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Identify and Assess Environmental Risks Posed by High – Voltage Power Transmission Lines in Urban areas by
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A Jozi   , N Jafardzadehaghighifard , N Afzali behbahani * 1 |
| 1- , afzali.negar@yahoo.com |
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Abstract: (10854 Views) |
| Introduction: due to increasing
development of electricity transmission in the country and non – compliance with privacy standard residential lines in some cities, many problems for the residents of these areas have been established. The aim of this study was to identify and assess risks in the area of power transmission lines by using William Fine method in hasyrabad and provide a solution is to reduce the effects.
Materials & Method: in order to determine the risks, processes and equipment required for power transmission through field visits and interviews with experts, are identified. Since the magnetic field emitted from the power lines as if it is illegal, can be considered as a risk, this parameter is measured in the study area based on the NIEHS standard with 3D EMF TESTER by four of the 91, 61, 30 ,15 meters from the 230 kv tower, And eventually performed with the standard values can be compared. The identified risks by the parameters of William Fine method were scored and prioritization methodology was based on the placement table. Finally, to reduce the risk level, corrective control measures, were presented.
Findings: measuring the magnetic field intensity in the study area, showed that field intensity at any desired distance from the most is above the permissible limit and can be considered as a risk. Finally, 41 risk in four categories: health, environmental, safety – technical and natural event by using William Fine method for 13 elements were identified. The highest risk to the wire and electrical transmission line with priority number 900 and minimum risk to the tower, wire guards, wire ground and span were obtained with a risk priority number 25.
Discussion & Conclusion: according to the results, the highest levels of safety at risk – health RPN are 900 and 400 respectively that in most cases the cause of risk is non – compliance with privacy standards of electricity transmission lines in residential areas. so, the proposed control strategy to reduce the effects, compliance with the standards of offshore electricity transmission and prevent people from advancing and construction of urban space is provided for the risk. |
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| Keywords: Risk, Power Line, Risk Assessment, Urban Area, William Fine Method. |
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Full-Text [PDF 479 kb]
(10079 Downloads)
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Type of Study: Research |
Subject:
Environmental health
Received: 2013/05/29 | Accepted: 2014/03/8 | Published: 2014/06/15
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