Computer simulation of fiber-optic cable failures due to dry-band arcing

G. G. Karady; M. Tuominen; B. Han

doi:10.1109/PESS.1999.787436

Computer simulation of fiber-optic cable failures due to dry-band arcing

G. G. Karady, M. Tuominen, B. Han

Electrical, Computer, and Energy Engineering, School of (ECEE)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

8 Scopus citations

Abstract

Utilities frequently use ADSS (all dielectric self-supporting) fiber-optic cables installed on transmission lines 10-20 feet below the high voltage conductors. A grounded armor rod assembly supports the cable at each tower. Dry-band arcing occurs on the fiber-optic cables when the cables are polluted and wet. This has been assumed to cause cable failures. The objective of this paper is to present a computer model and simulation results for the investigation of dry-band arcing. An equivalent circuit has been developed to represent the polluted fiber-optic cable in the high voltage environment. The circuit has been simulated using a commercial circuit simulator. The voltage and current distribution along the fiber-optic cable is presented. The effect of pollution levels on voltage and current is analyzed. It is also shown that the span length has an effect on the voltage and current and consequently dry-band arcing. These results could be used to determine whether dry-band arcing is a problem for a given span length. The tower has a significant effect on the capacitance to ground of the fiber-optic cable. However, it is shown that this does not affect the voltage and current distribution for pollution levels heavier than 10⁸ n/m. This model can be used by utilities to predict dry-band arcing in fiber-optic cables.

Original language	English (US)
Title of host publication	1999 IEEE Power Engineering Society Summer Meeting, PES 1999 - Conference Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	890-894
Number of pages	5
Volume	2
ISBN (Electronic)	0780355695, 9780780355699
DOIs	https://doi.org/10.1109/PESS.1999.787436
State	Published - Jan 1 1999
Event	1999 IEEE Power Engineering Society Summer Meeting, PES 1999 - Edmonton, Canada Duration: Jul 18 1999 → Jul 22 1999

Other

Other	1999 IEEE Power Engineering Society Summer Meeting, PES 1999
Country	Canada
City	Edmonton
Period	7/18/99 → 7/22/99

Keywords

ADSS
Circuit simulation
Dry-band arcing
Optical fiber cables
Power transmission lines

ASJC Scopus subject areas

Economics, Econometrics and Finance (miscellaneous)
Energy Engineering and Power Technology
Electrical and Electronic Engineering
Safety, Risk, Reliability and Quality

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Computer simulation of fiber-optic cable failures due to dry-band arcing. / Karady, G. G.; Tuominen, M.; Han, B.

1999 IEEE Power Engineering Society Summer Meeting, PES 1999 - Conference Proceedings. Vol. 2 Institute of Electrical and Electronics Engineers Inc., 1999. p. 890-894 787436.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Karady, GG, Tuominen, M & Han, B 1999, Computer simulation of fiber-optic cable failures due to dry-band arcing. in 1999 IEEE Power Engineering Society Summer Meeting, PES 1999 - Conference Proceedings. vol. 2, 787436, Institute of Electrical and Electronics Engineers Inc., pp. 890-894, 1999 IEEE Power Engineering Society Summer Meeting, PES 1999, Edmonton, Canada, 7/18/99. https://doi.org/10.1109/PESS.1999.787436

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AB - Utilities frequently use ADSS (all dielectric self-supporting) fiber-optic cables installed on transmission lines 10-20 feet below the high voltage conductors. A grounded armor rod assembly supports the cable at each tower. Dry-band arcing occurs on the fiber-optic cables when the cables are polluted and wet. This has been assumed to cause cable failures. The objective of this paper is to present a computer model and simulation results for the investigation of dry-band arcing. An equivalent circuit has been developed to represent the polluted fiber-optic cable in the high voltage environment. The circuit has been simulated using a commercial circuit simulator. The voltage and current distribution along the fiber-optic cable is presented. The effect of pollution levels on voltage and current is analyzed. It is also shown that the span length has an effect on the voltage and current and consequently dry-band arcing. These results could be used to determine whether dry-band arcing is a problem for a given span length. The tower has a significant effect on the capacitance to ground of the fiber-optic cable. However, it is shown that this does not affect the voltage and current distribution for pollution levels heavier than 108 n/m. This model can be used by utilities to predict dry-band arcing in fiber-optic cables.

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