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ToolsCable Sizing & Voltage Drop

Cable Sizing / Voltage Drop Calculator

Size copper/aluminum power cables and check compliance against standard 3% and 5% voltage drop limits.

Purpose & Calculation Breakdown (India)

Purpose of this Tool: Prevent motor torque loss or electrical fires by maintaining voltage tolerances at end devices.

• Voltage Drop Formula:V_{drop} = \frac{K \times \rho \times L_{meters} \times I_{Amps}}{Area_{mm^2}}
• Phase coefficients:K = 2.0\ (1\text{-Phase}) \quad \& \quad K = 1.732\ (3\text{-Phase})
A
1600
m
51000

Voltage Drop Analysis

Voltage Drop (Volts)20.78
V Drop
Voltage Drop Percentage5.01%
FAIL
Terminal Voltage394.2
V AC

Generates a formal executive feasibility proposal page ready for management sign-off & signatures.

Suggested Next Step

Designing a custom control cabinet? Connect with certified Panel Builders near you.