EPE Sag and Tension Calculator
Conductor Library
Select a preset conductor to auto-fill all wire data fields. Polynomial coefficients are area-weighted virtual stresses.
Outer Strands (Aluminum)
EFO = final modulus of elasticity of outer strands × (Aouter/Atotal), per Eq. 9-5.a₀a₁a₂a₃a₄
Outer initial stress-strain O-I (MPa/100)
c₀c₁c₂c₃c₄
Outer creep curve O-C (MPa/100)
Core Strands (Steel)
EFC = final modulus × (Acore/Atotal), Eq. 9-6.b₀b₁b₂b₃b₄
Core initial stress-strain O-I (MPa/100)
d₀d₁d₂d₃d₄
Core creep curve O-C (MPa/100)
Sagging Condition
Sagging condition = Initial: Tension H₀ during stringing, before any creep or load event.
Creep Reference Weather Case
The WC under which creep occurs over 10 years. Typically no ice, no wind, avg temperature.
212°F/100°C bare wire = NESC default
Evaluation Weather Cases
Under column PCP, check the weather cases to be included in the final after load evaluation.
| # | Description | T°C | Ice cm | Wind Pa | k (N/m) | PCP |
|---|
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Configure inputs and press Calculate
