我们经常会看到油罐车底部都有一条铁链拖在地上行驶,殊不知,这条“铁尾巴”竟是油罐车的保护神。据了解,油罐车底部拖一条铁链是用来导静电用的。因为汽油、柴油等石油产品的电阻都比较大,在运输过程中与罐体频繁摩擦,很容易产生、积聚静电。当静电积聚到一定程度后就容易放电,产生静电火花,引燃石油产品,引发燃烧或爆炸事故。油罐车以四个绝缘的橡胶轮胎着地,不能及时将静电导入地下,而油罐车后带的拖地铁链能将静电及时导入地下,防止静电积聚和放电,起到保 We often see the bottom of the tanker has a chain dragged on the ground, as everyone knows, this “iron tail ” was actually the god of tankers. It is understood that drag the bottom of a tanker chain is used to guide static electricity. Because gasoline, diesel and other petroleum products resistance are relatively large, frequent friction with the tank during transport, it is easy to produce, accumulate static electricity. When the static electricity accumulates to a certain extent, it is easy to discharge, generate electrostatic sparks, ignite petroleum products, triggering a burning or explosion accident. Tanker to four insulated rubber tires to the ground, not in time to the static electricity into the ground, while tanker truck with the chain after the drag chain can be imported into the ground in time to prevent static electricity accumulation and discharge, play Paul