first of all know the reason for this third pin.
when we use an appliances of metal body there is a chance of possible electric shock due to some charge leakage inside the appliance.
hence to prevent electric shock there proper earthing is required which is done by this third pin.
Now the reason behind making this pin bigger.
Earth pin is longer than the others which means it is first to connect as well as last to disconnect.
when we use an appliances of metal body there is a chance of possible electric shock due to some charge leakage inside the appliance.
hence to prevent electric shock there proper earthing is required which is done by this third pin.
Now the reason behind making this pin bigger.
Earth pin is longer than the others which means it is first to connect as well as last to disconnect.
- when inserting the plug, the earth connection is made before the current carrying contact of the plug become live.
- when removing the plug, the current carrying contact separate before the earth connection is separate.
Thus it is always made to improve safety.
