High Sensitivity Smoke Detection Kelvin Miller www.kfp.co.uk
What is HART High Sensitivity Smoke Detection (HSSD)? Aspirating detection system Fan draws air through sampling pipework system Capable of detecting smoke concentration as low as 0.0025% obscuration per metre down to 1% Display Control Unit provides indications and controls
HART XL Detector Unit
Option without Display Control Unit Hart XL Detector Unit- Option without Display Control Unit Tri-colour LED Status Indicator Normal Pre-Alarm Alarm Fault
HART XL Detector Unit Main Control Board Laser Detector Unit Fan Assembly Clip-in modular assembly, removable cable connectors
Stages of Fire 3 4 Obscuration 4 Time Pre Alarm 2 Alarm 2 Alarm 1 Up to 1% Alarm 1 100% Obscuration Pre Alarm 2 Pre Alarm 1 3 4 Time
Kidde HSSD Performance Superior particle counting technology High immunity smoke discrimination Dust particle discrimination High immunity to unwanted alarms No filters Reliable & stable Automatic sensitivity & calibration checking Simple maintenance
Meeting our customers’ needs Kidde HSSD - Meeting our customers’ needs Superior performance Flexibility & simplicity High quality information High reliability Operator friendly Low cost of ownership Easy to install, configure & commission
Kidde HSSD Detector Operation Optical Sensor Control PCB Collimating Lens Solid State Laser Air Flow Sensor Receive Optics Detector Test LED
Kidde HSSD Particle Discrimination 10 micron particle size Typical smoke particle Upper threshold Lower 10 micron particle size Typical dust particle Upper threshold Lower Photodiode output
HSSD Market Aspirating HSSD has become widely accepted as a reliable smoke detection method HSSD is now standard practice in Electronic Data Processing (EDP) environments, telecommunications suites and computer rooms HSSD has become a viable alternative to other forms of detection in areas previously not considered such as warehouses, cold stores, production areas, shopping malls and heritage buildings HSSD is often used when other forms of detection prove ineffective or difficult to maintain
HSSD Market Design engineers are identifying more areas where aspirating HSSD will provide the best solution to an assessed risk On all new projects & retrofits there is scope to include HSSD & provide the end user with an improved detection solution HSSD can often be installed at comparable or at lower cost than other forms of detection
Why Hart Aspirating Smoke Detection? Earliest detection to enable business continuity Extra time is required for safe evacuation Unnecessary suppression release must be avoided Smoke is difficult to detect Environmentally challenging areas Aesthetics & concealed detection are important Maintenance access is limited
Earliest Detection to Enable Business Continuity Critical processes that cannot incur any business disruption Telecommunications facilities Computer rooms Banking operations Production facilities Internet Service Providers
Extra Time is Required for Controlled Evacuation Environments where rapid exit can be impeded Underground Stations Theatres Public buildings Airports
Smoke is Difficult to Detect Environments with high ceilings, high air flows or vast open areas provide unique characteristics Clean rooms Warehouses Aircraft hangars Computer rooms Atria
Unnecessary Suppression Release can be Avoided Early warning gives time to investigate to avoid unnecessary suppression release Telecommunication facilities EDP facilities Computer rooms Electrical sub-stations
Environmentally Challenging Areas Aggressive environments with high levels of pollution or extreme temperature conditions can be protected reliably with acceptable maintenance levels Cold Stores Production areas Paper mills Underground tunnels Mines
Aesthetics are Important & Replacement Impossible Interiors that must not be spoilt by unsightly conventional detectors - Hart XL can be installed unobtrusively Cathedrals Stately Homes Museums Art Galleries
Maintenance Access is Limited Hart XL can be located at an accessible location while the sampling pipework makes its way to the restricted area Warehouses Production machinery Prisons Restricted areas EMC Controlled areas Hospitals
Programming and Diagnostics Direct connection to PC for Programming and Downloading using LaserNet Software. No programmers or interfaces are required
Programming Options Fixed or automatically set sensitivity Hart XL 0.05%/m to 1%/m obscuration Programmable relays Referencing Latching or non latching alarms Two or Four levels of Alarm Diagnostics & Monitoring Download history & event log Full fault analysis Dial in & dial out via modem monitoring Intelligent interface module common alarm & fault relay outputs
History Log accessed through Lasernet
Kidde HSSD Networking Capability I. I. M. With the addition of the HART Intelligent Interface Module (IIM), up to 127 standard Hart XL can be networked and displayed on a PC monitor
Servicing and Maintenance Benefits Easy & quick to service & maintain Lower costs Shorter downtimes Reduced spares holdings
System Design Software New Updated SNIFF System Design Software Windows compatible Easy operation and clear displays Isometric drawings from several angles
SnifferPipe - a comprehensive range of red ABS smoke sampling pipe Efficient & robust Smooth bore facilitates air flow to detector Lightweight and easy to install High resistance to chemicals & weathering Wide temperature range, -40 to +80ºC
Conventional Detector Layout (Secondary Detection) BS6266 2.5m 5m FIRE ZONE PLAN
HSSD Layout (Secondary Detection) BS6266 Sampling pipes FIRE ZONE PLAN Sample Holes 2.5m 5m
Distributed sampling network
Primary Detection Where smoke will travel when air conditioning is operating Air handling units Duct detection
Primary Detection
In Cabinet sampling
BS6266 Wire Burn Test One Metre Test Wire Burn test Rig Burn wire for 1 minutes with a further two minutes allowed for the detector to respond 10/0.1mm pvc wire
Approvals LPCB - UK Vds - Germany UL and FM - USA Afnor - France Shangyen - China
Beam Smoke Detection
Guardall BM5 100m Linear Smoke Detector Optional LCD Display Multi-Language Support Event Memory Heat Channel Four Output Relays
Beam Smoke Detection 25m 1% Ob/m 20m 10 m 3 to 5% Ob/m
BM5 Features Real-time Clock Programmable Outputs Programmable Thresholds Smoke Heat Smoke Pre-alarm Heat Pre-Alarm
BM5 Operation 10.5 V to 33 V Operation Two Line LCD Keypad Engineer & User PINs Electronic Alignment Fix Beam Level from Keypad Laser Alignment
Approvals LPC Approval to BS5839 prEN 54 Part 12 Approval in France & Germany Designed to UL Requirements 150m Non-approved Unit
Linear Heat Detection
What is Linear Heat Detection? Continuous heat detector in the form of a cable - Alarmline Analogue: averaging heat detector - Alarmline Digital: fixed temperature heat detector
Analogue LHD Cable Definition: - Multi-conductor cable containing insulators whose resistance varies proportionately to changes in temperature - Re-settable, provided temperature does not exceed burn-off point of PVC coating - Alarm level adjusted via controller
Alarmline Analogue LHD Cables High resistance - standard applications Nylon extruded - chemical resistance Bronze braided - increased mechanical protection over standard blue Stainless Steel braided over nylon extrusion - offshore applications
LHD 4 Controller
LHD 4 Controller Features - Alarm level adjusted via moveable link - Open circuit and closed circuit fault monitoring - Fire and fault output to conventional fire alarm panels - Volt-free relay option for analogue addressable fire alarm panels - Eurocard 19” rack option
Digital LHD Cable Definition: - A cable which contains an insulator which melts at a specific temperature - Switch output provided when the alarm temperature is reached - Not re-settable
Alarmline Digital LHD Cables Polythene braid 70º C Nylon over sheath 70º C Polythene braid 90º C Nylon over sheath 90º C PVC 113º C PVC 180º C Fluoropolymer 238º C
Alarmline LHD - Benefits Flexible - Mechanically - Electrically Durable - Wide range of casings / braiding - Operating range -65º to +200º C - Unaffected by operating environment
Sensor Clips Edge clip ‘V’ Clip Sensor cable Sensor Neoprene Neoprene sleeve Cable tie ‘V’ Clip Sensor cable Neoprene sleeve
Applications Heavy industry Warehousing Storage tanks Conveyors and escalators Cable trays Floor & ceiling voids Tunnels Car parks
Racking Sensor Cable
Trays Traywork width 600mm maximum Sensor cable Power cables supports
Conveyor Heat sensing cable Idle rollers Conveyor Belt Conveyor return
Escalators Sensor Pad LHD Bronze Braided sensor cable
International Approvals Alarmline (Analogue) Alarmline (Digital) UK power generation - 5117 P 11 - EPA 022/215 Factory Mutual - OB 9A2.AY - OR 5A4.AY Chinese Fire Officers - MAAL 96652 Chinese Power Generation - NSTCFEPQ (Appr) 92005 German VdS (1995) UK power Generation - EPA 019-021 - EPA 206/220 - OD 6A9.AY - 300 5155 - 300 3834 - 300 8312 - 300 8933