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Surge protection devices are primarily designed to protect against transient surges that occur within a few microseconds. Although the duration of these spikes is very short, large single surge events such as lightning can reach a few thousand volts and cause immediate damage to equipment. These surges cannot be stopped using conventional overcurrent fuses or circuit breakers, as the operating time of those switches is not fast enough to detect these rapidly appearing spikes. However, lightning power spikes account for only about 20% of total transient surge activities. The remaining 80% of surges occur internally, when a motor starts or some other failure occurs outside of human control. Although these surges may be smaller in magnitude, with a higher frequency of occurrence and with continued exposure, they can degrade sensitive electronic equipment within the circuit. The science behind the selection of Type 1, 2, and 3 SPDs for an electrical system is explained very well here with a simple animation work. Installing an SPD on an electrical panel board is also explained here in this video. If this video is helpful then please subscribe to the channel. Thanks. #surge_protection_device #spd #lightning_protection #surge_protection #surgeprotector #surge_arrester #house_wiring #board_wiring #electrical_wiring #power_surges #spike_guard #spikedetector #lightening #lightening_arrester #voltage_spikes #transient_surge #transient_spike #house_wiring_electrical #spike_guard #power_strip #power_surge