Study on the electrical resistance of the sleeper-fastening elements system in railway tracks

Authors

  • F. J. Barroso Instituto de Ciencias de la Construcción Eduardo Torroja (C.S.I.C), Madrid
  • P. Guarner Instituto de Ciencias de la Construcción Eduardo Torroja (C.S.I.C), Madrid
  • C. López Instituto de Ciencias de la Construcción Eduardo Torroja (C.S.I.C), Madrid

DOI:

https://doi.org/10.3989/mc.2012.06411

Keywords:

Electrical properties, temperature, railway track, sleeper, rail

Abstract


The electrical resistance of the sleeper-fastening elements system in a wet railway track is a very important parameter. This is because the rails are electric conductors in the circuit of signaling and traction systems. This electrical resistance, defined as a characteristic value of the sleeper-fastening elements-water system is a measurand obtained with reference measurement procedures as described in international standards. But it is subject to many kinds of undefinitions that result in a very high dispersion. In this work the dependence of this parameter on variables such as the water conductivity, the temperature and the relative humidity is shown, and several ways to reduce it to minimum values are also established.

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References

(1) “Fastener Electrical impedance test”. Manual for railway engineering, Vol 1, Track. Ch 30 Ties. 2.8. Test 7. AREMA (2010).

(2) “Aplicaciones ferroviarias. Vía. Métodos de ensayo de los sistemas de fijación. Parte 5: Determinación de la resistencia eléctrica”. UNE-EN 13146-5: 2003.

(3) “Traviesas monobloque de hormigón pretensado”. ADIF. VIA. Especificaciones técnicas. ET 03.360.571.8. 4ª EDICIÓN: Enero de 2009.

(4) C. López, F.J. Barroso y A. Zamora.: “Ensayos sobre modelos de traviesas de desvío de hormigón pretensado”. IETCC. Informe técnico 19517. (2009).

(5) I.A. Carrascal, J.A. Casado, J.A. Polanco y F. Gutiérrez-Solana.: “Efecto de las características físico-geométricas de las traviesas de hormigón monobloque en el comportamiento eléctrico de la superestructura de vía de ferrocarril para AVE”. Materiales Compuestos 05. AEMAC. Valencia (2005). pp. 667-674.

(6) “Calidad del agua. Determinación de la conductividad eléctrica”. EN 27888 (ISO 7888:1985).

(7) “Plastics. Determination of Water Absorption”. ISO 62: 2008. (8) International vocabulary of metrology. Basic and general concepts and associated terms. (VIM). JCGM 200: 2008.

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Published

2012-09-30

How to Cite

Barroso, F. J., Guarner, P., & López, C. (2012). Study on the electrical resistance of the sleeper-fastening elements system in railway tracks. Materiales De Construcción, 62(307), 455–460. https://doi.org/10.3989/mc.2012.06411

Issue

Section

Technical Note

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