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
- Enter Cable Length (m), Cable Weight (kg/km from manufacturer specs), and Friction Coefficient (0.35 is typical for conduit).
- Enter the number of 90° Bends and 45° Bends in the conduit run.
- Set Vertical Rise (m) if the cable is being pulled upward through any section.
- Enter Cable Max Rated Tension (N) from the manufacturer's data sheet.
- 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 × gRelated Calculators
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