Fukushima nuclear cooling system restored

5 April 2013
By Sofia Mitra-Thakur
Mobile version
Share |
The cooling system at the Fukushima Daiichi nuclear plant was restored after a three hour outage

The cooling system at the Fukushima Daiichi nuclear plant was restored after a three hour outage

The operator of Japan's Fukushima Daiichi nuclear power plant said on Friday it lost the ability to cool radioactive fuel rods in one of the plant's crippled reactors for about three hours earlier in the day.

It was the second failure of the system to circulate seawater to cool spent fuel rods at the plant in the past three weeks.

Tokyo Electric Power Co (Tepco) said it was alerted by an alarm that the cooling system for the No. 3 reactor had shut down at around 2:27 p.m. (0527 GMT) after a power board failed.

Technicians fixed the problem by about 5:20 p.m., the utility said.

Tepco said workers appeared to have had inadvertently caused the power outage when they were trying to install a net to keep small animals from crawling into the reactor building.

A rat caused a power outage at Fukushima last month when it triggered a circuit breaker by bumping into exposed wires. In that case, the cooling system was shut down for almost a day.

The utility has faced a range of problems with controlling ground water and maintaining the massive cooling system built to keep the reactors stable.

The plant was the site of the worst nuclear disaster since Chernobyl in March 2011 when a magnitude 9.0 earthquake triggered a tsunami that destroyed back-up generators at Fukushima and disabled the plant's cooling system. Three of the reactors melted down.

Work to decommission the plant is projected to take decades to complete.

Latest Issue

E&T cover image 1605

"We visit Barcelona, one of the smartest cities in the world, to find out what makes it so special. What does it look like and what is the future?"

E&T jobs

  • High Voltage Engineer

    Premium job

    Essex X-Ray & Medical Equipment
    • Great Dunmow, Essex

    This High Voltage Engineer will provide design leadership for high voltage cable assemblies up to one megavolt.

    • Recruiter: Essex X-Ray & Medical Equipment

    Apply for this job

  • Sales Electronics Engineer

    Premium job

    Precision Microdrives
    • London (Greater)
    • £25,000 - £30,000 starting salary, inclusive of on-target commissions.

    Precision Microdrives (PMD) is a fast growing technology company that designs, produces and trades miniature electro-mechanical mechanisms

    • Recruiter: Precision Microdrives

    Apply for this job

  • Analogue Electronics Engineer

    Premium job

    Swedish Institute of Space Physics (IRF)
    • Uppsala (Stad) (SE)

    The Swedish Institute of Space Institute (IRF) in Uppsala search for an analogue electronics engineer.

    • Recruiter: Swedish Institute of Space Physics (IRF)

    Apply for this job

  • Principal Robotic Systems Engineer

    Premium job

    National Oceanographic Centre
    • Southampton, Hampshire
    • £45,271 to £49,207 per annum

    Responsible for technical oversight and project management of internally and externally funded innovation centre projects.

    • Recruiter: National Oceanographic Centre

    Apply for this job

  • Smart Grid Research Engineer

    Premium job

    University of Strathclyde
    • Cumbernauld, Glasgow
    • Grade: 6/7* £26,537 - £37,768*

    Work as part of a growing dynamic team on a wide range of technical projects with particular emphasis on experimental validation and testing

    • Recruiter: University of Strathclyde

    Apply for this job

  • Electrical Engineer - Water

    Premium job

    Mott MacDonald
    • Peterborough, Cambridgeshire

    Mott MacDonald's highly successful Water and Environment Unit is recruiting an electrical engineer....

    • Recruiter: Mott MacDonald

    Apply for this job

  • Electrical Design Engineer

    Premium job

    Mott MacDonald
    • Cambridge, Cambridgeshire

    Mott MacDonald's highly successful water business continues to win and deliver a fantastic amount of work....

    • Recruiter: Mott MacDonald

    Apply for this job

  • Senior Electronics Engineer

    York Instruments
    • York, North Yorkshire

    Senior electronics engineer to work as part of a team developing an MEG imaging system; working with the engineering team and external contractors.

    • Recruiter: York Instruments

    Apply for this job

  • Field Application Engineer

    Intel
    • Madrid

    Responsible for giving product presentations to the customer describing how Intel products provide the optimum solution to their application.

    • Recruiter: Intel

    Apply for this job

  • Control Engineer

    Bank of England
    • Debden
    • Competitive

    We’re looking for a qualified engineer with experience of computer programming for engineering systems and instrumentation.

    • Recruiter: Bank of England

    Apply for this job

More jobs ▶

Subscribe

Choose the way you would like to access the latest news and developments in your field.

Subscribe to E&T