Why is my electrical outlet sparking?
Thereof, is it normal for outlets to spark?
Sometimes, a visible spark at the outlet is normal So as soon as you plug an appliance into the outlet, live electrical current “jumps the gap”, trying to establish connection with the appliance. And for this very brief moment, a tiny blue spark occurs. But normally, this spark occurs only for a split-second.
Regarding this, why do outlets spark when you unplug something?
Normal Spark Electricity runs along circuits and back to the main grid without interruption. When a device is plugged into the outlet, some of the electricity transfers from the outlet to the device. When you unplug it, you're breaking the electric contact, causing the spark.
This is normal for nearly any electrical device to need this initial surge at power on time. When you plug in your extension cord, this initial surge will begin at the slightest contact between the plug and socket. This surge will be through a very small contact point and can cause a harmless spark and crackle sound.