Body Currents in Live Line Working

Kouwenhoven, W. B.; Miller, Charles; Barnes, H. C.; Simpson, John; Rorden, H. L.; Burgess, Tom

doi:10.1109/tpas.1966.291578

Cited by 27 publications

(4 citation statements)

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“…Using the quasi-static approximation and considering the ground image effect, V s (x,y,z) can be expressed as (z- (12) where s' is the wall surface and s, is the wall surface of the house image. (x,y,z) is a field point on the wall surface, and {x ,y',z) represents a source point on the wall surface and the image wall surface.…”

Section: Electric Fields In the Housementioning

confidence: 99%

Electric field distributions inside a metallic house located under 345KV power lines

Chen

Peng

Lan

1998

Journal of the Chinese Institute of Engineers

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This paper presents the image technique and the moment method (MM) for analyzing electric field distributions inside a metallic house, located under 345 kV power transmission lines. The validity of the numerical method is checked by comparing it with the experimental results of the electric fields measured inside the metallic house. Results showed that the validity of the numerical method is extremely accurate. In the future, electric fields induced inside houses located under power transmission lines can be accurately calculated by using the MM technique in the place of time-consuming measurements.

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Section: Electric Fields In the Housementioning

confidence: 99%

Electric field distributions inside a metallic house located under 345KV power lines

Chen

Peng

Lan

1998

Journal of the Chinese Institute of Engineers

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“…The associate editor coordinating the review of this manuscript and approving it for publication was Rashid Mehmood . different live working scenarios are calculated in [6]. A gap discharge model for living working on UHV lines is established in [7], the electric field distribution on human body surface under different voltage levels, positions, and human postures are obtained by the finite element method.…”

Section: Introductionmentioning

confidence: 99%

Study on the Construction and Application of Digital Twins on High Voltage Transmission Line Live Working Scenes

Guo

et al. 2021

IEEE Access

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Affected by electric field generated in power transmission line, live worker on the high-voltage transmission line is in dangerous working environment. In this paper, posture perception, numerical simulation, and risk assessment are adopted to realize the deep fusion of physical trajectory and spatial virtual electric field distribution of live worker, and digital twin bodies of live worker in different live working scenarios are constructed. Firstly, posture trajectories and 3D model of living worker in typical operation conditions are captured and reconstructed by full-body inertial action capture technology and this technology use motion capture unit which include 3-aixs accelerometer/gyroscope/magnetic field sensors. The length of complex gap and body workspace under various live work scenes are also calculated. By static electrical field finite element (FE) numerical modeling, surface electrical field distributions of live worker under different posture trajectories are then calculated. Finally, interactive mechanism between ''body-information-physical environment-virtual environment'' is introduced, and potential risk of live worker is on-line assessed by live work guide rules. This work develops a new assessment and protection method for virtual training and field operations of high-voltage live worker. Which is of great significance for enhancing operation level and ensuring living workers' safety.

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“…Thus the field strength on various parts of the worker's body will be different. The first study on electric field measurement on a live line worker's body was conducted on 138 and 345 kV lines, and the electric field recognition level of the human body was determined as 240 kV/m (6 kV/in) . In this case, the worker feels like a gentle breeze blowing on his skin, which is due to the action of the electric field on the hairs of the skin.…”

Section: Introductionmentioning

confidence: 99%

1000‐kV UHV substation live working and safety recommendations

Fang

Rehman

Xiao³

et al. 2018

IEEJ Transactions Elec Engng

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This work focuses on the measurement and analysis of the electric field for live working in a 1000‐kV substation. Also, it compares the electric field and the shielding efficiency requirement of a 1000‐kV substation with 1000‐kV transmission lines. The electric field at the ground potential of the substation was measured using a microelectromechanical system (MEMS)‐based device. However, for safety reasons and to acquire rigorous data, finite element method (FEM) was applied to calculate the electric field at equipotential. Two cases of entry into equipotential were considered: one in which the worker moves along tension insulators to live conductors, and another where the worker is lifted to an energized bus bar on an insulated elevating platform. Our results indicate that the electric field values on the worker in the 1000‐kV substation and transmission lines are about the same at ground potential, while at equipotential, the substation's maximum electric field is 25.2% higher outside the conductive clothing and 47.4% higher outside the metallic mask as compared to the 1000‐kV transmission lines. Based on these results, for live working in a 1000‐kV substation, we recommend the use of conductive clothing with 60‐dB shielding efficiency, which is similar to that used in live working on a 1000‐kV transmission line, but the metallic mask should have 25‐dB shielding efficiency, which is 5 dB higher than that used for the transmission line. © 2018 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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Body Currents in Live Line Working

Cited by 27 publications

References 0 publications

Electric field distributions inside a metallic house located under 345KV power lines

Electric field distributions inside a metallic house located under 345KV power lines

Study on the Construction and Application of Digital Twins on High Voltage Transmission Line Live Working Scenes

1000‐kV UHV substation live working and safety recommendations

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