Appliance Ratings

[DHkorn]

Given: A listed electric fry pan has a rating of 1,500 watts. But that is based on 125 volts. Using ohms law, I find the resistance at 125 volts and then recalculate the current using 120 volts I will actually have a load of 11.52 amps.

Question: When appliances are rated in watts why dont they use the nominal voltages in 220.5?

 

[iwire]

Just a guess but imagine they would want to rate it at 125 so that if the voltage happens to running at 125 that the circuit is sized to handle the current at 125.

 

[LarryFine]

Not that 1/2 amp will make much of a difference.

 

[DHkorn]

Thanks Guys

Thanks Guys

Thanks guys. I didnt really have a burning issue here.
I had saved a CQOD answer by Charlie Trout for my 2011 NEC book and was trying to clarify it by noting what standard the appliance makers used.

 

[Dennis Alwon]

Also most pocos deliver more than 120. Around here it is around 124V