使用三同轴电缆时，为了减少电缆泄漏并尽量降低电路的上升时间，可以将内层屏蔽驱动到保护电位。
With triax cable, the inner shield can be driven at guard potential in order to reduce cable leakage and minimize circuit rise times.
综合应用屏蔽、等电位连接和电涌保护器等基本防护措施，实现了自动化系统的雷电综合防护。
According to the application comprehensive of the shield, equipotential bonding and surge protective device, the combination protection of the automatic system is realized.
试验发现真空度下降到一定值时屏蔽罩上形成的交流电位幅值会发生变化，同时屏蔽罩上还会有直流电位生成。
In the process of experiment, it is found that alternating potential (AP) on shielding has changed when the vacuum degree descends to a certain degree.
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