Re: Two phases to house - loss of neutral - Article 281 - go-pugleaf

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Re: Two phases to house - loss of neutral

#281

From: Baron
Date: Tue, 24 Nov 2009 22:26

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Phil Allison wrote:

> 
> "kreed"
> 
>> From what I can gather, pretty much every home in the US has a 120v -
>> 0 - 120v system where the 2x 120v's are 180 degrees out of phase.
>> Between the 2 phases 240v is available for stoves, air conditioners
>> etc.
>>
>> In Australia, most separate homes have a straight single phase 240v
>> supply, its not common for there to be 2,3 separate phases to the
>> average house.  Therefore the scenario Sylvia mentions is less likely
>> to occur, as not many people have this multi phase system.
>>
>> The exception here could be blocks of flats, if the main neutral to
>> the building fails, and there isn't a good earth, the imbalance could
>> be a risk.
> 
> 
> ** There is always a good "earth"  available  - courtesy of the water
> mains in the street being linked to neutral at every premises.
> 
> 
> .....  Phil

Except where plastic is in use.  Mine is all plastic and the safety
earth is linked to the armouring on the incoming mains feed cable.

-- 
Best Regards:
                     Baron.

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From: Baron <baron.nospam@linuxmaniac.nospam.net>
Newsgroups: sci.electronics.repair,aus.electronics
Subject: Re: Two phases to house - loss of neutral
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Date: Tue, 24 Nov 2009 22:26:43 +0000
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