Collection Occupational hygiene, Issue 20, 1984 year

Influence of emotional tension on the performance of the operator of a TPP power unit

A. V. Gerasimov

doi

Trypilska GRES of Kiev region

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In connection with the increase in the power of the units, the transition to critical and supercritical parameters of energy carriers, the deterioration in the quality of fossil fuel burned at power plants, the expansion of the service area, the problem of emotional tension in the labor of the operator of the block control panel (B1TSU) of the power unit of the TPP is especially urgent. However, the data on the nature of the influence of emotional tension on the performance of the control room operator in the literature are contradictory.

We studied the nature of changes in the operator's performance depending on the level of emotional tension. Twenty apparently healthy drivers of 300 MW power units were examined. The driver's age is 29-38 years. The survey was carried out in 2 stages with a one-year interval: for the first time - in the laboratory of psychophysiological control as a planned psychophysiological examination of operators sent for training to the Training Center of the Ministry of Energy of the Ukrainian SSR; the second time - with the help of tests at one of the stages of the Republican competition of professional skills of operators of 300 MW power units.

When assessing and predicting the effectiveness of the operator's professional activity in conditions of increased emotional stress, as well as when developing measures for clinical examination of operators of TPPs, it is necessary to take into account not only the "background" psychophysiological indicators and their dynamics, but also the "biological cost" of activities in conditions of emotional stress.

An increase in the amplitude of the T wave of the ECG in relation to the initial level by 50% or more, provided that the amplitude of the T wave does not exceed 15 mm, can be considered as a sign of high reliability of the professional activity of MCR operators in conditions of increased emotional stress and, along with psychophysiological and personal criteria, used to predict the success of their work.

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