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Roosting and Nest Management - page 2 / 2

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  • Insulation: Using covers or cover-up materials on various electrical components to prevent direct contact with the component that would cause the electrocution

Collision Minimization Measures Pre-construction eorts

  • Use vegetation, topography or man-made structures to shield lines

  • Cluster lines together

  • Site lines away from obvious flyways, if possible

  • Implement certain structure configurations in sensitive areas, if feasible

Post-construction eorts

  • Monitoring collisions through the reporting system

established as part of the APP

  • Marking lines

Marking lines

Marking lines with various types of markers can decrease but not eliminate bird collisions. The different types of markers vary in effectiveness. Devices include stationary bird and swan flight diverters and moving clamp-on markers (e.g., flappers). Examples of these devices are shown in the photos. Tri-State uses a variety of these markers on their lines. The decision to use them is based on:

  • Effectiveness

  • Line voltage rating

  • Line location

  • Weight of markers

  • Wind/ice loading factors

  • Durability

  • Ease of installation

  • Effect on the view shed

  • Susceptibility to vandalism

Clamp-on markers

Bird flight diverters

Contact Information

Tri-State Generation and Transmission Association 1100 W. 116th Ave., Westminster, Colo. 80234 Phone: 800-332-0498 For more information, visit www.tristategt.org

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