Corona caused deterioration of ADSS fiber-optic cables on high voltage lines

Author

Karady, George G. ; Besztercey, Gynla ; Tuominen, M.W.

Author_Institution

Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA

Volume

14

Issue

4

fYear

1999

fDate

10/1/1999 12:00:00 AM

Firstpage

1438

Lastpage

1447

Abstract

Deterioration of an ADSS (all dielectric self-supporting) fiber optic cable jacket material has been reported near the tips of armor rod assemblies installed on high voltage transmission lines. Field observations and laboratory tests revealed that corona can exist on the tips of the armor rod. Electric field analyses reported herein reveal that the tip surface gradients are high enough to produce corona. Field conditions have been duplicated in a high voltage test chamber and jacket damage has been observed near generated corona. The deterioration mechanism is identified and jacket life expectancy is estimated. Different mitigation techniques are suggested

Keywords

cable insulation; cable sheathing; cable testing; corona; insulation testing; optical cables; power transmission lines; HV power transmission lines; all-dielectric self-supporting fiber optic cable; armor rod assembly tips; corona; deterioration mechanism; electric field analyses; field observations; high voltage test chamber; jacket damage; jacket life expectancy; jacket material deterioration; laboratory tests; mitigation techniques; tip surface gradients; Assembly; Corona; Dielectric materials; Laboratories; Optical fiber cables; Optical fiber testing; Optical fibers; Optical materials; Transmission lines; Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.796238

Filename

796238