Voltage Drop Visualizer

Circuit visualization

Voltage at load

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Voltage drop

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Drop %

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Line loss

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Within recommended limits.

CEC Rule 8-102 / NEC 210.19(A) Informational Note 4

Inputs

Voltage system

Phase

Conductor material

Conductor size (AWG / kcmil)

One-way length 100 ft

Load current 20.0 A

Units

Recommended drop limit

⚡ Teaching visualization. Uses simplified DC-resistance approximation (Vdrop = 2 × K × I × L / CMA for single-phase, or √3 × K × I × L / CMA for three-phase). Real voltage drop includes reactance for large conductors + AC circuits, temperature effects, and power factor. For engineering-grade calculations use the tables in CEC Section 8 / NEC Chapter 9 Table 9. Always verify with your code book and a licensed electrician for real installations.