Concrete boom pump strayed into "high zone" close to the mixer even burst two tires

Concrete boom pump in the air moving, accidentally close above the 220-kilovolt high-voltage wire, resulting in a concrete mixer and pump connected to two tires exploded near the ground by a shock of about 0.3 meters deep pit.

A physics teacher explained that due to a voltage of 220 kV high-voltage is very strong, when the conductor close to the wire, high-voltage arc release, the breakdown of air, the current conduction to the object. And when the object ground, they form a pathway. Air metal wheel between the hub and the tire rubber, because is energized, air is heated, the pressure increases, eventually causing a puncture.

Why lead electric pump, but it is a serious puncture mixer? In this regard, severalconstruction machinery workers at the scene of speculation, is being transferred between the two vehicles was concrete, the possibility of the presence of electricity.

Accident only individual wheel tire puncture or leak, and some of the tire has not been affected. Zeng wall ring analysis, water to flow, current is so easy to place a low flow resistance, blast resistance may occur several tire is slightly lower than the rest, so the flow of their current stronger. As for why their resistance will be relatively low, and the degree of wear, wet tire of these, whether glue metals and so on.