PRAs (Service Preliminary Risk Analysis) is an application of the basic risk analysis to evaluate the risks of industrial area services.
The PRAs methodology consists of the following tasks:
Characterization of the operational (starting activities, routine operation, stop and emergency) or maintenance (lifting of parts and equipment, interventions in equipment and systems) services performed in the plant.
Survey of information on the activities, facilities, equipment, dangerous substances / energies involved;
Separation of analysis modules;
Risk analysis of each activity, with evaluation of causes, relevant factors, frequency and severity, generating suggestions and recommendations for mitigation of risks.