For access to this article, please select a purchase option:
IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.
Your recommendation has been sent to your librarian.
The tower structure and voltage level of 35kV line are between distribution line and transmission line, which makes it difficult for live line works to choose appropriate electric field protection measures. In order to ensure the safety of live line working on 35kV line, the spatial electric field distribution of 35kV single circuit and double circuit towers and the electric field intensity of live line works at different working positions are simulated and calculated by finite element method, and the electric field intensity on the surface of live line works at different working positions is analysed The distribution characteristics and change rules of electric field on the body surface of the works, and the corresponding personnel protection requirements are put forward. The calculation results show that the electric field intensity on the surface of the workers' body at the working position is within the limit value when the workers are working on the 35kV single circuit and double circuit line poles according to four typical working conditions, which meets the standard requirements and does not need to wear the live working shielding clothing. The research results provide a technical basis for guiding the safe development of live line operation of 35kV line.
Inspec keywords: power overhead lines; finite element analysis; protective clothing; clothing industry; electric fields; poles and towers; power transmission lines
Subjects: Power line supports, insulators and connectors; Engineering materials; Finite element analysis; Power system protection; Health and safety aspects; Clothing industry; Plant engineering, maintenance and safety; Overhead power lines