kVA Tools^BETA — Conductor Spec

The Conductor Spec enables the user to size conductors for AC systems ≤ 2000 V per NEC Article 310 using ampacity tables based on load characteristics, material, temperature, and voltage drop.

Project Title

Input

Load & System	Load Current (A)
	Load Type
	System Type
	System Voltage (V)
	Power Factor
	Harmonic Content (%)
Conductor Selection	Material
	Temperature Rating
	Current-Carrying Conductors
Environmental	Ambient Temperature
Environmental	Conduit Type
Voltage Drop	Circuit Length
Voltage Drop	Voltage Drop Limit

Output — Results

Item	Value	Units
Selected Phase Conductor	—	AWG/kcmil
Selected Neutral	—	AWG/kcmil
Equipment Ground (EGC)	—	AWG/kcmil
Load Current	—	A
Required Ampacity (NEC)	—	A
Base Ampacity (Table 310.16)	—	A
Corrected Ampacity	—	A
Selected OCPD Rating	—	A
Voltage Drop	—	V
Voltage Drop	—	%
Voltage Drop Limit	—	%

Output — Correction Factors

Factor	Value	Comment
Temperature Factor	—	Table 310.15(B)(1)
Adjustment Factor	—	Table 310.15(C)(1)
Total Factor	—	Temp × Adjustment
Ampacity Check	—	Corrected ≥ Required
Voltage Drop Check	—	ΔV vs limit

—

Output — Parameter Status

Category	Status
Input Validation	—
Continuous Load	—
Harmonic Effects	—
Conductor Count	—
Implementation Notes	NEC 2026 ampacity tables. 7–9 CCC derating is 65% per 2026 Table 310.15(C)(1). 16 AWG Cu included per 2026 Section 310.5(A). For code-compliant installations, verify against current NEC edition and local amendments.