Published 1999 | Version v1
Miscellaneous Open

Hydrostatic levelling of a NPP (Nuclear Power Plant) floor during the pressure test of the surrounding wall experimental measurement

Creators

  • 1. ESIC, European Space Industriel Control, 78 - Saint Quentin en Yvelines (France)

Description

The stability of the floor of a nuclear Plant (NPP) is continuously checked with existing levelling systems. In January 1999, the NPP of Flamanville (North-West of France) which is not equipped with such a system, decided to carry out an experimental measurement with a 'Hydrostatic Leveling System' (HLS), during the pressure test (for inspection air-tightness) of the surrounding wall. This paper will describe the conception, the installation of such a system and the results of the measurement. It is shown that the hydrostatic levelling system allows measurement of deformations in real-time with a very high accuracy. (author)

Availability note (English)

Available from INIS in electronic form

Files

32068838.pdf

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Additional details

Publishing Information

Imprint Pagination
[4 p.]
Report number
INIS-FR--426

Conference

Title
6. International workshop on accelerator alignment IWAA99
Dates
18-22 Oct 1999
Place
Grenoble (France)

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
32068838
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CONTAINMENT BUILDINGS; DISPLACEMENT GAGES; FLAMANVILLE-1 REACTOR; GROUND MOTION; LEVEL INDICATORS; REACTOR MAINTENANCE; SAFETY ANALYSIS
Descriptors DEC
BUILDINGS; CONTAINMENT; ENRICHED URANIUM REACTORS; MAINTENANCE; MEASURING INSTRUMENTS; MOTION; POWER REACTORS; PWR TYPE REACTORS; REACTORS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS