Abstract:

Acc0rding to the analytical theory of electrostatic hidden troubles and the practical data gathered in a Railwav Freight Yard for dangerous goods,the electrostatic hidden hazards in the railway freight yard fo r dangerous goods were directly evaluated and analyzed,and two models,namely,the Floating Human Body Model and the Hu-man Body-BaITow Model,ere put forward.Some feasible preventive measures were finally presented in the paper·
The Dractical data,the resuIts of direct evaluation,mechanism analysis and model analysis all show that there exist serious electrostatic hidden hazards in the railway freight yard for dangerous goods because there lS an obvious state of electrostatic shock to the human body,and there are not only lots of easy-burning or easy-blasting goods but also manv kinds of electrostatic sources in the railway freight yard.The electrostatic discharge energy exceeds the mini-mum igniting energy of most easy-burning goods,thus resulting in the dificulty in the removal of hidden hazards of
buming and blasting caused by electrostatic discharge.Therefore,more attention should be paid to the protection of electrostatic discharge in the railway freight yard for dangerous goods.

Key words: railway freight yard for dangerous goods, electrostatic hidden trouble, measurement, evaluation, mechanism analysis, model analysis, preventive measure