If there's too much electricity in the system, you get unsafe power spikes that can overheat and damage equipment.
如果系统中的电力过多,则会出现不安全的电力尖峰,从而导致设备过热和损坏。
英语百科
Voltage spike
In electrical engineering, spikes are fast, short duration electrical transients in voltage (voltage spikes), current (current spikes), or transferred energy (energy spikes) in an electrical circuit.
Fast, short duration electrical transients (overvoltages) in the electric potential of a circuit are typically caused by