i have a charger plug that i can easily plug into a extension cord backwards, without the earth connected. just curious about what it could do if i actually plug it in
In: Technology
The third pin is “optional” because it’s a safety measure. You can take a saw and cut it off, and your device will still work.
There’s three pins:
1. Hot (black wire)
2. Neutral (white wire)
3. Ground (green wire) this is the circular pin.
Electricity travels from #1, flows through the appliance/device to power it, then it flows to #2. The electricity NEEDS to travel to #2 or else a fault/short circuit will occur, and it can electrocute a person (which is dangerous). So to ensure the safety of people, there’s a safety by #3, which basically when it flows from #1 and something goes wrong and doesn’t flow to #2 as designed, it’ll automatically flow to #3 (if not, then it can flow through you, which is bad).
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