CMAFS Main Tunnel FA As-Builts.pdf

This document is a Fire Alarm System Plan for Cheyenne Mountain Air Force Station, North Tunnel - Node 19, comprising seven pages of technical drawings, specifications, and design details.

The plan provides comprehensive fire alarm system design documentation including operational matrices, battery calculations for the fire control panel (FCP) and backup power supplies (BPS #1 and BPS #2), voltage drop calculations, speaker circuit calculations, amplifier load calculations, and SLC (Signaling Line Circuit) loop address listings. The document specifies typical mounting elevations, correct wiring methods, and detailed wiring diagrams for various system components including SPAC/SHR smoke/heat detectors, manual pull stations, single input monitor modules, riser supervision modules, signal modules, synchronization modules, and relay modules. The fire alarm panel elevation diagram shows configuration with a 4" x 4" gutter minimum, FCP unit, and two BPS units (#1) with BC-1 backup components. Technical specifications include Class "A" wiring requirements, wire schedule standards, and device identifiers for detector placement and circuit integration throughout the North Access Tunnel segments (Segments 2 through 4 are detailed in elevation and plan views). The system design incorporates multiple detection zones, addressable device networks, and backup power provisioning to ensure comprehensive fire detection and alarm capabilities throughout the specified tunnel facility.