An I . L . S . M . is a method that Hospitals use to compensate for any life safety system that is impaired for any reason
Any project or work that impedes or disarms , deactivates or otherwise impairs any component of the fire alarm / suppression system for more than four hours
Fire Watch - the most basic form of ILSM is to conduct a Fire Watch during system down time
Why do we have ILSM ?
Because 60 % of Hospital fires are cause by construction !
The potential for catastrophic results from a fire in a hospital are far too great to risk !