Effect on Human Body of the Magnetic Field Induced by the High Voltage Transmission Line (original) (raw)
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Experimental and Modeling of Electromagnetic Environment in the Vicinity of High Voltage Power Lines
Safety and Health at Work, 2015
Background: This work presents an experimental and modeling study of the electromagnetic environment in the vicinity of a high voltage substation located in eastern Algeria (Annaba city) specified with a very high population density. The effects of electromagnetic fields emanating from the coupled multilines high voltage power systems (MLHV) on the health of the workers and people living in proximity of substations has been analyzed. Methods: Experimental Measurements for the Multi-lines power system proposed have been conducted in the free space under the high voltage lines. Field's intensities were measured using a referenced and calibrated electromagnetic field meter PMM8053B for the levels 0 m, 1 m, 1.5 m and 1.8 m witch present the sensitive's parts as organs and major functions (head, heart, pelvis and feet) of the human body. Results: The measurement results were validated by numerical simulation using the finite element method and these results are compared with the limit values of the international standards. Conclusion: We project to set own national standards for exposure to electromagnetic fields, in order to achieve a regional database that will be at the disposal of partners concerned to ensure safety of people and mainly workers inside high voltage electrical substations.
The purpose of this study was to investigate potential health concerns linked to electromagnetic field (EMF) exposure from high-voltage power lines and develop a thorough knowledge of the underlying mechanisms causing these effects. The study looks into how Specific Absorption Rate (SAR) varies, how temperatures are distributed, and how these things affect people's health when they are close to electricity grid lines. The discretization finite difference approach was employed in this study to describe the electromagnetic waves, absorption rate, and temperature. The findings show that there is a considerable variation in SAR values, from 0.0000 to 0.0072 W/kg, and that as distance from the grid increases, SAR decreases from 1.0 to 0.0 W/kg. The study also shows that stronger electric fields cause temperatures to rise close to grid lines. These results highlight the significance of comprehending and reducing possible health concerns related to electromagnetic field exposure close to electricity infrastructure. To reduce exposure and safeguard public health, it is advised that regulatory rules, public awareness campaigns, and urban planning efforts be implemented in light of the observed variability of surface radiation and temperature swings. Effective solutions to safeguard the safety of people living and working near electrical grid lines must be implemented in concert with government agencies, utility companies, healthcare providers, and community groups. Stakeholders can create knowledgeable policies and practices to encourage safer living conditions and lessen the possible negative impacts of electromagnetic field exposure on human health by considering these findings.
Simple Approximation of the Magnetic Induction Inside High Voltage Overhead Transmission Lines
E3S Web of Conferences, 2022
With the development of electrical power transmission networks, are resulted the increase and continuous consumption of various power production sources, this is what requires the large quantities of energy construction. The increased demand in electric power employment has generated an raised of operating voltage for transmission lines (HV and VHV). The high voltage overhead transmission lines create electric and magnetic fields, and therefore have elevated serious concern questions about their possible potential effects in human body and environmental great associated with the resulting higher levels of electromagnetic fields strength around these power lines. The accurate evaluation of extremely low frequency electromagnetic fields influences produced by the high voltage overhead power lines on human health and the environment are well very known and analysed in several research works and simulation study projects. In this paper we precise examine and present a methodology for pl...
Computational Aspects of Electromagnetic Fields near HV Transmission Lines
Energy and Power Engineering, 2009
Biological effects of electromagnetic fields on the human body, animals and plants have been a subject of scientific interest and public concern for their risk on the living organisms such as blood leukemia and others. The high voltage transmission and distribution lines, which pass beside some houses, factories and schools are source of electromagnetic fields. This paper presents the field calculations around and near of high voltage transmission lines 220 kV and 500kV. To calculate the induced current, the power density, the electric field and the magnetic field of grounded and ungrounded human body cylindrical model are used. MATLAB program package is used for mathematical calculation of the distribution of the EMF in human body under high voltage power transmission lines.
Effect of Electromagnetic Fields from Power Lines on Metallic Objects and Human Bodies
International Journal of Electromagnetics and Applications, 2012
This paper investigates the interference between electromagnetic field produced by high voltage power lines and liv ing organisms and metallic objects underneath the transmission lines such as ships, at rivers crossing, and vessels passing under or near to power lines. Metallic pipelines buried in the same corridor are affected with many factors, na mely : the power line configuration, separation distance between transmission line and pipeline, separation distance between conductors, the transmission line tower height, existence of the earth wire, the sequence of the power supply, the length of corridor and the fault conditions. The equations of magnetic fields of the transmission lines and the density of currents induced in the human bodies and metallic ships surface were introduced. The induced voltage on the neighbouring pipelines was calculated. A computer program was developed to model and simu late the magnetic fields produced by power lines. The program calculates the current density induced in objects underneath or in the neighbourhood of the transmission line. The results obtained using the developed program illustrated to be consistent with previous literature results. The obtained results showed to be satisfactory and consistent with the experimental ones.
Numerical Calculation of Internal Induced Fields in Humans Due to High Voltage Transmission Lines
Acta Electrotechnica et Informatica, 2014
Interaction of extremely low frequency (ELF) electromagnetic fields (EMF) with human has been a great concern over the previous years for researchers. ELF EMFs emanating from high voltage transmission lines interact with human by inducing electric fields internally in body. Various studies have shown the ill effects of this interaction on human organism. In this paper, numerical calculations of internally induced electric field and current density in human of different gender and age are done. Maximum values of external electric and magnetic fields are estimated from the detailed survey carried out on 132 kV high voltage transmission line. Human body is a complex structure comprising of several tissues with varying values of conductivity and relative permittivity. It is very difficult to describe the interaction of external fields with every single tissue and no direct method is available for measurement of internally induced fields. Internal fields are estimated with the help of homogeneous ellipsoid model. The total induced electric field and current density due to combined effect of external electric and magnetic field is calculated. Results obtained are compared with recommended exposure levels.
THE EFFECT OF ELECTRIC FIELD ON HUMANS IN THE IMMEDIATE VICINITY OF 110 KV POWER LINES UDC 537.8
The paper presents the effect of the electric component of an electromagnetic field (ELF) of 50 Hz, originating from overground 110 kV power line, on humans in its immediate vicinity. In the paper, the electric field which penetrates the human body was calculated with the help of a human model, containing blocks which represent different human organs or body parts (brain, lungs, digestive organs, etc.) based on their electromagnetic features (conductivity, electric and magnetic permittivity). The distribution of the electric field surrounding humans will be given, as well as the values of the field which penetrates humans. Likewise, comparison has been made between calculated values and the values obtained through the usage of adequate software solutions.
Global Journal of Computer Sciences, 2017
This paper consists of an experimental and analytical characterisation of the electromagnetic environment in the medium surrounding a circuit of two 220-Kv power lines running in parallel. The analysis presented is divided into two main parts. The first part concerns an experimental study of the behaviour of the electric and magnetic fields generated by the selected double-circuit at ground level (0 m). While the second part simulates and calculates the field profiles generated by both the lines at different levels above the ground, from 0 m to the level close to the line conductors at 20 m above the ground, using the electrostatic and magnetostatic modules of the COMSOL multi-physics software. The implications of the results are discussed and compared with the International Commission on Non-Ionizing Radiation Protection reference levels for occupational and non-occupational exposures.
Computation of Electromagnetic Fields for 220 kV Power Line in Cartagena de Indias
Communications in Computer and Information Science, 2019
The growth of the cities towards the suburban areas has caused that the buildings are construct near the lines of high voltage. This has led to detailed studies of the electric and magnetic fields generated by these lines to determine the potential impact on the health of people within their area of influence. Therefore, it is necessary to calculate the profiles of the electric and magnetic fields, near the high voltage lines as a function of the distance to the center of the same and determine if the values are within the exposure limits accepted by national and international organizations. To achieve this, a program was written in Matlab that performs the calculation of the electric and magnetic field profiles under the power transmission lines based on fundamental laws. The results were validated by measurements made in accordance with the procedures established by IEEE in a 220 kV electric transmission line located in the city of Cartagena de Indias.