English to Croatian Tech/Engineering Electronics / Elect Eng ignition hazards / electrostatic discharge

Propagating brush discharges, which always take place along a highly charged insulating coating on a steel surface, can become the ignition source with energy contents up to several J for gas/vapor/air mixtures and many dust/air mixtures.

https://en.wikipedia.org/wiki/Brush_discharge

https://www.sciencedirect.com/science/article/abs/pii/S03043...

https://www.aiche.org/ccps/resources/glossary/process-safety...