Questions and answers on how to convert things from one unit or system to another

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Tue Mar 16, 2010 12:43 am

If someone could help. We have special, heat resistant (aluminum) tape for the welding industry. Based on the 2 sizes/thicknesses involved - one is rated at a maximum use (limit) of 130 amps and the other is rated at a maximum use (limit) of 250 amps. I am frequently asked what the temperature limits are for these tapes - and I don't have an answer, nor do I know what conversion method/formula to use... Anyone?? (Fahrenheit or Celsius is okay)

Fri Jul 09, 2010 1:14 pm

Not sure, but a thought that came up is
by a combination of known equations:
I am not sure but i think this will help you,

(1) DT=DQ/mc,
DT=Difference in temperature (Kelvin)
DQ=Difference in heat (Joule)
m=mass (kg)
c=specific heat (J/K*kg)
(the increase in temperature is equal to the transfered heat divided by the mass of the object and its specific heat).

(2) 1J=1W* 1s
J=joule
W=watt
s=second

By inserting (2) in (1) you get the relation between watt and celcius (Celcius=Kelvin-273).

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