仪表系统的防雷措施

Lightning Surge Protection Measures of Instrument System

根据雷击对仪表系统产生危害的原因，从接闪、分流、均压、等电位连接、屏蔽和设置浪涌保护器等方面提出自动化仪表系统防雷的主要措施。从实用的方面介绍了仪表系统防雷工程的设计方法、适用规则、爆炸危险环境中现场仪表的防雷、等电位接地系统、浪涌防护器的选择和安装、电缆的屏蔽和敷设等设计内容。

According to the reasons of lightning to instrument system, the measures of lightning surge protection for automatic instrument were proposed from the aspects of lightning reception, shunting, pressure equalization, equipotential bonding, shielding and setting the SPD. Engineering design for instrument system lightning surge protection in petrochemi- cal industry were introduced such as basic method, equipotential bonding system, lightning surge protection and so on.