Do you design for 110/220 or 120/240 volts? [RE-wrenches]
Bob-O Schultze, Electron Connection
econnect at snowcrest.net
Fri Oct 13 06:53:33 PDT 2006
<x-flowed>
Hiya Joel,
Interesting point. I design for 120/240. Most of the grid voltage
I've measured is much closer to 120/240 than the 117/234 which is
supposed to be nominal for the grid. I've seen as low as 115 from the
grid but never 110.
Cheers, Bob-O
On Oct 12, 2006, at 5:08 PM, Joel Davidson wrote:
>
> Wrenches,
>
> Do you design for 110/220 or 120/240 VAC?
>
> From http://www.seed.slb.com/qa2/FAQView.cfm?ID=427 "120 volts is
> the nominal "delivery voltage" at the connection point (e.g. the
> meter) between the utility network and your house. 110 volt is the
> standard "utilization voltage" for most household appliances in
> North America. The 10 volt difference is for voltage drops through
> the interior wiring of the house. In North America, many domestic
> electrical appliances have a "nominal" voltage of 115 volts with a
> tolerance of +/-10%."
>
> Joel Davidson
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