Rat linked to Fukushima power outage

March 20, 2013
By

In this photo released by Tokyo Electric Power Co, the carcass of a small animal lies inside a temporary electric switchboard at the Fukushima Dai-ichi plant in Okuma town, Fukushima Prefecture, north-eastern Japan WednesdayThe apparent carcass of the rodent was visible inside the switchboard unit in a photo released by Tepco

A rat may have caused this week’s power outage at Japan’s tsunami-hit Fukushima nuclear power plant, says the Tokyo Electric Power Co (Tepco).

The company suspects the rodent may have caused a short-circuit in a switchboard, triggering the power cut.

“We have deeply worried the public, but the system has been restored,” Tepco spokesman Masayuki Ono was quoted as saying by AFP news agency.

Two years ago a massive quake-triggered tsunami caused meltdowns at the plant.

The plant was brought under control in December 2011 and Monday’s crisis was the first time since then that so many facilities had been affected by electrical failure at the same time, Tepco admits.

The power cut shut down cooling systems for four spent fuel ponds at reactors 1, 3 and 4 on Monday evening, although cooling to the reactors themselves was not affected.

The system cooling water which contained spent – but still highly radioactive – nuclear fuel rods failed and it took engineers some 30 hours to repair the damage.

‘Burn marks’

All cooling systems were operational by early Wednesday morning, Tepco said.

It said it found burn marks on a makeshift power switchboard and a 15cm (six-inch) dead animal nearby.

The company released an image of an apparent rodent carcass inside the switchboard unit.

Correspondents say the incident has highlighted the fragility of the rescue operation at Fukushima two years after the meltdowns caused a major release of radiation.

The Japanese government insists that the reactors are in a “cold shutdown” state and no longer releasing high levels of radiation.

But company officials admit they are still using makeshift power systems as they struggle to decommission – or shut down – down the facility, a process expected to take decades.

Article source: http://www.bbc.co.uk/news/world-asia-21867705#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa The feed :

Tags:

Sponsored By:

The Deeter Group

Deeter Electronics Ltd. | Deeter Electronics Inc | Deeter Group Asia | Deeter Group Germany | Deeter Group Corporate

Head & Registered Office:
Deeter Electronics Ltd.
Deeter House,
Valley Road,
Hughenden Valley,
Bucks. HP14 4LW

Tel: +44 (0) 1494 566 046
Fax: +44 (0) 1494 563 961
E-mail: [email protected]


The Deeter Group with products ranging from: , , , continuous , 4-20mA , , , , , , , a , wireless sensor and much more.

If you want a standard or a custom level switch, float switch, level sensor, or wireless sensor, contact us via email [email protected] or call us now on 01494 566 046.

Company Name: The Deeter Group

Location: Hughenden Valley, UK

Deeter Electronics USA
Deeter Electronics USA
Wireless sensor system | Radio telemetry | Level switches | Level sensors | Liquid level sensor | Float switches | Controllers & indicators | Industrial weighing equipment | Electronic circuit design & manufacture | Software design | Reed relays | Ultrasonic level flow sludge & proximity sensors | Proximity sensors & switches | Reed switches | Litz wire | Wago Terminals | Mechanical & magnetic floats | Boiler control |

Deeter Electronics UK
Wireless sensor system | Radio telemetry | Level switches | Level sensors | Liquid level sensor | Float switches | Controllers & indicators | Industrial weighing equipment | Electronic circuit design & manufacture | Software design | Reed relays | Ultrasonic level flow sludge & proximity sensors | Proximity sensors & switches | Reed switches | Litz wire | Wago Terminals | Mechanical & magnetic floats | Boiler control |

Deeter Electronics Europe
Wireless sensor system | Radio telemetry | Level switches | Level sensors | Liquid level sensor | Float switches | Controllers & indicators | Industrial weighing equipment | Electronic circuit design & manufacture | Software design | Ultrasonic level flow sludge & proximity sensors | Proximity sensors & switches | Reed switches | Litz wire | Wago Terminals | Mechanical & magnetic floats | Boiler control |

Sensor Magazine Websites
Explosion Proof Sensors UK | Explosion Proof Sensors | Water Level Measurement | Liquid Level Sensing | Liquid Level Measurement | Liquid Level Sensors UK | Liquid Level Sensors Europe | Wireless Sensors | Sensor Magazine | Industrial Sensors



Water use