Power loss problem calculation?

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Danny89

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How do I solve this what formulas do I use?

Question:
12 awg stranded in coated conductors are run 100ft; the current through the circuit is 20 amps.
What is the power loss of the conductors?


Thanks in advance


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Like it says in what HV&LV quoted, temperature as well as other conditions will have some impact.

There are cable length measuring meters out there and this is exactly how they work, you tell the device what size and type of conductor you are measuring, so it has a base for resistance per foot, but it also needs to know temperature or at least assume same temperature it is operating at, which in those cases will throw the results off some if the device and item being measured are not same temperature.
 
Dennis Alwon said:
I would use the NEC at 2.05 ohms / 1000 ft so for 100 feet you are 1/10 the distance so 2.05 / 10 = .205 ohms
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Agree totally.
I was just showing ChatGPT.
They have a disclaimer that wrong information may be given. It uses general information and is still under development. Its pretty good at coding though.

I guess i could ask for NEC table value..:unsure:
 
Hv&Lv said:
Agree totally.
I was just showing ChatGPT.
They have a disclaimer that wrong information may be given. It uses general information and is still under development. Its pretty good at coding though.

I guess i could ask for NEC table value..:unsure:
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But the intent is probably to ask what OP question is and get an answer - not necessarily knowing how it was determined though.

I remember an episode of Star Trek TNG where they encountered a place where the computer "custodian" knew everything and the people relied on it so much and forgot how to figure things out for themselves and it was ultimately destroying them. Sadly I sort of see us moving in a similar direction to some extent.
 
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