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Nuclear Safety: AREVA Develops an Innovative Tool for Reactor Inspections

Press Release

April 16, 2014

Lower Girth Weld Inspection Tool (LGWIT), allows plant personnel to perform inspections remotely through narrow gaps in the reactor vessel internals.

LGWIT rides on top of the thermal shield 360 degrees, extending raster scan tube camera into annulus and down to the weld.

CHARLOTTE, N.C., April 16, 2014 – AREVA has developed a cutting-edge tool for nuclear reactor vessel inspections that optimizes both the safety and reliability of operations for nuclear facilities. The automated tool, known as the Lower Girth Weld Inspection Tool (LGWIT), allows plant personnel to perform inspections remotely through narrow gaps in the reactor vessel internals.

“The LGWIT is a remarkable technology which can be adapted for use in all types of pressurized water reactors, enabling utilities around the world to support the long-term safety of their operations,” said George Beam, senior vice president of AREVA Inc.’s Installed Base Business Unit.

The tool’s remote operation replaces the need for direct human intervention. This is both more efficient and contributes to significant cost savings for each inspection performed. The inspection of reactor vessel internals is essential to ensure the safe, long-term operation of nuclear power plants. This is also a key requirement in the licence renewal process.

AREVA designed this tool to meet the criteria of the Electric Power Research Institute’s Materials Reliability Program and the U.S. Nuclear Regulatory Commission’s NUREG 1766 regulation. The successfully proven LGWIT tool is currently in use by AREVA at outages for two major U.S. utilities.

AREVA Inc. Press Office

Denise Woernle
AREVA Inc. North America
(434) 832-3848

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