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Calcimator

Fiber Cable Pull Tension Calculator

Calculate maximum pull force for fiber cable installation from cable weight, route bends, friction, and vertical rise.

Inputs

m
kg/km
m
N

Results

Total Pull Tension

2,724.1 N

Safety Factor

0.99×

Max Safe Pull Length

297 m

Straight Pull Force117.7 N
Bend Multiplier23.14×
Vertical Component0 N
Within Limit (1=Yes)0
Sidewall Pressure9,080.4 N/m
How to Use This Calculator
  1. Enter Cable Length (m), Cable Weight (kg/km from manufacturer specs), and Friction Coefficient (0.35 is typical for conduit).
  2. Enter the number of 90° Bends and 45° Bends in the conduit run.
  3. Set Vertical Rise (m) if the cable is being pulled upward through any section.
  4. Enter Cable Max Rated Tension (N) from the manufacturer's data sheet.
  5. Review Total Pull Tension (N), Safety Factor (×), and Max Safe Pull Length — if Safety Factor is below 1, reroute or add pull points.
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Formula

T = μ × W × L × g × e^(μ×Σθ) + W × Δh × g

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