why electricity needs to be earthed
In: 6
Because devices, especially large with “naked” electrics (like electric engines that need air cooling and have metal casings), like vacuums, fridges, washing machines, dryers etc. can accumulate charge (literally like a capacitor) if they’re poorly made or maintained, if the electrical components somehow contact the surface.
And the thing is, they WILL discharge at the first opportunity they get. Unfortunately, if they’re not grounded, that opportunity might be you touching them. So it’s now a standard practice for them to come with a grounding pin to prevent exactly that.
Electronics generally don’t need them, because they draw less power, but something like PC or gaming laptop power supplies are also grounded for similar reasons.
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