Control rod cracks found Hamaoka 3

17 August 2006

Checks on thirteen used hafnium control rods in unit 3 of Japan’s Hamaoka nuclear station have revealed cracks in at the one rod inspected so far.

Cracks have been discovered in the sheath and tie rod sections of the rod at the 1.1 GWe BWR and operators Chubu Electric Power Co have said it appears that these cracks are the same as others found in hafnium control rods.

All thirteen hafnium control rods removed from the nuclear reactor are to be replaced with boron carbide control rods.

In January the Nuclear and Industrial Safety Agency issued an instruction to all companies running boiling water reactors requiring inspection of all hafnium control rods after cracks were found in hafnium control rods in the Tokyo Electric Power Co’s Fukushima station.


Related Articles
Barsebäck 2 closure compensation agreed
Swedish nuclear plant upgrade
Sweden’s Oskarshamn 3 to boost capacity
Swedish opposition parties drop nuclear phase out plans
Details released on March SCRAM at HB Robinson 2



Privacy Policy
We have updated our privacy policy. In the latest update it explains what cookies are and how we use them on our site. To learn more about cookies and their benefits, please view our privacy policy. Please be aware that parts of this site will not function correctly if you disable cookies. By continuing to use this site, you consent to our use of cookies in accordance with our privacy policy unless you have disabled them.