Reduction of the induction field on overhead transmission lines caused by MF broadcast wave

Author

Sasamori, Takayuki ; Tobana, Teruo ; Abe, Kohshi ; Sawaya, Kunio ; Adachi, Saburo ; Arita, Kohji

Author_Institution

Akita Prefectural Univ., Japan

Volume

2

fYear

2003

fDate

11-16 May 2003

Firstpage

741

Abstract

The induction field caused by MF broadcast waves can occasionally be a safety concern during maintenance and inspection work on transmission lines. In this paper, we examine a coil grounding and we put forward a method of selecting ground points (steel towers) with the aim of reducing the induction field and thereby ensuring better safety. The frequency characteristics of the field strength is obtained by numerical calculation. In addition, the effectiveness of the grounding methods is confirmed by showing the measurement result and the calculation result of the field strength in the vicinity of the bottom conductor.

Keywords

antenna radiation patterns; broadcast antennas; earthing; electromagnetic induction; power overhead lines; radio broadcasting; safety; MF broadcast wave; coil grounding; ground points; induction field; inspection; medium-frequency wave; overhead transmission lines; safety; steel towers; Broadcasting; Coils; Frequency; Grounding; Inspection; Poles and towers; Power transmission lines; Safety; Steel; Transmission lines;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2003. EMC '03. 2003 IEEE International Symposium on

Print_ISBN

0-7803-7779-6

Type

conf

DOI

10.1109/ICSMC2.2003.1429012

Filename

1429012