On 13 April 2010, a methane ignition at the Syferfontein underground coal mine in South Africa was successfully contained by an ExploSpot Active Explosion Barrier. Triggered by an electrical flash from a damaged 1000 V cable, the system responded within milliseconds, preventing flame propagation and protecting personnel, equipment, and the operation from a potentially catastrophic explosion.

On 20 December 2002, an Explospot Active Explosion Barrier stopped a methane explosion at the Ukuzini Shaft of New Denmark Colliery in South Africa. The system detected the developing explosion and suppressed the flame front within milliseconds, preventing propagation and protecting five miners working nearby. The event highlights how active explosion barriers serve as critical safety controls in underground coal mining.

Ignoring that an event has happened —such as a small methane ignition, a coal dust disturbance, or a minor malfunction in safety...