The threat caused by fires under high voltage lines

• Autorzy: Chrzan K. L. , Wróblewski Z.
• Konferencja: II International Conference on Advances in Processing, Testing and Application of Dielectric Materials, September, 15-17, 2004, Wrocław
• Języki publikacji: EN

Abstrakty

EN

The effect of fires on the llashover voltage of power lines has been investigated in Brazil, Mexico, Canada, USA, South Africa, Australia and Poland. The flashover voltage of outdoor insulation is reduced by hot air, conductive flame and colloidal smoke. The paper explains shortly the fire induced flashovers of air gaps. The safety aspect for firemen and other people caused by step potentials at the arcing point was described. The published works about deterioration of aluminum stranded conductors steel reinforced (ACSR) and detection of fire induced corona are briefly reported.

Słowa kluczowe

EN

breakdown voltage; step voltage; ground resistivity

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Prace Naukowe Instytutu Podstaw Elektrotechniki i Elektrotechnologii Politechniki Wrocławskiej. Konferencje
• Rocznik: 2004
• Tom: Vol. 40, nr 15
• Strony: 208--211
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Chrzan K. L.

• Wroclaw University of Technology, Poland

autor

Wróblewski Z.

• Wroclaw University of Technology, Poland

Bibliografia

• [1] LANOIE R., MERCURE H.P., Influence of forest fire on power line insulation. 6th Int. Symposium on High Voltage Eng., New Orleans 1989, paper 30.06
• [2] VOSLOO W.L., HOLZHAUSEN J.P., BRITTEN A.C., Research into the detection of fires under high voltage lines. 7th Int. Symp. on High Voltage Eng., Dresden 1991, paper 41.12
• [3] COMIZZOLI R.B. et al., The Kuwait environment and its effects on electronic materials and components. Journal Electrochemical Society, July 1992, pp. 2058-2066
• [4] WIDLICKI Z. Wroclaw Distribution Utility, private information
• [5] LAWTON J., WEINBERG F.J., Maximum ion currents from flames and the maximum practical effects of applied electric fields. Proc. of the Royal Society, vol. 277 A, 1964, pp. 468-497
• [6] JANAT M. Influence of localized flame on dielectric strength of air. Ph. D. thesis. Wroclaw University of Technology 1991
• [7] MOUSA A.M., Protecting fireman against fire-induced flashovers. IEEE Trans. on power delivery, Jan. 1990, pp. 297-302
• [8] FIALKOV A.B., HOMANN K.H., Large molecules, ions, radicals, and small soot particles in fuel-rich hydrocarbon flames part VI: positive ions of aliphatic and aromatic hydrocarbons in low-pressure premixed flame of n-butane and oxygen. Combustion and Flame, Nov. 2001, pp. 2076-2090
• [9] WEST H.J., Mc MULAN D.W., Fire induced flashovers of EHV transmission lines. IEEE-PES Winter Power Meeting, New York 1978, paper A 73-047-2
• [10] HERNANDEZ-AVILA J.L., ROBLEDO-MARTINEZ A., Effect of polarity on DC flame breakdown. Int. Symposium on High Voltage Eng. ISH Bangalore 2001, pp. 310-313
• [11] LITTLE C.E., MAITLAND A., Electrical breakdown in low-pressure propane-oxygen flames with SF and air buffers. IEEE Trans. On Electrical Insulation, June 1990, pp. 569-573
• [12] DENO D.W., ZAFANELLA L.E., Flashovers caused by fires. Second Edition of Transmission Line Reference Book 345 kV and above. Pp. 384-388, EPRI, Palo Alto 1982
• [13] IEC 60 479-1 report: Effects of current passing through the human body, part 1: general aspects, 1984
• [14] KIM S.-D., MORCOS M.M., Mechanical deterioration of ACSR conductors due to forest fires. IEEE Trans. on Power Delivery, Jan. 2003, pp. 271-276
• [15] BRITTEN A.C., Electromagnetic noise on HV overhead lines: discrimination between nise levels generated by sugar cane fires, conductor corona and polluted insulators. Int. Symposium on High Voltage Eng. ISH Graz 1995, vol. 6, paper 6901