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Explosion-proof principle of Kyushu space human body electrostatic discharger
The human body can cause electrostatic discharge (ESD) only when four specific conditions are met. First, there must be a source of static electricity generation, which may include inductive charging. Second, the static charge must accumulate on the human body, leading to a high electrostatic voltage that has the potential to create a spark. Third, the environment where the discharge occurs must contain a flammable or explosive mixture. Finally, the energy released during the electrostatic discharge must be sufficient to reach the minimum ignition energy of that explosive mixture. All four conditions are essential for an ESD-induced explosion to occur.
To prevent such incidents, an explosion-proof human body electrostatic discharge device is used. These devices effectively eliminate the static charge that builds up on the human body, ensuring that the accumulated static electricity never reaches the level required to produce a dangerous spark. The touch surface of these devices is typically made from semiconductor materials, which slow down the release of static electricity. This significantly reduces the instantaneous energy released during discharge, making it much safer.
Importantly, even if the static voltage stored in the body exceeds the threshold for a spark, the device prevents the formation of a discharge spark. By eliminating this critical element, the device removes one of the two most important factors needed for an electrostatically induced explosion. As a result, the risk of static-related explosions is virtually eliminated, providing a high level of safety in hazardous environments. This technology plays a crucial role in industries where flammable substances are present, helping to protect both people and equipment from potential dangers.