i) in which cases should we go for neutral and where should
we go for ground?
ii) in domestic supply we are getting 230v a.c.and what is
the amount of current?
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Answer Posted / h s dhillon
1) Althogh the question is not fully clear,I try to answer
it according to my understanding. The neutral wire is used
as return path with a phase wire to complete the circuit ,
whereas, the ground wire is basically meant for protection
against faults. Although, both these wires are joined
together at the distribution T/F and hence, the ground wire
can also work as neutral wire(of course, in a poor manner)
but in that case the return current flows through the
earth wire which is generally a bare steel wire and it
gets heated and melts the PVC insulation of the
neighbouring wire, ultimately leading to a short circuit.
2)The amount of current depends upon the load (Wattage) of
the appliance connected to the supply.
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