The electric utility industry uses equipment “tagging” methods to identify inoperable equipment and to prevent the status of equipment from being changed for various reasons. Tagging involves identifying such equipment with small tags or other indications and maintaining records of equipment status. Operator reliability in the proper placement of tags is a function of training, good tagging procedures, adequate equipment identification techniques and tag design, among other things. This paper presents the results of an investigation of the tagging process at nuclear power plants.
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References
1.
EPRI NP-1567, Human Factors Review of Power Plant Maintainability, Electric Power Research Institute: Palo Alto, CA., February, 1981.
2.
INPO Good Practice OP-203, Procedures for the Protection of Employees Working on Electrical and Mechanical Components. January, 1982.
