Understanding the twist, plumb, and tension (“TPT”) of a guyed tower is critical to ensure a safe working environment when tower maintenance takes place.

The ANSI/TIA-222-Rev. H Standard recognizes several methods for determining guy wire tensions in the field and ensuring that they do not deviate outside prescribed design tolerances. When designing, erecting, or maintaining guyed towers it is important to understand the following:

  • What is TPT?
  • Determining Guy Initial Tensions in the Field
    • Direct Method
    • Indirect Method
      • Pulse Method
      • Tangent Intercept Method
      • Shunt Dynamometer Method
  • Standard Compliance:
    • ANSI/TIA 222
    • ANSI/TIA 322
    • ANSI/ASSP A10.48
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