“拒、引”结合防雷技术在油库中的应用

“拒、引”结合防雷技术是根据雷电机理研制的一种新型实用技木,它由拒雷塔和引雷针两部分组成。当拒雷器周围空间出现雷云时,拒雷器在电场的作用下产生大量的空间电荷来改变雷云与被保护物间的电场强度,提高雷云与保护物之间的击穿电压,抑制先导放电的发生;当引雷针周围空间出现雷云时,引雷针与雷云间电场强度提高,发生先导放电,并导致主放电,引雷针可促使雷电泄放通道的导通,中和雷云电荷,对被保护物起到保护作用。拒雷器与引雷针配合默契,具有可靠的防雷作用。该项技术在油库罐区进行了实际应用,防雷效果显著。

Applications of A Combined Lightning Protection Technique in Tank Farms.

A new concept of lightning-protection engineering developed based on lightning-electricity mechanism, the combined unit consists of a lightning arresting tower and a lightning initiator. When thunder cloud approaches it, the lightning arresting tower will, actuated by ejectricity field, produce a large number of space charges powerful enough to change the field strength between the thunder cloud and the protected structure and increase the breakdown voltage, as a result, electrical discharge can be controlled. By contrast, when thunder cloud approaches the lightning initiator, the electricity field between them will increase to produce lead discharging followed by principal discharging. The initiator will keep unobstructed the channel for the discharge of thunder cloud, so that the charges in thunder cloud are neutralized and the protected structure comes out of the danger. With these two installations combined together, reliable protection can be achieved. Actual applications in the tank farm show that this technique is quite promising.