Baffle Former Bolts (BFBs) in PWR nuclear plant have the possibility to be cracked due to Irradiation Assisted Stress Corrosion Cracking (IASCC). The maintenance guideline for BFBs had been established from Thermal and Nuclear Power Engineering Society in 2000, and BFBs have been maintained in accor dance with this maintenance rules. Recently, the new edition of this guideline has been published in order to reflect latest IASCC data and more preci se stress evaluation of BFB into maintenance rules. The su...
英字タイトル:
Improvement activities for the maintenance of Baffle Former Bolts

Control Rod Cluster Guide Tubes (GTs) in PWR nuclear plant have the possibility to be worn due to fluid induced vibration of Control Rod Clusters. The guideline for GTs maintenance had been established after the discussion with experts, and GTs in Japanese PWR plants have been already maintained in accordance with these maintenance rules. Recently, the new edition of this guideline including new GTs inspection results and latest evaluation of wear criterion has been published in order to reflect these...
英字タイトル:
Improvement activities for the maintenance of Guide Tubes wear