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**NEW** Improving the Quality of ECDA Indirect Inspection Data

Published: 20170329
Author(s): Daniel Fingas, Robert Gummow, Sorin Segall
Co-Author(s): R. Gummow, D. Fingas, J. Shore

The quality of the indirect inspection data is a critical factor in conducting a successful ECDA. It is therefore essential to increase the accuracy of the field data collection, to improve the data processing and to effectively present the results. This paper describes several challenges faced during this continuous improvement process.

Techniques for obtaining accurate field data for assessing the risk of AC corrosion are reviewed.

Data processing considerations are presented in the context of a case of third-party damage. The implications for similar DCVG indications on the same line are discussed, and a mechanism for these “apparent” DCVG indications is presented.

A new format for displaying the data is also presented, allowing a better visual co-ordination between the indications and the site features, as well as allowing immediate assessment of the proposed locations for direct examinations in terms of access and other challenges.

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