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Fukushima Daiichi cooling efforts intensify as TEPCO restores power lines, inspects cooling systems, and douses spent fuel pools with seawater, reducing steam and radiation risks while emergency crews work to stabilize reactors and containment.
Understanding the Story
Actions by TEPCO to restore power and cool reactors and spent fuel pools, reducing radiation and explosion risks.
- TEPCO checks added equipment before re-energizing cooling systems
- 18 tons of seawater cooled a spent fuel pool to 50 °C
- Steam decline lowers risk of airborne radioactive release
- Power lines reconnected to enable safe system restarts
- Days to weeks needed to repair gear and vent volatile gas
Workers reconnected power lines to all six reactor units at Japan's radiation-leaking nuclear plant, its operator said, marking a significant step in bringing the overheated complex under control.
In making an announcement after days of anxious waiting by the public, Tokyo Electric Power Co. cautioned that much work needed to be done before the electricity can be turned on. Workers are checking all additional equipment for damage to make sure cooling systems can be safely operated, Tokyo Electric said.
In another advance, emergency crews dumped 18 tons of seawater into nearly boiling storage pool holding spent nuclear fuel, cooling it to 50 degrees Celsius, Japan's nuclear safety agency said. Steam, possibly carrying radioactive elements, had been rising for two days, and the move lessens the chances that more low-level radiation will seep into the air.
Added up, the power lines and sustained dousing bring authorities closer to bringing the Fukushima Daiichi nuclear complex, with its six reactors and spent fuel pools, under control. Officials and experts, however, have said days, even weeks would be needed to replace damaged equipment and vent any volatile gas to make sure electricity does not spark another explosion at the site.
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