Anything about electrical calculations: sizing a wire or breaker, voltage drop over a long run, converting kW to amps, three-phase power, motor current, power factor, energy cost, or choosing a resistor for an LED.

Is the answer a substitute for an electrician?

No. It explains the calculation and points to the code section, but it cannot see your installation. Local codes vary and a licensed electrician should design and inspect premises wiring.

VoltCalc

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Describe the circuit or the calculation in your own words. You'll get the formula, the numbers worked through, and the code section to check, with a pointer to the right calculator.

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Your question goes to our server and on to a language model (OpenAI GPT-6 Luna via Vercel AI Gateway), with instructions to stick to electrical calculations, show its working and cite the NEC. It isn't stored on our side. Don't include personal details.

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