Design and Performance Evaluation of FRP Cross Arm for Transmission Line Towers


M. Selvaraj
S. M. Kulkarni
R. Ramesh Babu


The technology of compaction of power transmission lines is being increasingly adopted by power industry to effectively make use of the Right of Way (ROW). For technical, aesthetic and economical reasons, our future transmission lines will have to be built with new design concepts using new materials. An attempt was made to build the transmission line tower cross arm with pultruded sections of Fibre Glass Reinforced Plastic (FRP) as a substitute for steel. The metallic towers have been deteriorating and corroding as a result of being in hostile environment i.e., wind, rain and salty environment etc. This paper describes the mechanical behaviour of FRP tower cross arm assembly simulated using Finite Element Analysis (FEA) software and compared with experimental results.


How to Cite
Selvaraj, M., Kulkarni, S. M., & Ramesh Babu, R. (2009). Design and Performance Evaluation of FRP Cross Arm for Transmission Line Towers. Power Research - A Journal of CPRI, 5(2), 25–31. Retrieved from


  1. Ghodrat Ollah Heidari and Maziar Heidari. "Effect of land price on transmission line design." CIGRE Session-1992.
  2. Nolasco and Da Dilva J F. "Use of Right Of Way of overhead lines in urban areas - an experience in Brazil." CIGRE Session - 1992.
  3. Rural Electrification Corporation Limited (REC), New Delhi, "Specification for FRP cross arms for 11 kV and 33 kV lines" - 2002.
  4. Susendran R, Krishnamurthy P, Afsar Ahmed, Raghunatha T and Revanna D. "Strcutrual assesment of compsoite material for transmission towers" 59th R&D session of CBI&P, New Delhi, 1994.
  5. Dwivedi P K, Saxena, Pankaj Kumar, Jain N K and Saha K V W. "Safety procedures for working on de-energized EHV lines sharing common Right Of Way." IEEE, 7(3). 1992, pp. 1371-1378.
  6. Mehrtash A, Fsharnia, Golkar, Kamalinia and Monsef. "Assessment of overhead transmission line Right of Way standard de regulating in Iran." IEEE, UPEC, 2007, pp. 801-805.
  7. Jannat Aliour H, Aminnejad S and Jazaeri M. "Decreasing the Right of Way of transmission lines by using towers with polymer insulation arms". POWERENG Portugal, 2007, pp. 571-576.
  8. Brian C W and Timothy L M. "Modifying the existing 132 kV transmission tower to 230 kV." IEEE, 1-5, 2006.
  9. Delta composites. "Design manual for fiberglass grating and structural products.", Delta composites, L.L.C., USA, 2004.
  10. Hollaway L C. "Advances in adhesive joining of dissimilar materials, Special reference to steels and FRP composites." Proc. of the International Symposium on Bond Behaviour of FRP in Structures (BBFS 2005), 2005, pp. 11-21.
  11. Albermani F G A and Kitipornchai S. "Numerical simulation of structural behavior of transmission towers" Elsevier, Thin-walled structures, 41, 2003, pp. 167-177.
  12. Saeed Moaveni. "Numerical experiments for a mechanics of material course," Int. J. Engng Ed., 14(2), 1998, pp. 122-129.
  13. IS: 802 (Part-I) : 1995 and (Part-III) : 1978 RA 2003 "Code of practice for use of structural steel in overhead transmission line towers"
  14. Da Silva J G S, Vellasco, Andrade and Oliveira. "Structural assessment of current steel design models for transmission and telecommunication towers" Elsevier, 61, 2005, pp. 1108-1134.

Most read articles by the same author(s)