INVESTIGATION OF THE ENERGY LOAD OF AN ELECTROMAGNETIC FIELD NEAR THE CONTACT NETWORK

The purpose of the article is to study the energy load of the EMF of the AC contact network. The absolute values of the magnetic and electric field strengths of the contact network were used in the analysis of the fields. The current distribution is given depending on the power supply system of the AC contact network: 25, 2x25, 50 kV and the considered section of the contact network. To calculate the magnetic and electric field strengths, it is proposed to use the Fazonord software product. The existing approach in Russia in the field of normalization of electric and magnetic fields up to 1 kHz does not allow protecting personnel servicing the AC contact network from the harmful effects of these production factors. To minimize possible damage to the health of personnel, it is proposed to improve the regulatory framework for electromagnetic fields up to 1 kHz, and to use the proposed maximum safe levels before the adoption of maximum permissible levels. A new approach to the assessment and rationing of electric and magnetic fields through the EMF energy load will reduce the risk of professionally caused morbidity of personnel. For the first time, the levels of the EMF energy load near the AC circuit affecting the service personnel were obtained. Extremely safe levels of EMF energy load are proposed. In order to reduce the risk of personnel exposure to EMF energy characteristics, it is possible to use alarms that warn personnel about exceeding safe levels.