From: noel shelley (noel@shelley1722.freeserve.co.uk)
Date: Mon Mar 15 2004 - 14:16:56 PST
> Hi Frank , or anyone else competent in matters electrical ,
> Can you offer any thoughts on this one ! Though not MV it has
> relevance as a safety issue !
> A bird sits on a bare overhead power line and doesn`t not fry , because he
> does not form a current path , I have a 20 Kva 415 50cs 3Ph generator .
No
> part of the machine is in contact with earth and star point is insulated .
> If one earths the machine , then in the event of a fault there is a path
to
> earth through you , where as if left insulated there is no circuit to
earth
> and IN THEORY no risk of shock . This question has been asked of several
> people in the industry all of whom have said " interesting " never thought
> of that { because in normal supply star point [neutral] is earthed at
power
> station so the above is not an option} .
>
> My turn to ask a question , look forward to some interesting answers
>
> Noel
>
>
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