1. What Is Cable Diameter Calculation?

Cable diameter calculation determines the diameter of a single cable from its cross-sectional area. This is important for electrical engineering, cable selection, and installation planning.

2. How Does The Calculator Work?

The calculator uses the cable diameter formula:

Where:

• \( D \) — Cable diameter (mm)
• \( Area \) — Cross-sectional area (mm²)
• \( \pi \) — Mathematical constant Pi (approximately 3.14159)

Explanation: The formula calculates the diameter of a circular cable by working backward from its cross-sectional area using the geometric relationship between diameter and area of a circle.

3. Importance Of Cable Diameter Calculation

Details: Accurate cable diameter calculation is essential for proper cable selection, conduit sizing, installation planning, and ensuring electrical safety standards are met.

4. Using The Calculator

Tips: Enter the cross-sectional area in square millimeters (mm²). The value must be greater than zero. The calculator will provide the corresponding cable diameter in millimeters.

5. Frequently Asked Questions (FAQ)

Q1: Why is cable diameter important?
A: Cable diameter affects current carrying capacity, voltage drop, mechanical strength, and installation requirements in conduits or cable trays.

Q2: How accurate is this calculation?
A: The calculation is mathematically precise for solid circular conductors. For stranded cables, the result represents the equivalent diameter.

Q3: Can this be used for non-circular cables?
A: This formula is specifically for circular cross-sections. For other shapes, different calculation methods are required.

Q4: What units should I use?
A: The calculator uses millimeters for diameter and square millimeters for area. Convert from other units if necessary before calculation.

Q5: How does strand count affect the result?
A: For stranded cables, the calculated diameter represents the overall diameter including the strands, which is slightly larger than the equivalent solid conductor.