part-1 : Fire Detection and Alarm System (Introduction) EN 54, Part-5 : Components of Automatic Fire Detection System. Heat Sensitive Detectors - Point Detectors containing a Static Element.
Small Boats Harbours Project 16720/1 Fire Alarm System
SECTION 16720
FIRE ALARM SYSTEM
1.0 SUMMARY
A. The work of this section is integral with the whole of the contractdocuments and is not intended to be interpreted outside the context.
B. The work of this section is integral with General Conditions of theContract.
1.1 SCOPE OF WORK
This Specification is for supply, installation, testing and commissioning of ahigh quality fast acting electronic network Analogue Addressable Fire Alarm
System at the KOC Small Boats Harbours Project. The Contractor shallprovide the Labour/Material/Equipments/Machines required for completing thework in an approved manner.
1.2 RELATED SECTIONS
A. Section 16010 : General Provisions for Electrical WorksB. Section 16050 : Basic Materials and MethodsC. Section 16111 : Cable TraysD. Section 16112 : Raceway and Boxes for Electrical SystemsE. Section 16114 : Trunking
F. Section 16120 : Wires and CablesG. Section 16140 : Wiring DevicesH. Section 15950 : Building Management System (BMS)
1.3 REFERENCE CODES & STANDARDS
The Fire Detection and Alarm Equipments and Devices shall conform todesign, manufacture, testing and performance with the current issue of thefollowing Codes and Standards.
BS 5839, Part-1 : 2002 Fire Detection and Alarm Systems forBuildings. Codes of Practice for Design, Installationand Servicing.
BS 5839, Part-2 : 2002 Specification for Manual Call Points.BSEN 60529 : Specification for Degree of Protection provided by
Enclosures (IP Code).BSEN 54, Part-1 : Fire Detection and Alarm System (Introduction)EN 54, Part-5 : Components of Automatic Fire Detection System.
Heat Sensitive Detectors - Point Detectorscontaining a Static Element.
Small Boats Harbours Project 16720/2 Fire Alarm System
EN 54, Part-7 : Specification for Point Type Smoke Detectorsusing Scattered Light, Transmitted Light orIonization.
EN 54, Part-8 : Specification for High Temperature HeatDetectors.
NFPA 101 : Life Safety Code.NFPA 72 : National Fire Alarm Code.KOC-L-006 : KOC Standard for Fire and Gas Detection
Equipments.KOC-G-004 : KOC Standard for Packing, Marking and
Documentation.KOC-G-007 : KOC Standard for Basic Design Data.KOC-G-009 : KOC Standard for Spare Parts and Maintenance
Data.
1.4 CONFLICTS
In the event of conflict between this Specification and the Standards/Codesreferred herein, the most stringent requirement shall apply.
1.5 SYSTEM DESCRIPTION
The Fire Alarm System supplied under this specification shall be amicroprocessor-based network system. All Control Panel Assembliesand connected Field Appliances shall be both designed andmanufactured by the same company, and shall be tested and cross-listed as compatible to ensure that a fully functioning Fire Alarm Systemis installed.
The Fire Alarm System shall be fully integrated with the BuildingManagement System (BMS – Refer Specification 15950) and theSecurity System, where by the Fire Alarm System, the BMS & theSecurity system can be monitored and controlled from a commonworkstation, with one single alarm history and Alarm/operator log of allthe integrated systems. Multiple windows showing the various systemson a single screen without a common database will not be acceptable.
The integration & compatibility between the Fire Alarm System, the BMSand the Security System shall be confirmed in writing by each of theindividual system suppliers. Further the Contractor will have to providereference installation of such a successful integrated solution.
The system shall be a true analogue in operation, with each sensordevice providing signal levels relative to the current operatingenvironment. These analogue samples shall be transmitted to the controlpanel in a digital format to reduce possible corruption. Thresholdconditions shall be located by polling the devices every 4 seconds and256 data readings shall be taken to analyze the activity.
The system shall allow for loading and editing instructions and operating
Small Boats Harbours Project 16720/3 Fire Alarm System
sequences as necessary. The system shall be capable of on-siteprogramming to accommodate system expansion and facilitate changesin operation. All software operations shall be stored in a non-volatileprogrammable memory within the fire alarm control unit. Loss of primaryand secondary power shall not erase the instructions stored in memory.
The CPU shall provide Dual configuration programs which allow foroptimal system protection and commissioning efficiency with one activeand one reserve.
All initiating devices shall be connected to the main control panel directlyvia 2 wire loop circuits (Class A). The notification devices shall be on aseparate circuit.
supervisory monitoring facilities.
Short or open circuit wiring shall be monitored by the Control Panel.Fault isolation shall be provided to protect the system‟s ‟FieldWiring/Circuit Monitors” which isolate/protect sections of a loop circuit.
Short or open circuit wiring fault isolation should be provided via built-in-isolators every device to protect the system. “Field Wiring/CircuitMonitors” which isolate/protect sections of a loop circuit, i.e. agroup/zone of field devices are not acceptable.
Smoke /Heat Sensor, Duct and Beam Sensors, Fire Alarm InterfaceUnits, and Manual Call Points shall be installed on the same loop.Electronic Sounders, Bells, Strobes ( Notification Devices) shall be on aseparate circuit or on the same circuit.
1. 6 SYSTEM OPERATION
In the event of a fire is reported from the smoke/heat Detectors, activation ofmanual call points or sprinkler operation the sequence of alarm operationshall be as follows:
When the fire condition is reported from public areas/corridors, this shallactivate a fire signal to be reported at the control panel and at central firemonitoring workstation. The system shall incorporate a maximum delayfor up to 3 minutes and if the alarm is not acknowledged in this timeperiod, the evacuation sounders shall be activated automatically to theaffected zone/floor plus the adjacent zone/floor above and below (to bedecided at the time of commissioning) for that affected block only. Thezones/floors other than the affected and its adjacent zones/ floors aboveand below shall be on alert condition and after a further delay of 3 secshall go on evacuate condition.
When a fire condition is reported from the offices this shall activate a firecondition to be reported at the control panel. The system shall
Small Boats Harbours Project 16720/4 Fire Alarm System
incorporate a maximum delay for up to 3 minutes and if the alarm is notacknowledged in this time period, the sensor‟s integral sounder shall beprogrammed to activate locally and after a further delay of 3 minutes ifthe alarm is still not acknowledged the evacuation sounders shall beactivated automatically to the affected zone/floor for that affected block
only. Further on the evacuation to proceed as stated earlier/ to be co-ordinated at the time of commissioning to suit the site requirements.
When a Manual Break Glass Unit is activated or a sprinkler flow switchis operated, then the evacuation shall be transmitted immediately to theaffected zone/floor plus the adjacent zones/the floor above and the floorbelow of the individual blocks. The signal to the other floors shall be aspreviously described.
In each of the above cases, upon initiation of an evacuation signal all theelectronic sounders in areas such as plant rooms and emergency
staircase shall operate immediately. The signals shall not discriminatewith zones/floors.
following to be agreed as a part of the overall Emergency / Engineeringpolicy.
Signal to all elevator machine rooms indicating fire status (to controllifts)
Release doors normally locked by magnetic devices.
Release doors normally held open by magnetic devices
Shutdown mechanical equipment ventilation plant Shutdown general exhaust fans
Start up smoke extract fans
Start up exhaust make up fans
Start up stair vestibule pressurization fans
Automatically operate motorized volume control fire dampers
Initiate alert signals in all panels
Shut down of Air Handling Units
Sprinkler valves, flow switches monitored valves and other system in thebuilding shall be directly supervised by the fire alarm systems. Theseshall include but not limited to the following:
Building Automation
Emergency lighting system
Security system
Standby generator installation
1. 7 PRODUCT DATA
The system product data shall be submitted in its entirety includingmanufacturer operating and maintenance manuals, all CAD drawings for the
installed system in the KOC Small Boats Harbours Project and certificate ofservice training.
Small Boats Harbours Project 16720/5 Fire Alarm System
1. 8 QUALIFICATIONS
The system vendor/installer shall provide proof of their qualifications asFactory Authorization and Factory Training for the product(s) specified herein.
These qualification credentials shall not be more than two years old, toensure up-to-date product and application knowledge on the part of theinstalling vendor.
The contractor shall ensure all system components offered should be from asingle manufacturer source that shall be on the local fire brigade firedepartment list of approved manufacture.
The vendor shall submit comprehensive set of document comprising workingdrawings, catalogues and technical descriptive literature and manuals forapproval prior to ordering any equipment and commence with actual
installation works.
A copy of the manufacturers‟ warranty shall be provided with closeoutdocumentation and included with the operation and installation manuals.
A. Factory trained and authorized system engineers shall perform start-uptask. A contractor under the direction of the Factory Trained and Authorized Engineered Systems Distributor may perform certainfunctions of the Systems Start-up Procedure.
B. Approved Manufactures Instructions and Operation Manuals shall besupplied to KOC Small Boats Harbours Project Superintendent. A“Generic” or “Typical” Owners‟ Instruction and Operation Manual shallnot be acceptable to fulfill this requirement.
C. The Factory Trained and Authorized Engineered Systems Distributorshall perform. Commissioning of the installed system under thesupervision of Owners‟ Representative Engineer, and a Representativeof the General Contractor, if deemed appropriate.
1.9 MAINTENANCE
The Factory Trained and Authorized Engineered Systems Distributor whodesigned and installed this system shall provide a separate maintenancecontract after guarantee period for a period of 1 Years from the date ofsystem commissioning.
This Fire Alarm System Specification must be conformed to in its entirety toensure that the installed and programmed Fire Alarm System willaccommodate all of the future requirements and operations required by theproject.
Small Boats Harbours Project 16720/6 Fire Alarm System
1.10 EQUIPMENT
General Equipment and Material Requirements
The equipment furnished for this project shall be new and unused. The
components and systems shall be designed for uninterrupted duty. Theequipment, materials, accessories, devices, and other facilities coveredby this specification or noted on contract drawings and installationspecifications shall be the best suited for the intended use and shall beprovided by a single manufacturer.
The manufacturer‟s representative and a verification certificatepresented upon completion shall verify system installation andoperations. The manufacturer‟s representative shall be responsible foran on-site demonstration of the operation of the system and initial stafftraining as required by the Architect and/or Consulting Engineer.
The system shall be capable of detecting the electrical location of eachintelligent device including new and existing devices. It shall be possibleto display the intelligent device map on the laptop PC and at centralworkstations.
In addition, “As-Built” riser and wiring diagrams reflecting all T-Taps,each programmed device characteristic including detector type, basetype, serial number, sensitivity setting and wire configurations will beprovided to the Architect/Engineer, based on the information gathered
during the verification process described above.
It shall be possible for authorized service personnel using aProgram/Service Tool or laptop PC to change the personality / functionof Device to meet changes in building layout or environment. Themanufacturer‟s representative and a verification certificate presentedupon completion shall verify system changes.
1.11 MAIN ALARM CONTROL PANEL
The control and indicator panel should be designed to meet the
requirements of BS5839 Part 4 or NFPA72. The Control panels shall beUL Listed and FM Approved.
The control panel shall perform multi-task microcomputer controlledfunctions, of which each loop circuit shall equipped with a dedicatedmicroprocessor to communicate with the main controller
The system shall be modular in design to allow for future expansionwithout any major changes to system hardware and software.
The control panel shall provide communications to workstations and/ordedicated graphics display system, via Ethernet LAN. The system shallsupport dual Ethernet connections as well as software downloads and
Small Boats Harbours Project 16720/7 Fire Alarm System
uploads with LAN operation speed.
integral RAM card with lithium battery back- up. The use of “burnt”“EPROM‟S” to retain site data in the event of a malfunction shall not be
accepted.
The printed circuit board of the controller shall be fully monitored, forfault conditions with appropriate watchdogs to ensure continuousoperation of the system.
The relevant information shall be displayed on the LCD display of thepanel and/or shall be printed using an integral system printer.
System logs
The control panel shall keep log of the following that shall be eitherprinted or displayed:
The Alarm and Trouble History logs shall have a capacity up to 1300total events.
o Alarm Panel:
Indicators
Panel Mains Electrical Power Supply „ON‟: Panel „LED‟ Green Light shall
remain illuminated.
Panel Mains Electrical Power Supply „OFF‟: Panel LED Light shallextinguish and the fault shall be reported at central maintenance positionand local shall buzzer operates (Emergency Mode)
The panel shall deploy LCD display medium for all alphanumericmessages. The display shall comprise of 40 characters in width by 16lines super-twist with automatic backlight on activity.
On board Thermal printer shall provide be printouts.
The printer shall provide the following facility and options to the user:
Paper Feed
Test
ON and OFF.
The printer shall automatically disable when the panel-hinged door is in
the locked position regardless of the last operation.
Small Boats Harbours Project 16720/9 Fire Alarm System
Modify the panel clock, outstation labels and specific site configurationdetails. (Clock to synchronized with hospital main GPS clock system)
Back-up data for the RAM card.
Third Level
Third Level engineering functions shall be carried out directly from thecontrol panel. Using an authorized access code.
The following functions shall be available:
Time Average Information, the analogue readings taken from sensorheads shall be stored in memory and shall be recalled at any time.These shall take the form of foreground, background values.
Find Outstation Facility, whereby by specifying a particular devicenumber and its associated loop number an LED or a sound output shallbe provided (dependent upon the type of device).
Reset and Allocate. This shall enable specific loops to be powered downand the allocation process whereby the panel “maps” out all externaldevices to be addressed.
Automatic Commissioning Mode. The panel shall perform an automaticsilence alarms and fire reset after a period of 10 seconds allowing simpleone-man commissioning to take place.
1.11a Fire Alarm Sub-Control Panel
The control and indicator panel should be designed to meet therequirements of BS5839 Part 4 or NFPA72. The Control panels shall beUL Listed and FM Approved.
The control panel shall perform multi-task microcomputer controlledfunctions, of which each loop circuit shall equipped with a dedicatedmicroprocessor to communicate with the main controller
The system shall be modular in design to allow for future expansionwithout any major changes to system hardware and software.
The control panel shall provide communications to workstations and/ordedicated graphics display system, via Ethernet LAN. The system shallsupport dual Ethernet connections as well as software downloads anduploads with LAN operation speed.
The specific data shall be field programmable and be stored on anintegral RAM card with lithium battery back- up. The use of “burnt”
“EPROM‟S” to retain site data in the event of a malfunction shall not beaccepted.
Small Boats Harbours Project 16720/10 Fire Alarm System
The printed circuit board of the controller shall be fully monitored, forfault conditions with appropriate watchdogs to ensure continuousoperation of the system.
The relevant information shall be displayed on the LCD display of thepanel and/or shall be printed using an integral system printer.
o System logs
The control panel shall keep log of the following that shall be eitherprinted or displayed:
The last 1300 events on a last in first out basis.
The previous 1300 panel events, all relevant events excluding theoperation of the fault buzzer cancellation.
The previous 1300 supervisory (non-fire) events.
Alarm Panel
Indicators
Panel Mains Electrical Power Supply „ON‟: Panel „LED‟ Green Light shallremain illuminated.
Panel Mains Electrical Power Supply „OFF‟: Panel LED Light shallextinguish and the fault shall be reported at central maintenance positionand local shall buzzer operates (Emergency Mode)
The panel shall deploy LCD display medium for all alphanumericmessages. The display shall comprise of 40 characters in width by 2
lines super-twist with automatic backlight on activity.
On board Thermal printer shall provide be printouts.
The printer shall provide the following facility and options to the user:
Paper Feed
Test
ON and OFF.
The printer shall automatically disable when the panel-hinged door is inthe locked position regardless of the last operation.
The printer operating with locked door shall have buffer capacity to store
Small Boats Harbours Project 16720/12 Fire Alarm System
details. (Clock to synchronized with hospital main GPS clock system)
Back-up data for the RAM card
Third Level
Third Level engineering functions shall be carried out directly from thecontrol panel. Using an authorized access code.
The following functions shall be available:
Time Average Information, the analogue readings taken from sensorheads shall be stored in memory and shall be recalled at any time.These shall take the form of foreground, background values.
Find Outstation Facility, whereby by specifying a particular devicenumber and its associated loop number an LED or a sound output shallbe provided (dependent upon the type of device).
Reset and Allocate. This shall enable specific loops to be powered downand the allocation process whereby the panel “maps” out all externaldevices to be addressed.
Automatic Commissioning mode or WalkTest that shall perform silent oraudible system test performs an automatic self –resetting test cycle andone man commissioning to take place.
1.11b Mains Power Supply
o Standby Batteries
The System shall operate with locally available power supply 240V+10% -15% @50 Hz.
The system shall comprise of an integral charger and 2 sets ofindividually monitored sealed maintenance free lead acid batteriesenclosed within a separate enclosure. The charger shall be preset at a
nominal DC output. The batteries shall provide standby power for periodof 24 hours (minimum) with a further 30 minutes under full/alarm/controlload conditions.
The charging current shall automatically adjust to suit with the ambienttemperature of the battery units.
Should a full discharge of the batteries take place, and then the systemshall be capable of re-charging units to 80% capacity within a period of24 hours.
Upon detection of malfunction of the charger/cells unit then an
Small Boats Harbours Project 16720/13 Fire Alarm System
appropriate fault message shall be displayed and reported at centralmaintenance control position, Individual messages shall include: -
Loss of Mains power
Batteries 1 -2 faulty
Batteries 1 - 2 discharged
Batteries 1 - 2 open circuit
The fault indication status shall clear automatically, as and when aparticular fault condition is resolved and shall not require manual restartof the system.
The battery enclosure with a key access hinged door shall be of thesame finished material as the fire alarm control panel or mounted on thePanel cabinet.
1.11c Loop Parameters
Individual loop circuits should accommodate the following parameters: -
Up to a maximum of 250 devices directly connected to the loop.
Up to 40 dedicated sounders /strobes/speech sounders on notificationcircuits. Sounders being connected on the 2 wire circuit.
A combination of up to 32 mimics and/or repeats panels on any one loop.
Up to 8 interface units with their own 24-hour standby per loop.
Up to 50, 4 way, loop powered and 100 single channel/zone moduleinterface units per loop.
The ability to spur off the detection loop using appropriate „T‟ breakerdevices, without any degradation of system capabilities or responsetimes.
1.12 COMPONENTS
1.12a Analogue Sensors and Terminal Plates
1. Terminal Plates
The manufacturer of the control system shall provide all AnalogueSensors and Terminal Plates. No other make of sensors i.e. mix matchsystem shall be accepted.
The terminal plates for interfacing between the loop wiring and thesensor head shall be available in 3 & 4 way options, manufactured in
Small Boats Harbours Project 16720/14 Fire Alarm System
2. Analogue Sensors
The sensors can be divided into 2-sub assemblies.
A. Electronics module which includes the sensing components and
short circuit isolating device which in the event of a single cablefault shall isolate the “culprit” piece of cable and maintain alldevices on the loop operational in less than 1 sec.
B. A removable, disposable detection chamber. The chamber of thesensor can be removed when contaminated without the need toremove the sensor electronics and therefore maintain the integrityof the detection loop.
The sensors at all times must remain in locked into positionand removal of the detection chamber and electronics
module should not require special tools.
The following types of Analogue Sensors will be available asstandard: -
Optical/Heat Sensor Optical/Heat Sensor and Sounder Optical/Heat with remote LED Optical/Heat with monitored line Heat Sensor Heat Sensor and Sounder. Beam Sensor (Pair) Duct Sensor
The sensors shall be compatible with the aforementionedSensor base. providing inter-changeability between sensorheads.
Each sensor shall have an integral L.E.D. light giving aflashing indication for a fire signal or a continuous indicationfor certain identification functions.
The Sensors shall be off-white in colour and manufacturedfrom ABS Plastic. The electronics and associated sensingelements shall be housed within the same unit.
The sensitivity of all sensors shall only be adjusted from thecontrol panel.
This may be carried out manually or on an automatic basisat set date and time. The sensitivity adjustment shall be asper UL 7 sensitivity settings ranging from 0.2% to 3.7%,
Small Boats Harbours Project 16720/15 Fire Alarm System
The sensitivity levels adjustment (as per LPCB reconditions)for hospital environment shall be available as follows:
State 0-Medium Sensitivity (Default) Suitable for most applications: a)Heat - grade 2 heat, b) Smoke - normal sensitivity.
State 1- High Sensitivity: Optical or Heat Grade 2, Used in areas orsituations where airborne smoke or dust is unlikely to occur and thereforea more sensitive detection is available For Mechanical and other similarrooms
State 5 -Medium Sensitivity: Optical only where high ambienttemperatures of greater than 40°c is Expected in the detection area.Smoke Detection only for common rooms, corridors, patients waiting areaetc.
State 8-Medium Sensitivity optical with time delay (20s time Constant) orgrade 2 heat. This state is useful in hotel bedrooms where low levelsSignal could occur for short durations. When smoke and heat occursimultaneously the time delay is effectively overridden, to provide fastdetection. (Patients Rooms)
State 10- Medium sensitivity optical with time delay (20s Time Constant)or grade heat. Similar performance as described in state 8 but without thetime delay override where low levels signal may occur. (Food loading bay,canteen and dining rooms.
State 11 Low Sensitivity optical or grade 3 heat If smoke detection isdesirable in areas where airborne Particles or smoke are normallypresent, or high temperatures (Up to 40°C) can be normally attained.State 12 Grade 1 heat only State 13 Grade 2 heat only State 14 Grade 3heat only No smoke detection. Can be used where airborne particles orSmoke could occur briefly or at specific times. Optical Detection can beused in conjunction with time blocks/slots to Enable /disable depending onapplication.
State 15: Sensor is disabled. (No detection)
3. Optical /Heat Sensor
The device shall combine two individual sensing elements to provideexcellent cover for both “types” of fires. (Slow smoldering and fast freeburning). The sensor shall comply with EN54 parts 5 & 7 (Equivalent)standards.
Optical Sensor: The optical sensing is carried out by means of an Infra-red LED transmitting a pulse of light across an obtuse angled chamber.The optical chamber shall be self-tested at periodically for correct
Small Boats Harbours Project 16720/16 Fire Alarm System
Heat Sensor: The heat sensing shall be carried out by two Thermistorsthat sample the surrounding environmental temperature.
It shall be capable of a minimum of nine possible defined states ofoperation
Optical and Heat Sensor Sounder
The specification for sensor element of the optical/heat sensor soundershall be the same as mentioned above for optical/heat sensors,however the unit shall incorporate an internal electronic sounder.
The internal electronic sounder facility should be an integral part of thedetection device and comprising of 2 piezo sounders giving low andhigh frequency output.
The combined sensor sounder should provide a sound pressure levelof 85 dB at a distance of one metre at bed head level.
Sensor sounder combined units should be installed on the same twocore loops as the other devices. For system integrity a separate powercable connection from the FACP/or from an external source to thesensor sounder shall not be accepted.
It shall be possible to connect a maximum of 125-combined sensorsounder to one detection loop.
Sensor sounders shall be capable of providing up to three differentsound signals that shall be selected/configured via the main controlpanel. The configuration of sound patterns shall not be carried outlocally at individual sounders.
The frequency of sound signals emitted shall meet BS5839 standardpart 1 that shall be as follows:
910Hz Low Sound
970 Hz High Sound
Each sounder shall have its own microprocessor to handle loopcommunications.
4. Heat Sensor
Two Thermistors that sample the surrounding air shall senseenvironmental temperature .The sensor shall comply with EN54 part 5 orUL Listed. The sensor shall be a dedicated “heat” only sensor that couldbe configured to provide 7 different states of operation. The sensitivityadjustment levels approved by LPCB or FM for hospital environment shallbe available as follows:
Small Boats Harbours Project 16720/17 Fire Alarm System
Default: Grade 2, rate of rise and fixed temperature.Suitable for general use at ambient temperatures up to 40°C.Providesdetection to Grade 2 performance as defined in BS5445 Part 5.
State 1
Grade 1, strong rate of temperature rise as well as fixed temperatureapplicable for areas with normally very steady low ambient temperaturese.g. cold stores. A strong rate of rise can signal a fire below the normal settemperature at 58°C.
State 2 Grade 1, limited rate of rise.
Applicable for normal ambient temperatures where temperature variationsare expected up to 40°C, but faster response than grade 2 is required e.g.
hotel bedroom.
State 5
High temperature with rate of rise provides detection as specified byRange 1 (BS5445: Part 8) for ambient temperatures up to 70°C with a rateof raise feature. Fixed temperature will operate at 84°C.
State 6
High temperatures with no rate of rise provides detection as specified byRange 1 (BS5445: Part 8) for ambient temperatures up to 70°C with norate of raise feature shall operate at 84°C.
State 15 the sensor is disabled. No detection
5. Heat Sensor Sounder
The specification sensor element for the heat sensor sounder shall bethe same as mentioned above for the heat sensor, however the deviceshall incorporate and internal electronic sounder.
The internal electronic sounder shall be an integral part of thedetection device comprising of two piezo sounders that shall generatelow and high frequency signal.
The specification for sounder shall be same for as for combinedsounder mentioned above for optical sensor sounder.
6. Beam Sensors
Beam Sensors shall not need different control/supply equipment or
Small Boats Harbours Project 16720/18 Fire Alarm System
Beam receiver and transmitter devices must be connected on thesame 2-wire circuit.
The main control panel shall adjust the gain of respective beamsensors either by setting a level through the control panel (direct) or by
automatically adjusting the gain to a suitable level for ambientconditions (auto gain).
The panel shall also allow facilities to enable beams to be aligned byone person. This shall involve the use of flashing the red L.E.D. toascertain signal levels.
7. Duct Sensors
The device shall employ the aforementioned Optical/Heat sensor toprovide environmental information. Probes are fitted to pick up smokein ventilation ducts. This unit is particularly suitable for sensing smokeparticles in ducting that is likely to be in large quantity and flowing fairlyquickly.
The states of operation will be as described for the Optical/HeatSensors.
1.12b Manual Call Points (MCP)
o The manual initiation devices shall be electrically compatible with all of the
aforementioned sensor types. Each MCP shall contain its ownmicroprocessor providing a less than one second response time frominitiation to indication and control panel action.
o The MCP shall be available for either semi-flush or surface fixing. Semi-flush flanges shall be available in Black.
o Frangible glass shall be utilized, allowing for complete removal uponoperation. The inscriptions text and marks shall be screened onto theglass.
The device shall be tested with a special key, supplied as standard, withoutthe need to either remove the front cover and/or breaking the glass.
Upon activation of the break glass (BG) the integral LED shall flash toindicate that BG is in operation, and this shall be cancelled only after thecompletion of the reset procedure. The system must not allow a “Fire” resetto take place until a new glass has been correctly inserted.
Should a “Fire” reset is operated with a MCP is still operational the panelshall inform the user of the situation, e.g.
Small Boats Harbours Project 16720/19 Fire Alarm System
Please investigate and try again”.
These devices shall comply fully with BS5839 Part 2.
Carbon Monoxide (CO) Fire Detector
The Carbon Monoxide (CO) fire detectors shall be designed to provide earlywarning of a slow smoldering fire whilst reducing the incidences of falsealarms.
The CO detectors shall be approved and listed by the Loss PreventionCertification Board (LPCB).
The detectors shall have a high tolerance of where they can be sited due tothe diffusion nature of the gas.
The CO detectors shall monitor and use rapid changes in temperature toincrease the normal sensitivity of the CO sensor to obtain an improvedresponse to fast burning fires where, typically, the levels of CO would bereduced.
The CO detector shall be capable of operating as a single address employingboth detection technologies and as a multiple addressed device using 2addresses. Using 2 addresses, the detector shall be capable of operating asa heat detector and a CO detector simultaneously thus providing alarmverification in a single detector.
The detector shall not be affected by the build up of dust deposits. The detector shall not be affected by insects. The sensitivity of the detector shall be able to be adjusted from the control
panel. The detectors shall be designed to have high resistance to contamination and
corrosion. The detectors shall include RFI screening and feed-through connecting
components to minimize the effect of radiated and conducted electricalinterference.
The Fire Alarm contractor shall have available the following versions of thedetector to meet different applications:
Analogue addressable - adjustable sensitivity Conventional - normal sensitivity
Detector shall incorporate an LED, clearly visible from ground level at all
angles. The LED‟s shall pulse to indicate they are communicating and willlight permanently when in alarm. For any areas where complete darkness isrequired, it shall be possible to programme individual detector LED‟s not topulse during the quiescent state.
Remote Indicator Module
The remote indicator module shall provide a remote indication for anyconventional or analogue addressable detector that may be located in anenclosed or locked compartment.
The remote indicator module shall be driven directly from its associated local
Small Boats Harbours Project 16720/20 Fire Alarm System
The connection to the remote indicator module shall be monitored for openand short-circuits.
Despite being connected to a specific detector, the LED indicator modulemust be capable of being programmed to respond to any single detector ora group of detectors as required.
Combustible Gas Detector
The principle of operation of the catalytic sensor shall depend upon theoxidation of flammable gas, which causes the temperature of the catalyticsensing element (Filament, Pellistors or bead) to change as a function of theconcentration of gas detected. A bridge circuit shall be used to determinethe change in electrical resistance and the apparatus shall be calibrated toprovide indications of gas concentrations.
The detector shall be a self contained device comprising of sensor elementand any monitoring and signal conditioning electronics required to provide a
linear 4-20 mA output signal to monitoring modules in the addressable loopof the building Fire Alarm System.
The gas detector housing shall be supplied complete with sensor unit,terminal housing, flashback arrestor, duct mount kit and any otherattachments necessary to enable the detector to function correctly in theambient conditions.
The apparatus shall be suitable for the detection of combustible gases orvapour concentrations with air from 0% to 100% LEL.
The time of response of the detector t50 shall not be greater than 10 secs,and t90 shall not be greater than 30 secs.
Normal variations in the ambient conditions shall not affect the performanceof the detectors.
The detector shall be provided with necessary electronic circuitry to avoidfalse alarms and an automatic low sensitivity check for ensuring monitoringintegrity.
The guaranteed minimum operational life of combustible gas sensor shall be2 years.
Gas detectors and their junction boxes or housing shall be certifiedintrinsically safe Exib or flameproof Exd as required per area classification.
The detector shall have provision for one-man calibration and acomprehensive calibration kit shall be supplied to facilitate regular checking
and re-calibration of the flammable gas detectors. The alarm output contacts or signal outputs of a combustible gas detectorshall be of a latching type requiring a deliberate manual action to reset.
Toxic Gas Detector
Toxic gas (H2S) detectors shall be based on electrochemical celltechnology. They shall be suitable for detecting H,S in the range of 0-100ppm.
The detector shall be a self contained device comprising of sensor elementand all monitoring and signal conditioning electronics required to provide a
linear 4-20 mA output signal to monitoring modules in the addressable loopof the building Fire Alarm System.
Small Boats Harbours Project 16720/21 Fire Alarm System
The H2S gas detector housing shall be supplied complete with sensor unit,terminal housing, flashback arrestor, duct mount kit and any otherattachments necessary to enable the detector to function correctly in thesevere ambient conditions.
With all attachments fitted (including filters) the detector output shall achieve
20% of actual H2S concentration within 10 seconds and 50% within 30seconds.
Gas detection instrument and their components used for H2S detection shallbe constructed of materials resistant to or protected against corrosion due tothe presence of H2S.
The guaranteed minimum operational life of sensors shall be two (2) years. Gas detectors and their junction boxes or housing shall be certified
intrinsically safe Exib or flameproof Exd as required per area classification. The detector shall have provision for one-man calibration and a
comprehensive calibration kit shall be supplied to facilitate regular checkingand re-calibration of the flammable gas detectors.
The alarm output contacts or signal outputs of a combustible gas detectorshall be of a latching type requiring a deliberate manual action to reset.
1.12c Sound Signal
Electronic sounders shall be connected on a separate circuit from theInitiating devices. Fire Alarm system sounder tone shall be differenti fromthe Gas Alarm system sounder tone.
These units should be similar in colour to the sensors previouslydetailed; and suitable for indoor applications up to a rating of IP42 or
Outdoor applications when using the environmentally protected deviceshall provide ingress protection to a rating of IP54.
These devices should be available in 3-way configuration allowing forspurs from the detection loop to be performed without affecting theperformance of the detection loop or the devices on the spur.
Sounders should be capable of providing the following minimum soundlevels:
a distance of one metre The volume level shall be selected on a localbasis, by means of a link on the sounder PCB. And a potentiometerallowing sound output to be adjusted to zero when set at the low sound
output level.
The sounders shall provide up to three different sound signals that shallbe selected/configured via the main control panel. The configuration ofsounder patterns shall not be carried out locally at individual sounders.
The frequency of sound signals emitted shall be meet with BS5839 Part1 and NFPA 72 Standard:
1. Beacon Control. The Fire Alarm system beacon shall be colored Redwhile the Gas Detection system beacon shall be colored yellow..
Loop wired sounders shall be grouped or “SECTORED” together to
Small Boats Harbours Project 16720/22 Fire Alarm System
provide phased or delayed evacuation procedures. All linking ofsounders and output patterns shall be easily configured within thecontrol panel software, giving flexibility of use should any of the sitecriteria change at a later date.
2. Voice Alarm Sounders
All Alarm sounders shall be connected to the Notification Circuit. Thealarm sounders shall incorporate tones separately for Fire Detectionand Gas Detection. This range should offer variants from IP 31 toIP65 depending on Client‟s requirements.
The sounder should consume less power thus enabling to have moresounders in the same loop.
All low profile sounders shall have the option of integral strobe that iscompletely loop powered. The strobe option shall be equivalent to astandard 3w xenon strobe and uses 1/20 of the power. The strobeelement of the sounders shall be fully monitored for circuit failures.
With introduction of voice enhanced sounders it is possible to have aloop powered bell sound for the first time as well as standard speechmessages.
For commissioning purposes the system shall have an option to usethe Handy Link IR remote control to turn individual sounders andadjusts the sound remotely password access at the control
Panel is required for better system integrity. Four voice phrases anda bell sound are every hour using VLF tone. Voice and Tone modecan be freely mixed within the same sounder. All message andstrobe signals shall be synchronized across the same control panel.
In addition to the following option, it should have a backwardcompatible version of the system sounder for replacement to theexisting system without the need to upgrade the system softwareStandard voice should be as follows:
Alert message (female voice)
“An incident has been reported in the building, please wait for further
Instructions”
Alarm message 1(female voice)
“Attention please, this is an emergency please leave the buildingimmediately by the nearest available exit ”
Small Boats Harbours Project 16720/23 Fire Alarm System
“This is the fire alarm”. Please leave the building immediately by thenearest available exit wait further instructions”
Test message (female voice)
“This is a test message, Please ignore and no action is required
1.13 INTERFACE UNITS
These devices shall directly connect to the loop.Three types of self-contained wall mounted units shall be available as astandard as follows:
Loop Driven I/F Units.
Loop Driven Single Channel interface units
I/F Units complete with Integral Batteries.
i. Loop Driven Interface Unit
Loop driven interface devices shall accept 4 - input signals, providing 4 outputsignals or any combination of either.Dependent upon the specific application I/P signals may be interpreted by thesystem as any of the following: -
Fire Signal I/PFault Signal I/PSupervisory Signal I/P
The exact nature of I/P shall be selected by means of an on-board DILswitch. For Fire and Sprinkler Flow switches I/P applications a 10second delay election shall be available as standard.
These units can be configured accept and or supply clean contactsignals normally open or normally closed. The switched voltage outputs
or inputs shall not be accepted.
The devices shall not require any form of external power supply and arefully maintained under mains power failure condition with the maincontrol panel‟s standby batteries.
The other outstation previously mentioned loop driven interface unitsshould contain its own local processor to handle all signalling and loopcommunications.
Small Boats Harbours Project 16720/24 Fire Alarm System
ii. Single Channel Loop Powered Interface Unit
Loop driven interface devices should be capable of accepting either 1 I/Psignals, providing 1output signals or any combination of either.
Dependent upon the specific application I/P signals may be interpretedby the system as any of the following: -
Fire Signal I/P Fault Signal I/P Supervisory Signal I/P
The exact nature of signal selected by means of an on-board DIL
Switches for fire and Sprinkler Flow Switches I/P as a standardapplication selection of 10 second delay shall be available.
These units shall be configured to supply clean contact signals innormally open or normally closed position. The switched voltage outputsor inputs shall be accepted.
In case of mains power failure, the devices shall not need any form ofexternal power supply and devices shall be fully maintained main controlpanel‟s standby batteries.
When used as an output, the device shall be provided with single polechange over contacts for control of plants, door release units etc. Thecontacts shall be rated at five amps at a nominal voltage of 240V AC.
As with other outstation previously mentioned loop driven interface unitshall be equipped a local processor to handle all signaling and loopcommunications. (iii) I/F Unit complete with Batteries
The interface units shall require a separate power supply of 240V A.C.and integral 24V, 2.0AH battery pack.
The unit shall support 4 channels that shall be configured as anypermutation of inputs and/or outputs.
Input channels shall support the specified manufacturers current rangeof conventional detectors and manual call points, these being 24V D.C.operational.
The circuits shall be fully monitored for open and short circuit faults.(Provided the devices are installed and correctly terminated with E.O.Lresistor).
Output channels shall provide a 24V output in the event of an alarm.
Small Boats Harbours Project 16720/25 Fire Alarm System
That shall be used to drive conventional bells/relays. (Provided thedevices are installed and terminated correctly with an E.O.L resistor).
The output shall be fully monitored for open and short circuit faults.
The total alarm load of 500mA at 24v DC shall be provided from theinterface unit in the event an alarm condition is initiated.
An auxiliary, 24v DC, 500mA, power supply shall be available from theinterface unit for the control of ancillary services.
The enclosure shall have the provision to mount up to 4 octal baserelays for remote signaling along with a suitable voltage barrier.
In the event of any of the above faults occurring or a problem developingwith the mains or battery supply, a suitable fault message will bedisplayed throughout the system, e.g.
A. The manufacturers shall be selected from the KOC list of approvedmanufacturers.
1.16 WARRANTY
A. Special Warranty: Submit written guarantee signed by the contractor or
the manufacturer for the period of 2 years from the date of substantial
completion. The guarantee shall cover the repair and replacement of
defective materials and workmanship as directed by the engineer except
where any specific warranty from a supplier or manufacturer extends for
a longer time.
1.17 DEMONSTRATION AND TRAINING
A. Engage a factory-authorized service representative to train KOC'smaintenance personnel to adjust, operate, and maintain Fire AlarmSystem including software.
