The screen didn't blink. It just answered. Voltage drop: 2.8% Maximum capacity: 70 Amps Upgrade to 2 AWG for 1% drop. Marco let out a low whistle. Number 4. That was three steps up from the #10 in the wall. It was thick as his pinky finger. Expensive. Heavy.
"How do you know?"
The problem was the new roaster. It was a beast—pulling 48 amps. The old cable feeding this part of the building was a sad, brittle #10 AWG, good for maybe 30 amps. If he just hooked it up, the wire would get hot, the insulation would melt, and this place would be a bonfire in a week. electrical cable thickness calculator
It listed the formula: .
But the calculator also showed him the why . He clicked "Show math." The screen didn't blink
Marco wiped grease on his jeans and pulled out his phone. No signal. He’d cached it earlier. Marco let out a low whistle