The influence of natural environment on the operation of selected elements of fire signalling systems - limiting the number of false alarms

This paper presents the influence of selected natural environment parameters, i.e. temperature, relative humidity, electromagnetic interference and pressure on the operation of detectors used in fire signalling systems (FSS). Continuous diagnostics of environmental parameters, in particular their changes over time, may contributed to the lower numbers of false alarms in FSSs. Thus, development of an operating procedure for such elements in the continuously changing environment is an important functional issue related to operation of selected FSS detectors. Fire detector sensors detect various characteristic parameters of fire (CPF), such as smoke, temperature or electromagnetic radiation. The values of CPF depend on the changing environmental parameters - rooms, traffic routes, warehouses, etc. where detectors reacting to various test fires TF1 to TF9 are present.