Ensuring Electromagnetic Compatibility in Nuclear Power Plant beyond Equipment Qualification Tests

Electromagnetic compatibility (EMC) is defined as the capability of equipment or system to function satisfactorily in its electromagnetic environment without introducing intolerable disturbances anything that same [1]. EMC regulatory requirements for instrumentation and control (I&C) were not developed effect until last few years. Therefore, there a considerable number plant has been qualified EMC. The current address new modified only, do call testing existing equipment. There gap, which be overcome, order understand level within plant. Equipment qualification normally implies formal tests chambers, practical already installed. This paper short overview preparation phase project includes various EMC-related activities currently being performed Krško nuclear power (NPP). are categorized into two main groups: immunity (susceptibility) tests, used an assessment such process cabinets, transmitters similar, zone mapping measurements, record selected areas. no clear, detailed unambiguous guidance on how perform any these tests. It takes lot engineering judgement optimize them specific Some most important questions addressed this 1) selection areas measurements susceptible tested immunity, 2) choice disturbances, shall simulated during those 3) performance, i.e. harmonization with operation other systems. necessary decide mode poses “worst-case”, when measurement should performed. also addresses troubleshooting poor design installation practices, can significantly reduce problems