電氣 電線 resistance 與 voltage drop

Overview

This page provides engineering reference data and calculation tools for Electrical Wire Resistance and Voltage Drop in electrical.

Calculator

Key Formulas

The fundamental relationships for electrical wire resistance and voltage drop are described by:

$Q = U \cdot A \cdot \Delta T$

Where:

• $Q$ = heat transfer rate (W)
• $U$ = overall heat transfer coefficient (W/m²·K)
• $A$ = heat transfer area (m²)
• $\Delta T$ = temperature difference (K)

Notes

• Results are approximate and should be verified for critical applications
• Input values should be within reasonable engineering ranges

References

• Original Source