--- id: 2026-04-27T12:43:54-0400 title: 2026-04-27 12:43:54 tags: [] daily: "[[2026-04-27]]" --- # 2026-04-27 12:43:54 ## Voltage Drop for ConEst Continuing a recent conversation I've been having with [[joel-jansen]] on [[voltage-drop]], both ideally and for application in [[conest]], Joel brought Bill Swan with Estimating Solutions over to my desk. Bill said that when he is calculating voltage drop he doesn't the ubiquitous "Voltage Drop Calc 2011.xlsx" which uses a simple DC calculation, he uses [[pdi-vdc]]'s calculator, which is based on AC resistance and reactance. I showed them my own calculator, which also has AC capability The difference