Comprehensive Guide to Materials Used in the Fire Alarm System (FAS) - Lceted

Comprehensive Guide to Materials Used in the Analog Addressable Fire Alarm System (FAS)

For project managers, understanding the materials and components associated with the Fire Alarm System is very critical. This document provides a complete overview of all the materials used in order to enable planning and effective execution.

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1. Core Components

1.1 Addressable Fire Alarm Panel

• Features:
• Intelligent, networkable, and expandable to accommodate at least two additional loops.
• Equipped with a battery backup and power supply unit (PSU).
• Necessary hardware and software for programming and configuration.
• Interface card for repeater panel connection.

1.2 Repeater Panel

• Active type, used for remote monitoring and controlling the system.

1.3 Loop Cards

• Enable the fire alarm panel to connect more detectors and modules.

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2. Detection Devices

2.1 Smoke cum Heat Detectors

• Above False Ceiling: Includes metal back boxes with glands for secure installation.
• Below False Ceiling/No False Ceiling: Designed for direct ceiling mounting.

2.2 Heat Detectors

• Intelligent and addressable, suitable for specific heat-sensitive areas.

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3. Notification and Control Devices

3.1 Manual Call Points (MCPs)

• Resettable, addressable, and weatherproof for outdoor applications.

3.2 Sounder cum Strobes

• Combined audible and visual alert devices with adjustable settings.

3.3 Local Scare Alarms

• Standalone devices for localized alerts.

3.4 Bell Control and Relay Modules

• Bell Control Modules: Manage operation of bells in the system.
• Relay Modules: Interfaces for controlling AHUs, fire dampers, access control systems, PA systems, and base builder fire panels.

3.5 Input Modules

• Interfaces for connecting devices like sprinkler flow switches and panic bars.

3.6 Short Circuit Isolators

• Protect the loop from disruptions caused by short circuits.

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4. Electrical and Installation Materials

4.1 Cables

• Specifications:
• 2-core x 1.5 sq.mm.
• Red twisted pair, shielded, multi-strand ATC (Annealed Tinned Copper), armored, and FRLS (Flame Retardant Low Smoke).

4.2 Metal Back Boxes

• Secure enclosures for mounting detectors and modules.

4.3 AC Contactors or Interposing Relays

• Used for tripping AHUs and other units as per system requirements.

4.4 Power Supply Unit (PSU)

• Ensures stable power for all connected devices.

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5. Installation Accessories

5.1 Conduits and Cable Trays

• For surface or concealed laying of cables.

5.2 Mounting Accessories

• Includes brackets, screws, plugs, and supports for secure installations.

5.3 Testing Tools

• Smoke/heat detector testers, multimeters, continuity testers, and insulation resistance testers.

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6. Project Management Insights

• Ensure compliance with relevant safety standards (NFPA, BS EN, or IS codes).
• Maintain a detailed inventory of all components, including serial numbers and loop IDs.
• Coordinate installation with HVAC, access control, and other systems.
• Provide accurate as-built drawings and programming details.
• Conduct system testing and hand over user manuals for future reference.

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This guide equips project managers with the knowledge required to oversee the SITC process effectively, ensuring a well-executed and compliant fire alarm system installation.