[Amps] NEC-think.

[R.Measures]

On Jan 5, 2006, at 7:56 AM, Gudguyham at aol.com wrote:

>
> In a message dated 1/5/2006 7:24:48 AM Eastern Standard Time, 
> r at somis.org writes:
>> few days ago I ran into a Ham on 40m who is a licensed electrician
>> here in California. so I took the opportunity to ask him why 240v
>> appliances like ovens, dryers and water heaters need a ground wire. 
>> His answer:  To protect people from being shocked by the Neutral wire.
>>
> Obviously he is wrong.  The ground wire (or bond as we call it) is to 
> bond all electrical  non current carrying metal back top the 
> electrical panel so that if a current carrying wire contacts metal it 
> will trip the breaker and therefore someone will not be shocked. 

Without a ground/bond wire wouldn't connecting the Neutral wire to the 
metal enclosure hold the enclosure to a safe potential until the 
breaker trips?


Richard L. Measures, AG6K, 805.386.3734.  www.somis.org