The static electricity is on a specific surface (-) of excess electrons load or (+) the lack of electrons load. Static electricity means the increase of electric charge on the surface of objects. This electric charge remains on an object until it either flows into the ground, or loses its charge quickly by a discharge. Uneven load distribution and accumulation in this way creates a voltage difference between the surface may interfere with their other surface. This gives rise to the danger of sparks and harmful discharge.