NDT of wire ropes with EM instruments - an examination of operational conditions in Canada
Abstract
Responding to requests by the Canadian raining industry and the mine regulatory authorities, the Canada Centre for Mineral and Energy Technology (CANMET) undertook a major research project on an evaluation of wire-rope testing in 1986. The objectives were to document, analyse, and clarify - in basic operational terms - the reasons for ongoing mine-shaft wire-rope failures that occur despite mandatory non-destructive testing (NDT) with electro-magnetic (EM) instruments on a routine basis. The project's investigative scope and depth was unprecedented. It could not have been successfully completed without the wholehearted cooperation of industry, research organizations, and mine-inspectorates at both national and international levels. The project's goals were attained. It was shown that, at present, the problem areas in Canada are of a human, rather than of a hardware-related nature. Consequently, the principal recommendations are concerned with a more widespread, more uniform and thoroughgoing operator training and certification process at industrial and regulatory levels. Secondary suggestions concern areas of hardware-related improvements. In this paper an up-to-date general overview is given of the major project results. An extensive reference list is also provided of papers that contain all relevant documentation in detail.
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