Abstract
The paper investigates an influence of day period on labour safety of workers that are engaged at maintenance and repair of catenary facilities. It also considers electric traumatism occasions that took place on catenary for the period of 2012– 2019. The author has carried out a verification of significance of difference between values of electric traumatism frequency coefficient in daylight time and in the period of evening civil twilight, along with in dark time and in the period of evening civil twilight. For the selection of principles of comparison of average values he has calculated variance of the considered values and with the use of Fisher criterion has carried out an assessment of the significance of difference of these variances. The author has also considered lighting systems that are used during execution of works in dark day period on railway catenary facilities. As a result, further directions of research on influence of day period on labour safety of employees of the JSC Russian Railways are determined.
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