Brush and propagating brush discharges on insulating sheets in contact with a grounded conductor

Abstract

This is a report of an experimental investigation of the brush and propagating brush discharges on charged insulating surfaces in contact with a grounded backing plate to gain a guide for the risk assessment of ignition by the discharges on insulating coats and liners often used in chemical processes. Based on the result, we provide unified expressions of the charge transferred by brush discharge and of a criterion for the onset of propagating brush discharge with the estimation of their discharge energies for the quantitative analysis of ignition hazards associated with the coats and liners.