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Overhead Catenary Wire Sag & Blowout Calculator

Easily calculate and compute overhead catenary wire sag & blowout calculator with accurate equations, live formulas, and expert guidance.

Distance between adjacent catenary masts.

Regulated counterweight tension.

Copper contact wire mass (e.g. Cu-ETP 120 mm² ~1.07 kg/m).

Perpendicular ambient wind velocity.

Outer aerodynamic profile width.

Calculated Result
314.79 mm

Mid-Span Contact Wire Sag

Mid-Span Contact Wire Sag

314.79 mm

Vertical Sag Mm

314.79346499999997

Wind Blowout Mm

170.13888888888889

Total Resultant Sag Mm

357.8298018877856

Wind Force N Per M

5.671296296296297

314.79 — mm

Calculation Breakdown

  1. Applied FormulaCalculates vertical catenary contact wire gravity sag, crosswind lateral displacement (blowout), and pantograph collector head security margins across support spans.S = \frac{w L^2}{8 T}, \quad B_{wind} = \frac{w_{wind} L^2}{8 T}

Catenary Wire Sag & Blowout Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.079157236315Mid-Span Contact Wire Sag

What Is the Overhead Catenary Wire Sag & Blowout Calculator?

This tool computes overhead catenary wire sag & blowout calculator with high precision arithmetic.

How Does the Overhead Catenary Wire Sag & Blowout Calculator Work?

Calculates vertical catenary contact wire gravity sag, crosswind lateral displacement (blowout), and pantograph collector head security margins across support spans.

Overhead Catenary Wire Sag & Blowout Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

S=wL28T,Bwind=wwindL28TS = \frac{w L^2}{8 T}, \quad B_{wind} = \frac{w_{wind} L^2}{8 T}

Calculates vertical catenary contact wire gravity sag, crosswind lateral displacement (blowout), and pantograph collector head security margins across support spans.

How to Use the Overhead Catenary Wire Sag & Blowout Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Overhead Catenary Wire Sag & Blowout Calculator Example

Input Values:

spanLengthM:60
wireTensionKN:15
wireLinearWeightKgM:1.07
crosswindSpeedKmh:100
wireDiameterMm:12
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required mm.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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