Chapter 15

Sag and Tension of Conductor

15.1 Catenary Cables 15-2

Level Spans • Conductor Length • Conductor Slack • Inclined Spans • Ice and Wind Conductor Loads • Conductor Tension Limits

15.2 Approximate Sag-Tension Calculations 15-10

Sag Change with Thermal Elongation

15.3 Numerical Sag-Tension Calculations 15-13

Stress–Strain Curves • Sag-Tension Tables

15.4 Ruling Span Concept 15-18

Tension Differences for Adjacent Dead-End Spans • Tension Equalization by Suspension Insulators • Ruling Span Calculation • Stringing Sag Tables

15.5 Line Design Sag-Tension Parameters 15-27

Catenary Constants • Wind Span • Weight Span • Uplift at Suspension Structures • Tower Spotting

15.6 Conductor Installation 15-28

Conductor Stringing Methods • Tension ...

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