excess voltage protection

例句：

1. 1.The electrical system must be designed to prevent excess voltage from damaging the equipment.
   电气系统必须设计成防止过高电压损坏设备。
2. 2.In this case, the excess voltage is due to a fault in the power grid.
   在这种情况下，过量电压是由于电网故障造成的。
3. 3.The excess voltage protection device is essential for maintaining safe electrical operations.
   过量电压保护装置对于保持安全的电气操作至关重要。