Electrical performance of conductive suits

Hotte, P.W.; Gela, G.; Mitchell, John; Lyons, Paul

doi:10.1109/61.636942

Cited by 12 publications

(4 citation statements)

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“…Inspired on the conductive suits employed by the workers on the power lines [40], that act as Faraday cages, the first solution considered to protect the aerial manipulator from the electrostatic discharge was to cover the robotic arm and the multirotor with an adhesive copper paper, as shown in Figure 12. The idea is to facilitate the flow of the electric charge from the forearm link to the multirotor body, so it is distributed on the external surface without reaching the cables and electronic devices.…”

Section: B Shielded Aerial Manipulatormentioning

confidence: 99%

Experimental Evaluation of Aerial Manipulation Robot in Contact With 15 kV Power Line: Shielded and Long Reach Configurations

et al. 2021

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The use of aerial manipulators for the inspection and maintenance of the power grid requires the safe interaction of the robot with high voltage power lines. In order to identify possible faults or malfunctions during the approaching or interaction phases, this paper presents experimental results in a real 15 kV power line, considering four different configurations for the manipulator: 1) aluminum tube attached to the landing gear, 2) robotic arm attached to the multi-rotor base, 3) shielded aerial manipulator, and 4) long reach configuration (insulated). The paper investigates the electromagnetic susceptibility of the autopilot and the electronic speed controllers to the electrostatic discharge (ESD) raised when the manipulator touches the line, causing the momentary failure of the rotors. A model of the electromagnetic effects associated to the interaction with the line is provided, comparing later the effectiveness of the two solutions for the aerial manipulator: shielding, and insulation.

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Section: B Shielded Aerial Manipulatormentioning

confidence: 99%

Experimental Evaluation of Aerial Manipulation Robot in Contact With 15 kV Power Line: Shielded and Long Reach Configurations

et al. 2021

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“…Adverse climatic conditions (i.e., rain, wind, snow), vegetation growth, and the impact on the bird species in the environment are some typical problems faced by companies responsible for its management and maintenance, involving a significant economic investment due to the vast extension of this infrastructure. Not only that, but the high altitude (15-50 m) and high voltage (15-500 kV) of the power lines make them a highly risky workspace for human operators, who must follow strict safety protocols [1] and use special clothes [2], which reduce the effective operation time and the feeling of comfort in the realization of manipulation tasks. The installation of devices, such as bird flight diverters or electrical spacers, such as those shown in Figure 1, is an illustrative example of an operation that requires the transportation and deployment of the worker on power lines.…”

Section: Introductionmentioning

confidence: 99%

Safe Local Aerial Manipulation for the Installation of Devices on Power Lines: AERIAL-CORE First Year Results and Designs

et al. 2021

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The power grid is an essential infrastructure in any country, comprising thousands of kilometers of power lines that require periodic inspection and maintenance, carried out nowadays by human operators in risky conditions. To increase safety and reduce time and cost with respect to conventional solutions involving manned helicopters and heavy vehicles, the AERIAL-CORE project proposes the development of aerial robots capable of performing aerial manipulation operations to assist human operators in power lines inspection and maintenance, allowing the installation of devices, such as bird flight diverters or electrical spacers, and the fast delivery and retrieval of tools. This manuscript describes the goals and functionalities to be developed for safe local aerial manipulation, presenting the preliminary designs and experimental results obtained in the first year of the project.

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“…These uncomfortable feelings will affect normal operations and can even cause accidents. Thus, a high-voltage live line worker should essentially wear conductive clothing to reduce the adverse effects caused by the AC electric field [5]. The international guidelines IEEE Standard C95.…”

Section: Introductionmentioning

confidence: 99%

“…These uncomfortable feelings will affect normal operations and can even cause accidents. Thus, a high‐voltage live line worker should essentially wear conductive clothing to reduce the adverse effects caused by the AC electric field . The international guidelines IEEE Standard C95.6‐2002 and the International Commission on Non‐Ionizing Radiation Protection (ICNIRP) give reference safety levels of 5 and 10 kV/m for general public and occupational exposure, respectively.…”

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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Electrical performance of conductive suits

Cited by 12 publications

References 0 publications

Experimental Evaluation of Aerial Manipulation Robot in Contact With 15 kV Power Line: Shielded and Long Reach Configurations

Experimental Evaluation of Aerial Manipulation Robot in Contact With 15 kV Power Line: Shielded and Long Reach Configurations

Safe Local Aerial Manipulation for the Installation of Devices on Power Lines: AERIAL-CORE First Year Results and Designs

1000‐kV UHV substation live working and safety recommendations

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