Fire Alarm System – Module 2

1. Course Description This module focuses on the practical execution of Fire Alarm System (FAS) projects. It guides technicians through the entire installation lifecycle—from selecting the right tools and Personal Protective Equipment (PPE) to cable management, device mounting, and diagnosing common system faults.

2. Core Modules & Topics

• Tools & Safety Protocols
  • Essential Toolkit: Usage of digital multimeters, wire strippers, precision screwdrivers, and drilling equipment.
  • PPE Requirements: Mandatory safety gear including insulated gloves, safety glasses, hard hats, and high-visibility vests.
  • Site Safety: Ladder safety and electrical hazard awareness.
• Cabling & Infrastructure
  • Cable Types: Differences between armored (underground/industrial) and unarmored (indoor) cables, and the use of fire-resistant (FRLS) cabling.
  • Wiring Standards: Standard color coding (Red for Positive, Black for Negative) and conduit installation rules (fill ratios, bending radius).
  • Circuit Topologies: Understanding Class A (loop return) vs. Class B (single path) wiring circuits.
• Device Installation & Addressing
  • Mounting Standards: Precise height requirements for devices (e.g., Manual Call Points at 1.4m, Sounders at 2.4m or 6 inches below ceiling).
  • Spacing Rules: Coverage radius for smoke (7.5m) and heat detectors (5.3m).
  • Addressing Methods: Techniques for assigning device IDs using DIP switches, rotary dials, or handheld programmers.
• Troubleshooting & Maintenance
  • Common Faults: Diagnosing “Open Circuit” (broken wire), “Short Circuit” (wire contact), and “Ground Faults” (insulation failure).
  • Multimeter Diagnostics: Testing loop resistance, battery voltage, and continuity to isolate issues.
  • Routine Maintenance: Cleaning optical chambers, tightening terminal connections, and load testing batteries.

3. Key Learning Outcomes

• Select and utilize the correct tools and PPE for FAS installation.
• Install cabling according to international color codes and containment standards.
• Mount detection and notification devices at code-compliant heights and spacing.
• Identify and repair common wiring faults using a multimeter.
• Perform basic preventive maintenance to ensure system longevity.