Evaluation of Fibre Lifetime in Optical Ground Wire Transmission Lines

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Abstract

In the research, measurements of polarisation mode dispersion of two OPGWs (optical ground wire transmission lines), in total four fibres, have been carried out, and the expected lifetime of the infrastructure has been assessed on the basis of these measurements. The cables under consideration were installed in 1995 and 2011, respectively. Measurements have shown that polarisation mode dispersion values for cable installed in 1995 are four times higher than that for cable installed in 2011, which could mainly be explained by technological differences in fibre production and lower fibre polarisation mode dispersion requirements in 1995 due to lack of high-speed (over 10 Gbit/s) optical transmission systems. The calculation methodology of non-refusal work and refusal probabilities, using the measured polarisation mode dispersion parameters, is proposed in the paper. Based on reliability calculations, the expected lifetime is then predicted, showing that all measured fibres most likely will be operational within minimum theoretical service life of 25 years accepted by the industry.

1. Kumar, A., & Ghatak, A. (2011). Polarisation of Light with Applications in Optical Fibres. Bellingham: SPIE.

2. ITU-T Rec. G.650.2. (2005). Definitions and Test Methods for Statistical and Non-Linear Related Attributes of Single-Mode Fibre and Cable, pp. 2-18.

3. ITU-T Rec.G.652. (2016). Characteristics of a Single-Mode Optical Fibre and Cable.

4. Yasin, M., Harun, S.W., & Arof, H. (2012). Optical Fibre Communications and Devices. Rijeka: InTech.

5. Porins, J., Bobrovs, V., Markevics, K., & Supe, A. (2013). Comparison of reliability of ADSS cables mounted on different voltage electric power lines. In 5th International Congress of Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), IEEE 2013, 10-13 September 2013 (pp. 158-163). DOI: 10.1109/ICUMT.2013.6798421.

6. Ostrejkovskij, V.A. (2003). Theory of Reliability. Moscow: High School. [in Russian].

7. Oboskalov, V.P., Gerhards, J.H., & Mahnitko, A.E. (2015). Structural Reliability of Electrical Power Systems. Riga: RTU Press.

8. ITU-T Rec.G.652. (1993). Characteristics of a Single-Mode Optical Fibre Cable, pp. 1-6.

9. ITU-T. (2009). Optical Fibres, Cables and Systems. Geneva, Switzerland: ITU.

Latvian Journal of Physics and Technical Sciences

The Journal of Institute of Physical Energetics

Journal Information


CiteScore 2018: 0.32

SCImago Journal Rank (SJR) 2018: 0.147
Source Normalized Impact per Paper (SNIP) 2018: 0.325

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