A power board distributing electricity to a reactor’s temperature control valves was not examined for 11 years, and inspectors faked records, pretending to make thorough inspections when in fact they were only cursory, TEPCO said.
It also said that inspections, which are voluntary, did not cover other devices related to cooling systems including water pump motors and diesel generators.
I just keep thinking how the electricity was hooked up a little bit ago on reactor no. 2 which the IAEA update from yesterday said has a damaged core and damaged fuel rods in all likelihood. So what will that mean?
It says on the IAEA update yesterday, about Unit 2 – (which CNN announced about an hour ago that Reactor No.2 had just been hooked up with electricity for the pumps – but the IAEA info says this about Unit 2 –
Coolant within Unit 2 is covering about half of the fuel rods in the reactor, leading to fuel damage. Following an explosion on 15 March, Japanese officials expressed concerns that the reactor’s containment may not be fully intact. NISA officials reported on 18 March that white smoke continues to emerge from the building.
Efforts to pump seawater into the reactor core are continuing.
On 18 March, Japan assigned an INES rating of 5 to this unit.
My Note –
What happens when the water starts being pumped through a damaged system with melted fuel rods that are only half covered through a set of pipes and valves corroded with salt, boron and sea water generally with its constituents – all of which have been condensed and concentrated within the containment vessel? Hmmm……….. That isn’t rocket science and it isn’t nuclear physics either. I think this is one of those basic physics things and basic chemistry things. Seems like there would be a mess, not as cooling as it would otherwise be, of course. But, mostly a mess.
From the IAEA update found on the link above, it also says (DAINI)
As far as the Fukushima Daini nuclear power plant is concerned, there is no record of any incidents or radiation releases at the site. Present elevated radiation levels at the Daini site are attributed by Japan to events at the Daiichi nuclear power plant.
It also says
Measurements made by Japan in a number of locations have shown the presence of radionuclides – ie isotopes such as Iodine-131 and Caesium-137 – on the ground.
It says that the containment on reactor no.2 is suspected to be damaged and this is a nice colorful chart on their update 03-19-11
|Type of Reactor||BWR-3||BWR-4||BWR-4||BWR-4||BWR-4||BWR-5|
|Status at the time of event||In service – auto shutdown following earthquake||Shut down for outage before earthquake|
|Core and Fuel||Damaged (Damaged)||No fuel rods||No damage expected|
|Containment Integrity||No damage reported||Damage suspected||No information||Outage configuration||No damage expected|
|Off-site power||Recovery ongoing||Not available|
|Diesel generators||Not available||Two emergency diesel generators powering Units 5 and 6|
|Building||Severe damage||Slight damage||Severe damage||No damage reported|
|Water level in reactor pressure vessel||About half of fuel assembly||Outage configuration||Above fuel|
|Pressure of reactor pressure vessel||Stable||Unreliable data||Stabilised||Outage configuration||No information|
|Containment Pressure Drywell||No information||Stable||Stable||Outage configuration||No information|
|Water injection to reactor pressure vessel||Sea water||Sea water||Sea water||Outage configuration||Not necessary|
|Water injection to containment vessel||Not available||Not necessary|
|Spent fuel pool temperature||No information||Stabilising|