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NEMA BS 31005-2024 Training Manual on Fire Alarm Systems, 2024
- Section 1 General [Go to Page]
- 1.1 Scope
- 1.2 Referenced Standards
- 1.3 General Definitions
- Section 2 Basic Fire Alarm Systems [Go to Page]
- 2.1 General
- 2.2 Control Unit
- 2.3 Notification Methods [Go to Page]
- 2.3.1 Non-Coded System
- 2.3.2 Zoned Non-Coded System
- 2.3.3 Coded System
- 2.3.4 Master Coded System
- 2.3.5 March-Time Coded System
- 2.3.6 Selective Coded System
- 2.3.7 Signaling Pattern [Go to Page]
- 2.3.7.1 Temporal Code 3 Pattern
- 2.3.7.2 Temporal Code 4 Pattern
- 2.3.8 Zoned Coded System
- 2.4 Emergency Communications Systems (ECS) [Go to Page]
- 2.4.1 Other Types of Emergency Communications Systems [Go to Page]
- 2.4.1.1 In-Building and Wide-Area Mass Notification Systems
- 2.5 Control Unit Operation
- 2.6 Circuits and Pathways
- 2.7 Initiating Device Circuits (IDCs) [Go to Page]
- 2.7.1 Two-Wire, Class B Circuit, Using Initiating Devices and an End-of-Line Device
- 2.7.2 Four-Wire, Class A Circuit, Using Initiating Devices
- 2.8 Notification Appliance Circuits (NACs) [Go to Page]
- 2.8.1 Two-Wire, Class B, Direct Current Notification Appliance Circuits
- 2.8.2 Two-Wire, Class B, Audio Notification Appliance Circuits
- 2.8.3 Four-Wire, Class A, Notification Appliance Circuits
- 2.9 Signaling Line Circuits (SLC)
- 2.10 Power Supplies
- 2.11 Supplementary Circuits and Devices
- 2.12 Types of Life Safety Systems [Go to Page]
- 2.12.1 Protected Premises (Local) Fire Alarm System (Chapter 23, NFPA 72)
- 2.12.2 Dedicated Function Fire Alarm Systems and Emergency Control Functions [Go to Page]
- 2.12.2.1 Emergency Control Function Interfaces
- 2.12.3 In-Building Fire Emergency Voice/Alarm Communications Systems (Chapter 24, NFPA 72)
- 2.12.4 Combination Systems
- 2.12.5 Interconnected Fire Alarm Control Units
- 2.12.6 Emergency Communications Systems [Go to Page]
- 2.12.6.1 One-Way Emergency Communications System
- 2.12.6.2 In-Building Mass Notification Systems
- 2.12.6.3 Wide-Area Mass Notification System
- 2.12.6.4 Distributed Recipient Mass Notification Systems (DRMNS)
- 2.12.6.5 Mass Notification Layers
- 2.12.6.6 Intelligible Voice Messages
- 2.12.6.7 Risk Analysis for Mass Notification Systems
- 2.12.6.8 Emergency Response Plan
- 2.12.7 Supervising Station Alarm Systems (Chapter 26, NFPA 72)
- 2.12.8 Central Station Service Alarm Systems (Chapter 26, NFPA 72)
- 2.12.9 Proprietary Supervising Station Alarm Systems (Chapter 26, NFPA 72)
- 2.12.10 Remote Supervising Station Alarm Systems (Chapter 26, NFPA 72)
- 2.12.11 Public Emergency Alarm Reporting Systems (Chapter 27, NFPA 72)
- Section 3 Fire Alarm System Concepts [Go to Page]
- 3.1 General
- 3.2 Multiplexing or Networking
- 3.3 Circuit Interfaces (Transponders, Data Gathering Panels)
- 3.4 Multiplexed or Networked Outputs
- 3.5 Addressability
- 3.6 Intelligent (Smart) Circuit Interfaces
- 3.7 Programming
- 3.8 Addressable Devices
- 3.9 Multiplexing Technology
- 3.10 Active Multiplex
- 3.11 Digital Signaling
- 3.12 Analog Sensors
- 3.13 Intelligent Systems
- 3.14 Displays
- 3.15 Digital Alarm Communicator Systems (DACS)
- Section 4 Initiating Devices [Go to Page]
- 4.1 Manual and Automatic Alarm Initiating Devices
- 4.2 Manual Fire Alarm Boxes [Go to Page]
- 4.2.1 Non-Coded Fire Alarm Boxes
- 4.2.2 Coded Fire Alarm Boxes
- 4.2.3 Pre-Signal Fire Alarm Boxes
- 4.2.4 General Alarm Fire Alarm Boxes
- 4.2.5 Breakglass Fire Alarm Boxes
- 4.2.6 Single-Action Fire Alarm Boxes
- 4.2.7 Double-Action Fire Alarm Boxes
- 4.3 Automatic Alarm Initiating Devices [Go to Page]
- 4.3.1 Classification of Automatic Fire Detectors [Go to Page]
- 4.3.1.1 By Combustion Product Detected
- 4.3.1.2 By Physical Arrangement of Detector
- 4.3.1.3 By Operating Modes
- 4.3.2 Heat-Sensing Fire Detectors [Go to Page]
- 4.3.2.1 Operating Principles
- 4.3.2.2 Fixed-Temperature Detector [Go to Page]
- 4.3.2.2.1 Thermal Lag
- 4.3.2.2.2 Typical Examples of Fixed-Temperature Sensing Elements
- 4.3.2.3 Rate Compensation Detector
- 4.3.2.4 Rate-of-Rise Detector
- 4.3.3 Smoke-Sensing Fire Detectors [Go to Page]
- 4.3.3.1 Classification of Detectors by Operating Principles [Go to Page]
- 4.3.3.1.1 Ionization Smoke Detectors
- 4.3.3.1.2 Photoelectric Light Obscuration Smoke Detectors
- 4.3.3.1.3 Photoelectric Light Scattering Smoke Detectors
- 4.3.3.1.4 Combination Smoke Detectors
- 4.4 Switches on Automatic Fire Suppression Systems [Go to Page]
- 4.4.1 Waterflow Switch on Sprinkler Systems
- 4.4.2 Alarm Switches on Fire Suppression Systems
- 4.4.3 Supervisory Monitoring for Sprinkler Systems [Go to Page]
- 4.4.3.1 Valve Supervision
- 4.4.3.2 Pressure Supervision
- 4.4.3.3 Fire Pump Supervision
- 4.4.3.4 Engine-Driven Generator Supervision
- 4.5 Installation Wiring
- 4.6 Pathway Class—Circuit Classes for Conventional Initiating Device Circuit (IDC)
- Section 5 Notification Appliances [Go to Page]
- 5.1 General
- 5.2 Alarm Notification Appliances
- 5.3 Audible Alarm Notification Appliances [Go to Page]
- 5.3.1 Bells
- 5.3.2 Horns
- 5.3.3 Chimes
- 5.3.4 Buzzers
- 5.3.5 Sirens
- 5.3.6 Speakers
- 5.3.7 Electronic Alarms
- 5.4 Visual Alarm Notification Appliances
- 5.5 Combination Audible/Visual Notification Appliances
- 5.6 Exit Marking Audible Notification Appliance
- 5.7 Textual Audible Notification Appliance
- 5.8 Visual Notification Appliance
- 5.9 Textual Visual Notification Appliance [Go to Page]
- 5.9.1 Visual Annunciators
- 5.9.2 Lamp Annunciators
- 5.9.3 Drop-Type Annunciators
- 5.9.4 Incandescent Lamp
- 5.9.5 Solid-State Lamp
- 5.9.6 Fluorescent Lamp
- 5.10 Permanent Recorders [Go to Page]
- 5.10.1 Punch Registers
- 5.10.2 Print Recorders
- 5.10.3 Time Stamps
- 5.11 Installation Wiring
- Section 6 Installation Instructions for Life Safety Signaling Systems [Go to Page]
- 6.1 General
- 6.2 Location of System Components [Go to Page]
- 6.2.1 General
- 6.2.2 Control Units
- 6.2.3 Alarm Initiating Devices
- 6.2.4 Audible Alarm Notification Appliances
- 6.2.5 Visual Alarm Notification Appliances
- 6.2.6 Visual Alarm Signal Annunciators
- 6.2.7 Permanent Recorders
- 6.2.8 Trouble Signal Appliances
- 6.3 Power Supplies [Go to Page]
- 6.3.1 Number of Sources Required
- 6.3.2 Primary Power Supplies
- 6.3.3 Secondary Power Supplies
- 6.3.4 Batteries [Go to Page]
- 6.3.4.1 Storage Batteries
- 6.3.4.2 Primary (Dry Cell) Batteries
- 6.4 Requirements for Installation of Wiring and Equipment
- 6.5 Manufacturer’s Published Instructions
- 6.6 Local Codes
- 6.7 Types of Circuits
- 6.8 Intermixing of Circuits [Go to Page]
- 6.8.1 Non-Power-Limited Circuits and Conductors [Go to Page]
- 6.8.1.1 With Class 1 Circuits
- 6.8.1.2 With Power Supply Circuits
- 6.8.2 Power-Limited Circuits and Conductors (NFPA 70, Article 760-136) [Go to Page]
- 6.8.2.1 With Class 2 and Class 3 Circuits [Go to Page]
- 6.8.2.1.1 Class 2 Circuits
- 6.8.2.1.2 Class 3 Circuits
- 6.8.2.2 With Electric Light, Power, Class 1, NPLFA, and Medium-Powered Broadband Communications Circuit Conductors [Go to Page]
- 6.8.2.2.1 Separated by Barriers
- 6.8.2.2.2 Separated by Raceway Within Enclosures
- 6.8.2.2.3 Associated Systems Within Enclosures
- 6.8.2.2.4 Enclosures with Single Opening
- 6.8.2.2.5 Hoistways
- 6.8.2.2.6 Other Applications
- 6.9 Enclosed Versus Exposed Wiring
- 6.10 Selecting Conductors and Cables
- 6.11 Cable Markings
- 6.12 Identification of Circuits
- 6.13 Monitoring for Integrity
- 6.14 Lightning/Surge Protection (Circuit Protection)
- 6.15 Outside Wiring
- Section 7 System Startup Procedure [Go to Page]
- 7.1 General
- 7.2 Check of Installation Wiring [Go to Page]
- 7.2.1 Preliminary
- 7.2.2 Test for Extraneous Voltages
- 7.2.3 Test for Shorts and Opens [Go to Page]
- 7.2.3.1 Initiating Device Circuits
- 7.2.3.2 Notification Appliance Circuits
- 7.2.4 Test for Grounds
- 7.2.5 Visual Inspection
- 7.2.6 Check of Power Sources [Go to Page]
- 7.2.6.1 Old Alternating Current Systems
- 7.2.6.2 Older, Low-Voltage Direct Current Systems
- 7.3 Normal Operation (Normal Monitoring Condition)
- 7.4 Monitoring of Circuits for Integrity (Electrical Supervision) [Go to Page]
- 7.4.1 General
- 7.4.2 Power Supply Circuits
- 7.4.3 Initiating Device and Notification Appliance Circuits
- 7.4.4 Overcurrent Protection Devices
- 7.4.5 Municipal Circuits
- 7.4.6 Supplementary Circuits
- 7.4.7 Annunciator Circuits
- 7.5 Alarm Operation
- 7.6 Authority Having Jurisdiction
- Section 8 Proper Maintenance of Fire Alarm Systems [Go to Page]
- 8.1 Periodic Maintenance [Go to Page]
- 8.1.1 General
- 8.1.2 System Performance and Integrity
- 8.2 Fire Alarm Control Units [Go to Page]
- 8.2.1 Printed Circuit Board Assemblies of Modules
- 8.2.2 Relay Maintenance
- 8.2.3 Battery Charger Maintenance
- 8.2.4 Battery Maintenance
- 8.2.5 Fuses
- 8.2.6 Circuit Breakers
- 8.2.7 Condition of Control Unit Cabinets (Dust and Dirt Removal)
- 8.3 Non-Coded Manual Fire Alarm Boxes
- 8.4 Coded Manual Fire Alarm Boxes [Go to Page]
- 8.4.1 General
- 8.4.2 Spring-Driven Fire Alarm Boxes
- 8.4.3 Motor-Driven Coded Fire Alarm Boxes
- 8.5 Automatic Transmitters
- 8.6 Automatic Heat Detectors [Go to Page]
- 8.6.1 Fixed-Temperature Heat Detector
- 8.6.2 Rate-of-Rise Heat Detectors
- 8.6.3 Rate-Compensation Heat Detectors
- 8.6.4 Explosion-Proof Heat Detectors
- 8.7 Smoke Detectors
- 8.8 Sprinkler Waterflow Detectors [Go to Page]
- 8.8.1 Pressure Operated
- 8.8.2 Vane Operated
- 8.9 Gate-Valve Supervisory Contacts
- 8.10 Open Outside Screw and Yoke (OS & Y) Valve Supervisory Contacts
- 8.11 Pressure Switches
- 8.12 Tank Switches for High and Low Alarm Service on Gravity Tanks
- 8.13 Differential Pressure Switches
- 8.14 Inspector’s Test Valves
- 8.15 Notification Appliance—Alarm Horns
- 8.16 Notification Appliance—Alarm Bells
- 8.17 Strobe Notification Appliances
- 8.18 Trouble Bells and Buzzers
- 8.19 Remote Switches on Systems [Go to Page]