Guy Tension Analyzer

The Guy Tension Analyzer is a component of the Distribution Engineering Toolbox, a collection of Windows-based software tools developed to support routine distribution engineering operations. In addition to the Guy Tension Analyzer for guy tension calculation, the Toolbox Includes applications for transformer loading analysis, cable pulling tensions, overhead line design (sag, blowout, loading), voltage drop and flicker analysis, and others. User convenience and ease of customization to individual utility preferences are integral Toolbox features.

The Guy Tension Analyzer software tool is used to calculate tensions on guy wires and guy anchors for dead-end and angle distribution poles. The tool can handle three types of guy wire configurations:

  • standard (guys connected directly to anchors from a line pole).
  • span guy.
  • sidewalk guy.

In the standard and span guy configurations, up to ten lines (ten lines in each direction for angle poles) can be accommodated, as well as five guy wires and anchors. The tool provides complete flexibility to connect any guy to any anchor. In the sidewalk configuration, a single guy and strut is accommodated. The Guy Tension Analyzer, with appropriate application techniques, can be used to perform guy calculations for the following special situations:

  • double dead ends (if the lines are perpendicular)
  • dead-ending of certain conductors at a tangent pole with other conductors continuing on (such as a transition from a three-phase feeder to a single-phase feeder, with two phases terminating at the pole)
  • changes of conductor size at a tangent pole
  • slack spans

The program assumes that the guy is directly in line with the resultant forces exerted by the lines attached to the pole. This means that the guys are directly in line with the attached lines on a dead-end pole, and bisect the angle for angle poles. Wind loading on the conductors (with diameter increased by ice thickness) in line with the guy is included in the calculations for angle structures, per the NESC. Calculated guy and anchor tensions, along with safety factors based on user input, are used to recommend minimum guy and anchor sizes.

Tagged: P4-9, P9, Engineering Guidelines, Engineering Analysis Software, Economic Analysis

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