Types of Electrostatic Discharges
Occur on insulating sheet materials with high dielectric strength when both surfaces are highly charged, but to opposite polarity.
Occur between two conductors, e.g. conducting threads in groundable Type C FIBC and metal frame.
May occur when filling all types of FIBC with non-conductive powder. Space charge density increases as powder is compacted. The high field created can result in large discharges running across the cone of powder.
Occur between insulating surfaces and conductors. No evidence of igniting dusts, but may ignite sensitive gas and vapour atmospheres.
Occurs from pointed conductors or those with a small radius of curvature, e.g. fine wires or conducting threads.