As I implied before, maybe you don't understand this concept of 'using power'. Generation of heat is what happens when current flows through a resistance. If the conductor had a zero temperature coefficient of resistance, then that would not result in any change of current - which is simply determined by Ohm's law.If the cpc is getting hot, it is using power to do it!
I think I'll be out of this in less than half an hour - there is a limit to how much perverse 'fun'a man can take!I give it another half hour before cockburn starts singing 'Daisy'.
What we're talking about is temperature, not 'heat' - and this is where you are wrong....John, An increase in heat must be caused by an increase in power
I know what the discussion is about, but what is your point? Repeatedly making incorrect statements about basic principles obviously does not help your argument at all - nor even make it clear what your argument even is!The discussion is about allowing enough current to flow in order to automatically disconnect the supply within a given time, which is just about ohms law! V = IR ... P = (I x I)R
You are being asked to believe that during a fault of negligable impedance to earth the temperature of a cpc increases, but during this time the resistance of the cpc is increasing as the current flow is also increasing.
echoes,
You are being asked to believe that during a fault of negligable impedance to earth the temperature of a cpc increases, but during this time the resistance of the cpc is increasing as the current flow is also increasing.
Which contradicts ohms law!
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