Project Information (optional)

Project Name

Owner / Client

Project Address

Copper Voltage Drop

System Type

Supply Voltage (V)

Load Power (W) (or enter current)

Load Current (A)

Run Length (one-way, m)

Conductor

Wire Size (AWG)

Allowable Drop (%)

Temperature Factor

Fiber Attenuation & Power Budget

Fiber Type

Wavelength (nm)

Link Length (m)

Connectors (qty)

Splices (qty)

Margins (dB)

Tx Power (dBm) (optional)

Rx Sensitivity (dBm) (optional)

Connector Loss (dB/each)

Splice Loss (dB/each)

Fiber Atten Override (dB/km) (optional)

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Results

Voltage Drop (V / %)

—

Load End Voltage (V)

—

Wire Size Hint

—

Fiber Link Loss (dB)

—

Budget Check

—

Max Distance @ Budget

—

ASCII Run Preview

(calculate to preview)

Notes: Copper drop uses resistive model at 20 °C (temp factor adjustable). For 1-φ/3-φ AC, reactance effects are ignored for simplicity; check detailed design as needed. Fiber attenuation uses typical values: OS2 0.35 dB/km@1310, 0.22@1550; OM3 3.5@850, 1.5@1300; OM4 3.0@850, 1.5@1300. Advisory only.

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Voltage Drop & Fiber Loss – Summary Report

Project: —

Owner: —

Address: —

Inputs

System	V	P (W)	I (A)	Len (m)	Mat	AWG	Allow%	T-factor	Fiber	nm	Len (m)	Conn	Splice	Margin
—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Computed

V-drop (V/% )	Load V	Wire Hint	Fiber Loss	Budget Check	Max Dist
—	—	—	—	—	—

Preliminary Estimate Only: Verify local codes, allowable voltage drop, and vendor optical budgets. For PoE, consider PSE/PD cable resistance per pair and standard class limits.