Please, do not take it for granted: I have already measured 80V from
neutral to ground in some places in my country.  Low current capable,
but still feel not willing to touch it ;-)

Francisco


Vasile Surducan wrote:

>Harold, the neutral is grounded all over the world !
>But your ideea about don't fusing neutral is wrong because this ground
>connection is done near the transformer and some time there are long
>distances through user to transformer. This means a lot of dropout voltage
>on the neutral.
>Also fusing neutral is not only for short circuits to phase but also for
>high currents in that phase/neutral circuit.
>About 20A on one phase is too much, you'll overbalance the system. The max
>admitted current for one phase system is 9...10 A.
>
>Now you'll check if your device is right projected. [big grin]
> ( east european and russian mains have 220V +20% -15% running at 45...50 Hz.
>Success, Vasile
>
>
>
>
>On Thu, 21 Feb 2002, Harold M Hallikainen wrote:
>
>>        I have a customer wanting to use our equipment in Russia. They'd be
>>using a single phase 20A circuit. I understand they use 230V, 50 Hz. Do
>>they have a grouned neutral, as we do here in the US? In the US, we rely
>>on the neutral being grounded, so we don't fuse it (since a neutral short
>>to ground does not create a fire hazard). So, what is the power
>>configuration in Russia? Anyone aware of a website that shows
>>schematically electrical standards throughout the world (single and three
>>phase, from the final distribution transformer(s) to the customer load,
>>including standard placement of grounds, fuses, etc)?
>>
>>Thanks!
>>
>>Harold
>>
>>
>>FCC Rules Online at http://hallikainen.com/FccRules
>>Lighting control for theatre and television at http://www.dovesystems.com
>>
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