Hell, I’ve even seen people rip them off to fit 3 prong plugs into 2 prong extension cords. I’m sure it’s not safe, but I dont know why and why they would be necessary sometimes and sometimes not.
In: Engineering
It’s a grounding wire to protect users and electronics from power surges. You’re right it’s 100% not a necessity, but the more power something uses the more I would recommend using it. It’s essentially a safety feature. I don’t know if you know anything about jumping a car, but one of the cables you attach to metal under the hood instead of the negative of the car you’re jumping, it’s the same concept as that. You’re grounding it so if too much power goes through it will have somewhere to go.
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