Lessons learned from application of the LBB concept to the NPPs with VVER 440 type 213 reactors

Conference · Thu Nov 30 23:00:00 EST 1995

OSTI ID:136776

Pecinka, L; Zdarek, J ^[1]

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1. Nuclear Research Inst., Rez u Prahy (Czech Republic). Division of Integrity and Materials

Based on the high safety significance of the Leak Before Break (LBB) concept for nuclear power plants (NPPS) with Soviet Pressure Water Reactors with electrical power 440 MW denominated as VVER 440 type 230, the International Atomic Energy Agency (IAEA) has decided to pay more attention to this important issue in order to assist countries operating these first generation VVERs. As part of the safety enhancement of nuclear power plants with VVER type 213 reactors, the leak before break concept has been applied to all NPPs operated in Czech and Slovak Republics. Lessons learned through statistical and mechanistic evaluations are presented.

• OSTI ID: 136776
• Report Number(s): CONF-950740--; ISBN 0-7918-1344-4
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
22 GENERAL STUDIES OF NUCLEAR REACTORS
CRACK PROPAGATION
CRACKS
CZECH REPUBLIC
FATIGUE
FRACTURE MECHANICS
LEAKS
NUCLEAR POWER PLANTS
PIPE WHIP
PIPES
REACTOR COOLING SYSTEMS
REACTOR SAFETY
RELIABILITY
RUPTURES
SEISMIC EFFECTS
SLOVAKIA
STANDARDS
SUPPORTS
WATER HAMMER
WWER-3 REACTOR