INES-event
INES 0

DENT ON THE PIPE OF REACTOR CHANNEL 10-33 TO THE DRUM SEPARATOR

After the incident which occurred at Ignalina 2 on October 15, 1992, the pipelines metal inspection programme for reactor circuit, Unit 1 was expanded. An external examination of elbows of the pipes of reactor channels to the drum separators was performed. During the inspection a dent about 3 mm in depth was discovered on the elbow of the pipe of reactor channel 10-33.
Since the strength calculations do not allow operation with such a defect the damaged part of the pipe was replaced by a new one.
Basic level rating:0 (Table III.2-A1)
Final Rating level:0.

Location: IGNALINA-1
Event date: Wed, 04-11-1992
Nuclear event report
Legenda & explanation