VIENNA Feb 1 U.N. inspectors have found no
significant damage to safety equipment inside an earthquake-hit
Japanese nuclear plant, the world's largest, the International
Atomic Energy Agency (IAEA) said on Friday.
But the Kashiwazaki-Kariwa reactor, shut down by Tokyo
Electric Power Co (9501.T) after the July 16 quake, will still
remain closed longer than expected, at least until the second
quarter of 2009, analysts and market sources say.
They noted a rash of safety scandals in Japan's nuclear
sector in the five years before the quake that raised
sensitivity over security standards in an industry providing
some 30 percent of electricity to the world's third largest
consumer of energy.
In a statement, the Vienna-based IAEA said an agency
fact-finding team managed last month to examine key internal
safety components at the plant that were inaccessible for an
initial IAEA mission last August.
"The first objective of the team has been to confirm that
there appears to be no significant damage to the integrity of
the plant," said Philippe Jamet, who headed both IAEA missions.
"The mission concluded that significant data about the
earthquake has been gathered and efforts to obtain remaining
information are under way. Overall interpretation of all the
data will still be necessary to reach a full understanding of
the earthquake and assess the possibility of future ones."
The statement said Jamet's delegation had three days of
"open and constructive discussions" with Japanese nuclear
regulators, plant operators and other experts.
His team recommended international cooperation to expand on
continuing Japanese inquiries since the incident and help adjust
international nuclear safety standards where appropriate.
The Kashiwazaki-Kariwa complex, built between 1985 and 1997
atop geological fault lines that were deemed stable, was hit
last July by a quake of 6.8 magnitude, exceeding the worst
seismic impact the plant had been designed to withstand.
"The earthquake caused fractures on the surface of the site
... Geologists are investigating if (these) correspond to deeper
faults. The team observed one fault during its site visit and
was able to conclude that it was stable," the IAEA said.
"Confirmation of the stability of others is under way."
Japanese authorities had significantly improved fire safety
standards at the plant in the past few months, it added.
The plant was shut down safely during the quake. The
reactor leaked some radiation but this was below the maximum
permitted under public health and environmental rules.
(Reporting by Mark Heinrich)