Estimation of the electromagnetic environment on objects of the railway electrified on direct current

Techniques of the approached calculation of summaries strengths from electric, magnetic and electromagnetic fields (EF, MF and EMF) in the air environment on objects of the railway electrified on a direct current are resulted. In the resulted analytical dependences the basic sources of fields essentially influencing the characteristics of environment are considered. Results of calculations by the developed techniques give satisfactory concurrence to experiment that allows to recommend to estimate them if necessary the electromagnetic environment on objects of the railway electrified on a direct current.