Human Exposure to Power Frequency Electric and Magnetic Fields inside a Very High Voltage Power Station Calin Munteanu Electrotechnics Department Technical University of Cluj-Napoca Cluj-Napoca, Romania Email: Calin.Munteanu@et.utcluj.ro Ioan T. Pop, Ciprian Diaconu DMA CNTEE Transelectrica SA Bucharest, Romania Email: Ioan.Pop@transelectrica.ro Mirela Ilia SFDEE Baia-Mare SC Electrica Transilvania Nord SA Cluj-Napoca, Romania Email: Mirela@mmelectrica.ro Abstract—The paper presents the electric and magnetic fields distribution at steady-state operation in a very recently rehabilitated 400/220kV voltage power station, taking into account the on-site equipments arrangement. The experimental measurement values are compared with the public and professional electromagnetic field exposure limits imposed by the EU 2004/40/EC Directive and by the local legislation. Colour maps of the electric and magnetic field distribution are presented in order to easily locate the high intensity field zones inside the power station. The main conclusions and the measures proposed to be taken end the paper. Keywords - electromagnetic fields; human exposure; exposure limits; high voltage; power station I. INTRODUCTION The perspective of Romania’s accession into the European Union in 2007 has focused all efforts towards the harmonization with the European legislation and regulation. Transelectrica, the Romanian TSO Company, is the first company which, further to an intensive process of rehabilitating and modernizing its infrastructure, has met the technical requirements to ensure the interconnected operation of the Romanian Power System with the power systems in Europe. By Transelectrica’s admission in UCTE and ETSO – noteworthy organizations for the TSOs in the European Union – Romania became the first EU non-member country in South- Eastern Europe, which was integrated in specialty structures of EU [1]. As Romania, by Transelectrica, is prepared to become the regional hub in the electricity market, major investments have been achieved to modernize its infrastructure: Even from its setting up, Transelectrica has launched a wide modernization / rehabilitation program of the 220 kV and 400 kV lines and transformer power stations. The telecommunication optic fiber network of over 4000 km was completed and a modern EMS/SCADA system was implemented in order to bring real- time data for the system a market operation. The metering system was commissioned through which Transelectrica