Comprehensive Supply and Installation of Advanced Fire Detection and Hydrant Systems
Overview
Project Overview:
AMI Technologies Ltd. is proud to present a complete fire safety solution for APTECH CASWIER LTD., located at the prestigious BGMEA Complex (7th Floor - East Block), House: 7/7A, Dhaka. This comprehensive project encompasses the design, supply, installation, testing, and commissioning of state-of-the-art Fire Detection Systems and Fire Hydrant Systems, ensuring the highest standards of safety and compliance with national and international fire safety regulations.
As a leading garment industry establishment housed within the BGMEA Complex, APTECH CASWIER LTD. requires robust fire protection measures to safeguard its workforce, valuable assets, manufacturing equipment, and inventory. This project is designed to provide 24/7 fire safety coverage through intelligent early warning systems and immediate fire suppression capabilities, creating a secure working environment that meets both BNBC (Bangladesh National Building Code) and NFPA (National Fire Protection Association) standards.
Project Description:
1. FIRE DETECTION SYSTEM
System Architecture and Design:
The fire detection system for APTECH CASWIER LTD. is engineered using cutting-edge addressable technology that provides precise location identification of fire incidents, enabling rapid response and evacuation procedures. The system is designed with multiple zones covering the entire 7th-floor facility, including production areas, storage zones, administrative offices, electrical rooms, and emergency exits.
Main Control Panel:
The heart of the fire detection system features an advanced addressable fire alarm control panel from internationally recognized manufacturers (Cooper UK/Simplex USA/Hochiki USA). The control panel is strategically located in the main security office for continuous monitoring and immediate response capabilities. Key features include:
- Large touch-screen user interface for intuitive operation
- Real-time monitoring of all connected devices
- Event history buffer capable of storing 9,999 events with date/time stamps
- Multiple Class A Style 7 SLC (Signaling Line Circuit) loops supporting up to 250-318 addressable devices per loop
- Dedicated alarm, trouble, and AC power failure relays
- Integral short circuit isolators for enhanced system protection
- Network capability for future expansion and integration
- Battery backup system ensuring 24-hour standby power and 15-minute alarm operation
- UL/FM/LPCB certified components ensuring international quality standards
Detection Devices Distribution:
Smoke Detectors (Optical/Photoelectric Type): Intelligent addressable smoke detectors are installed throughout the facility with particular concentration in:
- Production and manufacturing floors where fabric dust and lint require specialized detection
- Administrative offices and meeting rooms
- Corridors and circulation areas
- Storage and warehouse sections
- Server rooms and IT infrastructure areas
- Each detector features non-directional smoke chambers, auto-drift compensation, and multi-sensor technology for reduced false alarms
Heat Detectors (Rate-of-Rise and Fixed Temperature): Heat detectors are strategically positioned in areas where smoke detectors may generate false alarms:
- Kitchen and pantry areas
- Boiler rooms and mechanical spaces
- Areas with high ambient dust or steam
- Parking and loading zones
- These detectors respond to rapid temperature increases or fixed threshold temperatures (typically 57°C or 79°C)
Multi-Criteria Detectors: Advanced multi-sensor detectors combining smoke, heat, and CO detection are installed in critical areas requiring the highest level of protection and accuracy in fire detection.
Manual Call Points (Break Glass Units): Manual call points are installed at every exit point, stairwell entrance, and strategic locations throughout the facility at a height of 1.4 meters from the floor level. These bright red, highly visible devices allow occupants to manually trigger the fire alarm system. All call points feature:
- Protective plastic elements to prevent accidental activation
- Integral address modules for precise location identification
- Resettable design with replaceable frangible elements
- Weather-resistant construction for areas near external openings
Notification Appliances:
Audio-Visual Alarm Devices: The system includes horn-strobe combinations and standalone sounders/beacons distributed throughout the facility to ensure audible and visual alarm signals reach all occupants, including those in high-noise production areas:
- Sound pressure levels exceeding 75 dBA at all locations
- Synchronized strobe lights meeting candela requirements for visual notification
- Distinctive alarm tones differentiating between alert, evacuation, and all-clear signals
- Weatherproof units for outdoor and semi-outdoor locations
System Wiring and Infrastructure:
All fire alarm system wiring utilizes UL-listed, fire-rated cables (TIANJIE/Soloarti/LLT brands) with the following specifications:
- FR-LSH (Flame Retardant Low Smoke Halogen-free) construction
- Red-colored outer sheath for easy identification
- Proper cable tray routing separate from power cables
- Adequate circuit protection and isolation
- Professional termination with proper labeling at all junction boxes
Input/Output Modules:
Addressable input and output modules are installed to interface the fire alarm system with:
- HVAC systems for automatic shutdown and smoke control
- Elevator recall systems for emergency response
- Electromagnetic door holders for fire door release
- Fire suppression system activation (if applicable)
- Emergency lighting systems
- Access control system integration
2. FIRE HYDRANT SYSTEM
System Design and Hydraulic Calculations:
The fire hydrant system is designed as a comprehensive wet-pipe system with adequate water supply, pressure, and flow rates to combat fire incidents effectively. The system is hydraulically calculated according to NFPA 14 standards for standpipe and hose systems, ensuring minimum flow rates of 500 LPM (liters per minute) at each outlet with residual pressure of 4.5 bar (65 PSI).
Water Supply and Storage:
Underground Water Tank: A dedicated underground water storage tank with minimum capacity of 100,000 liters (calculated based on fire flow requirements and building occupancy) is constructed or designated exclusively for fire protection purposes. The tank features:
- Reinforced concrete construction with waterproof internal coating
- Separate inlet and outlet connections
- Overflow pipe with proper drainage
- Level indicators and low-level alarm connections
- Access manhole for inspection and maintenance
- Anti-vortex device at suction point
Fire Pump Set:
The fire pump installation includes a complete package comprising:
Main Electric Fire Pump:
- Horizontal split-case or end-suction centrifugal pump (Bristol/Naffco/Sffeco brand)
- Capacity: 500-750 LPM at 7-10 bar pressure (sized according to hydraulic calculations)
- Motor: Three-phase, 415V, totally enclosed fan-cooled (TEFC) design
- FM/UL approved pump meeting NFPA 20 standards
- Cast iron or stainless steel construction for durability
Standby Diesel Fire Pump:
- Identical hydraulic performance to electric pump
- Diesel engine-driven for operation during power outages
- Self-priming capability
- Automatic start on pressure drop
- Day tank and main fuel tank with adequate capacity
- Battery-start system with charger
Jockey Pump (Pressure Maintenance Pump):
- Small capacity pump (50-75 LPM) maintaining system pressure
- Prevents main pump unnecessary starts due to minor leakage
- Automatic operation based on pressure switches
- Stainless steel construction
Fire Pump Controller:
- UL/FM listed automatic controller for electric pump
- Manual, automatic, and off operation modes
- Phase protection, overcurrent protection
- Run indication and fault alarms
- Connection to building management system (BMS)
Diesel Engine Controller:
- Automatic start/stop based on pressure sensing
- Engine parameters monitoring (temperature, oil pressure, battery voltage)
- Fail-to-start alarm after three attempts
- Weekly automatic test cycle
Piping Network and Distribution:
The fire hydrant piping system is designed as a gridded network for maximum reliability:
Main Riser Pipe:
- Hot-dip galvanized medium-grade steel pipes (IS 1239 Part-I)
- Diameter: 100mm-150mm depending on hydraulic calculations
- Vertical riser from pump room to topmost floor
- Proper pipe supports at every floor level
- Flexible couplings at pump discharge for vibration isolation
Branch Piping:
- Floor-wise distribution network
- Pipe sizes ranging from 65mm to 100mm
- Grooved pipe connections (Victaulic type) for easy installation and maintenance
- All pipes are hydrostatically tested at 15 bar pressure for 2 hours
- Proper pipe identification with red color coding
Valves and Fittings:
Gate Valves (OS&Y Type - Outside Screw and Yoke):
- Installed on main riser and branch lines
- Supervised open position
- Allows isolation of sections for maintenance
Non-Return Valves (Check Valves):
- Installed on pump discharge lines
- Prevents backflow and water hammer
- Swing check or silent check type
Pressure Relief Valves:
- Installed on pump discharge manifold
- Set at 10% above maximum system pressure
- Protects piping and equipment from over-pressure
Pressure Gauges:
- Installed at pump discharge, system high point, and test valve locations
- Glycerin-filled for vibration dampening
- Range: 0-16 bar
Alarm Check Valve:
- Installed on sprinkler system connection (if applicable)
- Triggers water flow alarm
Hydrant Outlets and Hose Stations:
Landing Valves (Hydrant Outlets): One hydrant outlet is installed at each floor level in the stairwell landing area, featuring:
- 63mm instantaneous male coupling (Storz type or threaded type)
- Double-headed configuration allowing simultaneous hose connection
- Brass construction with chrome plating
- Ball valve control for easy operation
- Protective cabinet housing with glass door
- Red color-coded cabinet with "FIRE HYDRANT" marking
Fire Hose and Accessories: Each hydrant station is equipped with:
- 30 meters of 63mm diameter fire hose (synthetic rubber-lined)
- Branch pipe (nozzle) with adjustable spray pattern
- Hose reel or folded hose storage in cabinet
- Spare gaskets and couplings
- Fire axe and emergency breaking tool
Fire Brigade Connection (FBC): An external fire brigade inlet connection is installed at the ground floor level, easily accessible from the street, featuring:
- Two 63mm inlet connections with non-return valves
- Brass or gunmetal construction
- Standard male instantaneous coupling
- Weather-protected cabinet with signage
- Allows fire brigade to boost system pressure during major incidents
System Testing and Commissioning:
Pressure Testing:
- All piping hydrostatically tested at 15 bar for 2 hours minimum
- Zero leakage tolerance
- Test certificates provided
Pump Performance Testing:
- Flow test at rated capacity using calibrated flow meter
- Pressure testing at shutoff, rated, and 150% flow conditions
- Simultaneous operation test of all pumps
- Weekly automatic test verification
System Integration Testing:
- Pump automatic start on pressure drop verification
- Jockey pump cycle testing
- Controller alarm and status indication testing
- Fire alarm system integration testing (if applicable)
3. COMPLIANCE AND STANDARDS:
This project is executed in full compliance with:
- Bangladesh National Building Code (BNBC) 2020
- NFPA 13: Standard for Installation of Sprinkler Systems
- NFPA 14: Standard for Installation of Standpipe Systems
- NFPA 20: Standard for Installation of Stationary Pumps
- NFPA 72: National Fire Alarm and Signaling Code
- Local Fire Service and Civil Defense requirements
- BGMEA/RSC (RMG Sustainability Council) guidelines
- Factory insurance requirements
4. PROJECT DELIVERABLES:
Upon completion, the following deliverables are provided:
- Complete as-built drawings in AutoCAD and PDF formats
- O&M (Operation and Maintenance) manuals for all equipment
- Test certificates and commissioning reports
- Training for facility management and security personnel
- Warranty certificates (minimum 1-2 years)
- AMC (Annual Maintenance Contract) proposal
- Fire Service approval certificates
- Compliance certificates from relevant authorities
5. MAINTENANCE AND SUPPORT:
AMI Technologies Ltd. offers comprehensive post-installation support:
- Monthly preventive maintenance visits
- Annual comprehensive system inspection and testing
- 24/7 emergency response service
- Spare parts availability and supply
- System upgrades and expansion services
- Periodic training refresher courses
- Compliance audit support
Project Benefits:
- Life Safety: Early fire detection and immediate suppression capability protect all occupants
- Asset Protection: Minimizes fire damage to valuable equipment, inventory, and infrastructure
- Business Continuity: Reduces downtime and operational disruption from fire incidents
- Regulatory Compliance: Meets all local and international fire safety standards
- Insurance Benefits: Potential reduction in insurance premiums with certified fire protection
- Reputation Enhancement: Demonstrates commitment to worker safety and responsible business practices
- Peace of Mind: 24/7 automated monitoring and protection
Conclusion:
This comprehensive fire detection and hydrant system project for APTECH CASWIER LTD. represents AMI Technologies Ltd.'s commitment to delivering world-class fire safety solutions. By combining advanced detection technology with robust fire suppression infrastructure, we ensure a safe working environment that meets the highest standards of protection and compliance. Our experienced team guarantees professional installation, thorough testing, and ongoing support to maintain system reliability for years to come.
Project Duration: 60-90 days from contract signing Warranty Period: 12-24 months from final commissioning Technical Support: Lifetime support with AMC options
For detailed quotations, technical specifications, or site surveys, please contact AMI Technologies Ltd.
