Implementation Of National And International Requirements In A NUCLEAR Safety And Control System For Human Error Decrease

Considering the continuous evolution of Nuclear Safety Requirements standards and norms as well as technological ageing of some of the TRIGA 14MW systems since 2007 the Institute for Nuclear Research Pitesti started an ambitious program that aims at modernize different reactor systems: main cooling circuit, TRIGA SSR 14MW console and safety system, ventilation system, purification circuit, dosimetric system, loop A irradiation device. The modernization projects for process apply the national and international regulations and recommendations concerning: - physical and functional separation between safety and control components; - educing the probability of human error occurrence; - ensuring the continuous monitoring. Reactor Protection System (RPS) is designed for safe shutdown of the reactor. The RPS is responsible for the initiating signal that triggers the Scram protective action in case of anticipated operational occurrences, incident conditions or design basis accidents. RPS can scram automatically, or it can be tripped by the operators. Scram occurs when the safety parameters reach a limit set point called Safety System Setting (SSS). (authors)