Calculation Methodology
ConductorPro's calculation reports for flexible slack conductors, flexible strained conductors and droppers state that their calculations are performed in accordance with IEC 60865-1:2011 and IEC 60865-2:2015.
- IEC 60865-1:2011
- IEC 60865-2:2015
These references identify the calculation methodology used. They do not indicate certification or independent validation of ConductorPro.
Flexible Slack and Strained Conductors
Calculations use short-circuit current and duration, frequency, support span and spacing, conductor dimensions and mass, support stiffness and static tensions. The reports present:
- Electromagnetic load
- Swing-out angles
- Short-circuit tensile force
- Dynamic midspan sag
- Post-fault drop force
- Horizontal displacement
- Minimum air clearance
- Applicable structure or connector loads
Bundled Strained Conductors
For bundled strained-conductor arrangements, the calculation also evaluates the pinch force.
Droppers
The dropper calculation uses conductor and support geometry, sub-conductor data and short-circuit inputs. Its report presents:
- Short-circuit tensile force
- Maximum horizontal displacement
- Minimum air clearance
- Pinch force
- Design loads for supports and connectors