IS 2189:1999 is the Indian Standard (BIS) for selection, installation and maintenance of automatic fire detection and alarm system. This code establishes the guidelines for the planning, design, selection, installation, and maintenance of automatic fire detection and alarm systems. It covers zoning rules, detector spacing, wiring requirements, and integration with other building safety systems to ensure reliable early warning during fire incidents.
Provides guidelines for the planning, design, installation, testing, and maintenance of automatic fire detection and alarm systems.
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Max Area per Detection Zone | 2000 sq.m | 2000 sq.m and should not span more than one fire compartment | BS 5839-1:2017 |
| Smoke Detector Coverage Area (Typical, <5m ceiling) | Max 100 sq.m per detector (from Annex B) | 83.6 sq.m (900 sq.ft) per detector, based on 9.1m (30 ft) spacing | NFPA 72-2022 |
| Max Detectors per Conventional Zone | 30 detectors | Not explicitly limited by number; constrained by area, search distance, and manufacturer's limits. | NFPA 72-2022 |
| Standby Power Requirement | 24 hours standby + 30 minutes in alarm | 24 hours standby + 5 minutes in alarm (for non-voice systems) | NFPA 72-2022 |
| Manual Call Point (MCP) Mounting Height | 1.4 m from finished floor level | 1.07 m to 1.22 m (42 in to 48 in) to the activation part | NFPA 72-2022 |
| General Audibility Requirement | 65 dB(A) or 5 dB(A) above persistent ambient noise (>30s) | 15 dB(A) above average ambient sound OR 5 dB(A) above max sound (>60s) | NFPA 72-2022 |
| Standard Status | Withdrawn, superseded by IS 2189:2022 | Current | NFPA 72-2022 |