Abstract
It is well known that about three-quarters of a lightning discharge to the ground consists of multi-stroke flashes among which 3- or 4-stroke flashes are the most frequent. A new type of impulse-generator was developed which can produce 3-successive impulse voltages to simulate multi-stroke lightning flashes. Experiments were conducted to investigate the effects of multi-stroke flash on the living body and the results were compared with those for the well-known effects of a single-stroke discharge. The results demonstrated that in the case of the multi-stroke discharge, the animal died when of the energy of one of the individual impulses reached the lethal threshold value established for a single-stroke discharge. It was found that the effect of the individual impulses did not last longer than the stroke interval and did not exert an additive effect on the living body. In natural lightning discharges, the multi-stroke flash should be regarded as more dangerous than the single-stroke flash, since it is liable to an energy that exceeds the lethal threshold value and to be associated with a higher probability of a continuing current (known to be the most fatal of discharge components).
Similar content being viewed by others
References
ISHIKAWA, T. (1982): Prevention against lightning accidents in Japan. Nihon Univ. J. Med. 24: 1–14.
ISHIKAWA, T., MIYAZAWA, T., OHASHI, M., HOSOMI, Y., FUJISHIRO, Y., MUTO, T., KITAGAWA, N., TSURUMI, S. and KINOSHITA, K. (1978): Threshold value of lethal energy of artificial lightning discharge applied on rabbits. J. Toden Hosp. 8: 89–100 (in Japanese).
ISHIKAWA, T., MIYAZAWA, T., OHASHI, M., MUTO, T., KITAGAWA, N., TAKAGI, K., KINOSHITA, K. and TSURUMI, S. (1981): Experimental studies on the effect of artificial respiration after lightning discharge. Res. Exp. Med. (Berl.) 179: 59–68.
KITAGAWA, N. (1972): The nature of lightning incidence on the human bodies: Basis for their protection. Proceedings of the Institute of Electrostatics Japan, 17: 239–241.
KITAGAWA, N., BROOK, M. and WORKMAN, E. J. (1962): Continuing currents in cloud-to-ground lightning discharge. J. Geophysical Research, 67: 637–647.
KITAGAWA, N., KINOSHITA, K. and ISHIKAWA, T. (1972): Discharge experiments using dummies and rabbits simulating lightning strokes on human bodies. Int. J. Biometeor. 17: 239–241.
NAGAI, N., ISHIKAWA, T., OHASHI, M. and KITAGAWA, N. (1982): Study of lethal effects of multiple-stroke flash. Research letters on Atmospheric Electricity, 2: 87–90.
OHASHI, M., HOSOMI, Y., FUJISHIRO, Y. and MUTO, T. (1978): Threshold value of lethal energy of electric discharge to rats. J. Toden Hosp. 8: 71–79 (in Japanese).
OHASHI, M., HOSOMI, Y. and FUJISHIRO, Y. (1981a): Lethal threshold energy of artificial lightning applied on rats: comparison of lethal energy of rats and rabbits. J. Toden Hosp. 10–11: 41–50 (in Japanese).
OHASHI, M., HOSOMI, Y., FUJISHIRO, Y., ISHIKAWA, T., MIYAZAWA, T., KITAGAWA, N., TSURUMI, S., KINOSHITA, K., NAGAI, Y. and TAKAGI, K. (1981b): Experimental studies of resuscitation for rabbit after artificial lightning discharge. J. Toden Hosp. 10–11: 51–61.
OHASHI, M., KIMURA, T. and KIKUCHI, K. (1981c): Autopsies of rabbit subjected by artificial lightning stroke. J. Toden Hosp. 10–11: 63–73 (in Japanese).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ishikawa, T., Ohashi, M., Kitagawa, N. et al. Experimental study on the lethal threshold value of multiple successive voltage impulses to rabbits simulating multi-stroke lightning flash. Int J Biometeorol 29, 157–168 (1985). https://doi.org/10.1007/BF02189037
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02189037