Typhoon No. 21 massive blackouts totaled approximately 2.19 million units, mainly in Kinki 6 prefectures. About 30,000 households are not also standing prospect of recovery now. The phenomenon that roofs and fallen trees that flew with intense wind hit electric poles and electric wires and lose their functions widely occurred.
"Was the typhoon OK?" At the Municipal Himejima Elementary School in Nishiyodogawa Ward, Osaka City, the blackout was canceled on the evening of the 6th, and the telephone got through, and the teachers confirmed the safety of the child's home from the morning of the 7th. School closed for 4 consecutive days until 7th, Takahashi Masami, principal (59) said, "We could not contact Kansai Electric Power Company and could not know when to recover." I contacted the parents by e-mail from the principal's office of another elementary school. "We discarded the food in the meal freezer because I was worried about the child's school because the traffic lights near the school were out of power."
Osaka Haruaki hospital in Sennan City, Osaka Prefecture, continued a blackout until the early hours of the 6th. Approximately 60 people are hospitalized. Four of them were wearing mechanical ventilators, but respiratory batteries were overwhelmed. Mr. Omami, secretary general (67) said, "I searched for an outpatient, but I could not find any hospital because it was too hot." There was an emergency power supply, but the inside of the hospital was dim, and I placed a lantern in the hospital room. About 50 people came to visit and handed over medicines, although they were closed on 5th. The power supply car of Chugoku Electric Power came and the blackout was resolved, but "We are saving electricity because we are afraid of blackouts."
According to the Kansai Electric Power Company, about 30,000 such as the mountains of Wakayama Prefecture and Kyoto Prefecture, there are fallen trees and collapsed utility poles on the road towards the site and no workers enter. In 1995, the Great Hanshin-Awaji Earthquake disappeared in one week, but the person in charge said, "Earthquake disaster concentrated in the central part of Kobe City etc. In this time the extent of the extensive damage also prolonged It affected it. "
However, there is no influence on power plant and steel tower, the main damage is utility pole, electric wire, transformer. KEPCO requested another electric power company to dispatch 40 power supply vehicles and prepared 550 portable power generators that can cover the electricity of one house and lent it to the dialysis patients through local governments.
There are more than 800 damages to electric poles
The number of utility poles damaged by typhoons exceeded 800 in the six prefectures of Kinki. The utility pole was designed to be able to withstand the violent wind of maximum wind speed of 40 meters, but this time it was said that a flying item hit and a force exceeding the supposition was added.
The maximum wind speed on the 4th passed through Kinki was 39.7 meters in Wakayama City (maximum instantaneous wind speed of 57.4 meters), 27.3 meters in Osaka City (47.4 meters in Osaka City), at Kumatori Town in the south of Osaka Prefecture 26 · 8 meters (51.2 meters). A representative of KEPCO said, "A tin roof and a fallen tree that was blown off by a strong wind were caught by utility poles and electric wires, and more power was added than the assumed wind speed."
As a countermeasure, it is possible to enlarge the diameter of the utility pole or to ground the electric wire, but in either case there are problems such as construction cost and earthquake risk. The person in charge said, "Response to flying objects is limited by our company alone."
Complaint rush with system down
Due to the large power outage, the system of KEPCO, which automatically grasps the range of power failure from the situation of transmission and distribution, also failed.
In typhoon No. 16 in August 2004, we experienced a power outage of 560,000 households in KEPCO, and we have been reinforcing the system so that we can grasp power failure information of the same scale. However, the power outage scale this time is about four times this. The power failure information concentrates, the processing capacity of the system can not catch up.
KEPCO used this power interruption information system and provided the user with the power interruption area and restoration situation through the homepage. However, the system stopped from the afternoon on the 4th to the 6th night, flooded with telephone calls to Koen and local governments.
KEPCO set the operator up to 100 people, 500 people, but the situation continued the difficulty of connecting the phone. However, even if connected, we could not provide sufficient information by stopping the system.
Osaka prefecture's city hall government office building in Kishiwada city temporarily failed on the 4th and it was not possible to use only the phone in the guard room, but the telephone such as "there is no telephone to Kuenji" had been ringing.
Osaka prefectural officials invited executive officials to the prefectural government on September 7 and complained that "there were tremendous complaints in municipalities and there were problems with disaster response." A representative in charge of KEPCO apologized at the press conference on the same day, "I was not satisfied with the response," and apologized, "I want to reflect on wisdom and think about measures." (Igarashi Seijiro, Ishimaki Kenji)