Progress of Cryogenics and Isotopes Separation , ISSN: 1582-2575
2013, Volume 16, Issue 1

Development of a Phenomena Identification and Ranking Table (PIRT) Fire Scenario Evaluation for the EPS (Emergency Power System) Zone of a Candu-6 Nuclear Power Plant

A. Maxim 1 , N. Branzeu 2 , I. Prisecaru 1

1 Power Plant Engineering Faculty, Politehnica University of Bucharest, Romania
2 CITON, Bucharest, Romania

*Corresponding author: Adiana Maxim, E-mail:

Published: May 2013


A potential fire in a nuclear power plant can seriously affect the overall safety. Because of that, the fire evaluation methodologies and the fire modeling applications are continuously developed in fire protection research programs. U.S. NRC elaborated a fire evaluation methodology, PIRT (Phenomena Identification and Ranking Table). The objective of PIRT fire methodology is to identify the key phenomena associated with the intended application and then to rank the current state of knowledge relative to each identified phenomenon. The aim of this paper is to conduct a PIRT investigation of fire as a potential threat to the safety of a CANDU-6 NPP (nuclear power plant), in particular for the EPS (Emergency Power System). This PIRT evaluation comprises a qualitative description of ignition mechanisms and factors affecting the growth of the fire (detection, alarm and extinguishing systems), the estimation of fire frequency, and finally, the effect of an EPS fire on the safety of a CANDU NPP.


Fire Evaluation Methodology, PIRT Fire Methodology, EPS, CANDU Nuclear Power Plant.

Tag search Fire Evaluation Methodology PIRT Fire Methodology EPS CANDU Nuclear Power Plant