Is 126 Too High? Standard? - Electrical - Page 2 - DIY Chatroom Home Improvement Forum

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07-03-2010, 01:58 PM   #16
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 Originally Posted by sparks1up While this is true, resistance heaters also draw more with a higher voltage and although it might not add up to much on your bill it's still more. .
I was speaking to the functionality and life of the heaters and other items. Yes, a resistance heater will use more power if you throw more voltage at it but generally they are able to withstand the higher voltage without damaging them (as long as we aren't speaking about way out of spec's voltage.

One thing about the 130 volt rated lamps: if it says 100 watt/ 130 volts, when you operate it on 120 volts, you will not have the same light output as the rating on the package which is determined at 130 volts. the wattage and resulting output is based on the rated voltage.

07-03-2010, 04:31 PM   #17
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Quote:
 Originally Posted by nap One thing about the 130 volt rated lamps: if it says 100 watt/ 130 volts, when you operate it on 120 volts, you will not have the same light output as the rating on the package which is determined at 130 volts. the wattage and resulting output is based on the rated voltage.
From http://en.wikipedia.org/wiki/Incandescent_light_bulb
▪ Light output is approximately proportional to V^3.4
▪ Power consumption is approximately proportional to V^1.6
▪ Lifetime is approximately proportional to V^−16
▪ Color temperature is approximately proportional to V^0.42

For 120v/130v conversion you can use 0.92 for V, so light will be at 75%, power at 88%, life @ 380%, color temp @ 97%.

Last edited by Yoyizit; 07-03-2010 at 04:36 PM.

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