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Nuclear energy rides the 'shake table' for earthquake safety

US nuclear power plants are designed and built to stringent seismic standards based on the surrounding region. To test against earthquakes, nuclear companies use special 'shake tables' to simulate the powerful earthquake ground movement.

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Jacky Naegelen/Reuters/File
View of the Areva Tower, the headquarters of the nuclear company, at La Defense business district in Courbevoie, France. Special 'shake tables' help US nuclear power facilities remain a safe, reliable, and bountiful clean energy source of electricity to power America鈥檚 industry, hospitals, and homes.

Bucking the challenge at up to 20g鈥檚, the nuclear components from U.S. utilities strive to survive the gyrations of AREVA鈥檚 7-ton seismic shake table.

The centrepiece of AREVA鈥檚 Seismic/Vibration Lab, the 10鈥 x 10鈥 electro-hydraulic multi-axial 7-ton shake table is capable of testing nuclear components weighing up to 10 tons at a maximum of 100 Hz with peak acceleration from 5- to 20-g, dependent on the item鈥檚 mass.

As seen in this video showing two test blocks (total mass ~10,000 lbs.) riding the shake table, AREVA鈥檚 component testing can include the powerful earthquake ground movement of greatest concern to utilities, regulators, and communities. 听听

The Seismic/Vibration Lab is just one section of AREVA鈥檚聽聽located in the AREVA Solutions Complex, one of the largest collection of nuclear testing and service offerings for commercial grade dedication (CGD) and innovative testing capabilities in the United States.

础蝉听聽by the Nuclear Energy Institute (NEI),

鈥淎ll nuclear power plants in the United States are designed and built to聽聽appropriate for the region in which they are聽located. Earthquake safety standards are more stringent for nuclear energy facilities than for any other type of infrastructure.

The nuclear energy industry continues to take steps to enhance the safety of America鈥檚 reactors. As part of the response to the U.S. Nuclear Regulatory Commission鈥檚 post-Fukushima requirements, companies that operate nuclear energy facilities are re-evaluating the earthquake potential at their sites using the latest data and methodologies.鈥

Surviving the bull ride atop AREVA鈥檚 shake table is one way to test safety-related components, and help U.S. nuclear power facilities remain a safe, reliable, and bountiful clean energy source of electricity to power America鈥檚 industry, hospitals, and homes.

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