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Safety systems I/C equipment reliability analyses of the Kozloduy NPP units 3 and 4

Abstract

The purpose of the analysis is to assess the safety systems I/C equipment reliability. The assessment includes: quantification of the safety systems unavailability due to component failures; definition of the minimal cut sets leading to the analysed safety systems failure; quantification of the I/C equipment importance measures of the dominant contribution components. The safety systems I/C equipment reliability has been analysed using PSAPACK (a code for probabilistic safety assessment). Fault trees for the following safety systems of the Kozloduy-3 and Kozloduy-4 reactors have been constructed: neutron flow control equipment, reactor protection system, main coolant pumps, pressurizer safety valves `Sempell`, steam dump systems, spray system, low pressure injection system, emergency feeding water system, essential service water system. THree separate reports have been issued containing the performed analyses and results. 1 ref.
Authors:
Halev, G; Christov, N [1] 
  1. Risk Engineering Ltd., Sofia (Bulgaria)
Publication Date:
Dec 31, 1995
Product Type:
Conference
Report Number:
INIS-BG-0013; CONF-9410364-
Reference Number:
SCA: 210200; PA: AIX-28:034596; EDB-97:060687; SN: 97001775172
Resource Relation:
Conference: 1. scientific and technical conference on nuclear safety conference dedicated to NPP Kozloduy, Kozloduy (Bulgaria), 25-26 Oct 1994; Other Information: PBD: 1995; Related Information: Is Part Of Proceedings of a scientific-technical conference dedicated to the 20-th anniversary of Kozloduy NPP with international participation; PB: 442 p.
Subject:
21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS; KOZLODUY-3 REACTOR; RELIABILITY; KOZLODUY-4 REACTOR; CONTROL EQUIPMENT; ENGINEERED SAFETY SYSTEMS; FAULT TREE ANALYSIS; PROBABILISTIC ESTIMATION; REACTOR CONTROL SYSTEMS; RISK ASSESSMENT; SAFETY
OSTI ID:
463251
Country of Origin:
Bulgaria
Language:
English
Other Identifying Numbers:
Other: ON: DE97621621; TRN: BG9600407034596
Availability:
INIS; OSTI as DE97621621
Submitting Site:
INIS
Size:
pp. 119-122
Announcement Date:

Citation Formats

Halev, G, and Christov, N. Safety systems I/C equipment reliability analyses of the Kozloduy NPP units 3 and 4. Bulgaria: N. p., 1995. Web.
Halev, G, & Christov, N. Safety systems I/C equipment reliability analyses of the Kozloduy NPP units 3 and 4. Bulgaria.
Halev, G, and Christov, N. 1995. "Safety systems I/C equipment reliability analyses of the Kozloduy NPP units 3 and 4." Bulgaria.
@misc{etde_463251,
title = {Safety systems I/C equipment reliability analyses of the Kozloduy NPP units 3 and 4}
author = {Halev, G, and Christov, N}
abstractNote = {The purpose of the analysis is to assess the safety systems I/C equipment reliability. The assessment includes: quantification of the safety systems unavailability due to component failures; definition of the minimal cut sets leading to the analysed safety systems failure; quantification of the I/C equipment importance measures of the dominant contribution components. The safety systems I/C equipment reliability has been analysed using PSAPACK (a code for probabilistic safety assessment). Fault trees for the following safety systems of the Kozloduy-3 and Kozloduy-4 reactors have been constructed: neutron flow control equipment, reactor protection system, main coolant pumps, pressurizer safety valves `Sempell`, steam dump systems, spray system, low pressure injection system, emergency feeding water system, essential service water system. THree separate reports have been issued containing the performed analyses and results. 1 ref.}
place = {Bulgaria}
year = {1995}
month = {Dec}
}