Project Information (optional)

Project Name

Owner / Client

Project Address

Conductor Voltage Drop

System Type

Supply Voltage (V)

Load Power (W) (or enter current)

Load Current (A)

Run Length (one-way, m)

Conductor

Conductor Size

Allowable Drop (%)

Temperature Factor

Power Factor (AC, when power is entered)

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Results

Voltage Drop (V / %)

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Load End Voltage (V)

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Wire Size Hint

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Load Current (A)

—

Circuit Resistance (Ω)

—

Allowable Drop

—

ASCII Run Preview

(calculate to preview)

Notes: Resistive model with DC resistance at 20 °C (IEC 60228 class 2 values for mm² sizes) times the temperature factor. DC and single-phase use 2 × length; three-phase uses √3 × length and line-to-line voltage. When power is entered, current is P / V (DC), P / (V × PF) (1φ) or P / (√3 × V × PF) (3φ). Reactance is ignored, so long AC runs in large conductors drop more than shown. For fibre links use the Fiber Optic Link Budget tool.

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Voltage Drop – Summary Report

Project: —

Owner: —

Address: —

Inputs

System	V	P (W)	PF	I (A)	Len (m)	Mat	Size	Allow%	T-factor
—	—	—	—	—	—	—	—	—	—

Computed

V-drop (V / %)	Load V	Circuit R (Ω)	Wire Hint
—	—	—	—

Preliminary Estimate Only: Verify local codes, allowable voltage drop, conductor temperature and AC reactance. For PoE, consider PSE/PD cable resistance per pair and standard class limits.