Suksri, A., Tonmitra, K. and Boontun, K. (2013) “Electrical Leakage Current on 22 k V Porcelain Insulators Tested under Saline Solution”, Engineering and Applied Science Research, 30(4), pp. 379–389. available at: https://ph01.tci-thaijo.org/index.php/easr/article/view/6597 (accessed: 22 September 2026).