Fire & Fabrication safety
Fire protection fabrication combines hot work, high-pressure systems, hazardous suppression agents, and structural work at height. These practices protect workers and prevent accidental system impairment during installation and maintenance.
Hot work is the #1 ignition source on fire-protection jobs
Welding, grinding, and threading produce sparks in spaces that often contain flammable debris. Obtain a hot-work permit, clear the area of combustibles within 35 ft, post a fire watch for 60 minutes after work stops, and confirm a fire extinguisher is immediately accessible.
Pressurized cylinders require special handling
Clean agent and CO₂ cylinders are stored at 360–2000+ psi. Never apply heat, drop, or remove valve caps until cylinders are secured to a wall bracket or skid mount. CO₂ discharge in an enclosed space is immediately dangerous to life — ensure system is on test mode and room is vacated before any work.
Confirm system is on impairment before breaking into pipe
Before cutting, threading, or grooving into a charged fire-protection main, notify the monitoring station, AHJ, and building owner. Issue a formal impairment tag. Have a fire watch in place for the entire duration of the impairment.
Hydrostatic test at 200 psi — isolate the area
A pressurized piping failure during a hydrostatic test can cause serious injury. Clear the area of personnel, use calibrated gauges, and approach joints and welds from the side rather than head-on during the 2-hour hold.
Seismic bracing requires engineering sign-off
Sway braces calculated from NFPA 13 tables work for standard conditions. Seismic Zone D/E installations and irregular structures require a licensed PE to stamp the bracing design. Never omit or substitute brace hardware — it carries life-safety loading.
Confined space and elevated work rules apply
Fire pump rooms, tank vaults, and ceiling spaces may meet confined-space entry criteria. Falls from aerial lifts and pipe scaffolding are the leading cause of fire-protection installer injuries. Follow OSHA 1926 fall-protection and confined-space standards on every job.