Question { Radiant, 16068 }

in three pin pluge there three pins one is phase and second
is earth third is nutral why nutral high diameter compare
with phase and earth

Answer

It is purely for safety porpose.
For example, one electric press in ur hand and u have to
start it, than if ur consontration is not there and by
mistek(asume those three terminals are same dia)earth
terminal is inserted in phase socket.U will get heavy sock
current.
So, the earth terminal is bigger than others then no
chanches of mistek and no need of ur consentration. u r
safe.