Fire & Gas Coverage Analysis

Fire and gas detection systems are crucial to the industry as they can play a decisive role in preventing loss of containment. Calculating coverage and verifying its effectiveness, based on a defined methodology, allows the fire system to be credited as a layer of safety.

The International Association of Automation (ISA) Technical Report, TR 84.00.07 Guide for the evaluation of the effectiveness of fire, combustible gas and toxic gas detection systems; defines the life cycle that must be followed for the evaluation of the calculation of the risk of the system. In this, the mitigation of an existing risk is determined taking into account the probability of failure of the equipment that makes up the detection, extinction and/or isolation functions. Because all devices have an inherent probability of failure, the reliability values ​​provided by international databases or the data provided by the device manufacturers are used.

Due to the importance of the effectiveness of these systems, Pryxida TECH verifies the coverage of the flame and gas detectors using software that includes 3D models of the areas to be protected, using the angles and coverage radii specified by each detector according to the manufacturer. This analysis provides the percentage of coverage of the defined area or volume, which allows the fire protection system to be given credit as a layer of protection to mitigate the risk associated with the installation.