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alan2023

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- TL;DR Summary
- How to figure the voltage drop at different points along a single circuit run connecting multiple loads along the way?

I'm trying to determine how to measure mathematically the voltage drop at various points along a circuit with loads at different points along the way. Let's assume all loads on 100% when the circuit is on. For a basic formula I use (for single phase): 2 * K-Value (12.9 Cu) * Amps * Length(ft)/Circular Mils of conductor. This works great for one load at one distance. How do you figure the wire size and voltage drop when it's one circuit with multiple loads along the circuit at various distances from the source? What I tried was just calculating each load's voltage drop at its distance. Then I added all the drops together to determine total drop and adjust wire size accordingly. My gut says I need to consider the other loads "upstream" from the load I'm calculating, as these are affecting the total amps at that point on the circuit. Am I overthinking this?