Services: Tower Inspections

P-SEC inspects communication towers for the condition of the tower and the appurtenances it supports; to obtain accurate structural data to be able to correctly perform a structural analysis, and to confirm that modifications were appropriately completed when reinforcement/modification is required.  After each site visit, P-SEC provides a detailed report that includes the observations made, a list of deficiencies and items that require maintenance, and photographs taken from the ground and from the tower.  P-SEC’s staff is experienced in tower climbing and has completed training courses in Tower Climbing Safety and Rescue Training.

P-SEC performs condition assessments and field mapping in accordance with recommendations by with governing American and Canadian Standards, which are ANSI/TIA/EIA 222 and CSA‑S37, respectively.  It is recommended that guyed towers be inspected for maintenance and condition assessments at a minimum, once every three years in the United States and once every four years in Canada.  Similarly, self supporting towers are recommended to be inspected a minimum of once every five years in the United States and once every six years in Canada.  More frequent inspections may be appropriate if the towers are used for essential communications, located in coastal regions (or other corrosive areas) or subjected to frequent vandalism.  Towers should also be inspected after severe seismic events, wind and/or ice storms.

The main items to be inspected include the following:

  • Structure Condition (damaged, loose, or missing structural members; connections; climbing facilities; etc.)
  • Finish (paint, galvanizing, etc.)
  • Lighting
  • Grounding
  • Antennas, Feed Lines, and Mounts
  • Other Supported Appurtenances
  • Insulators
  • Concrete Foundations
  • Guy Wires
  • Guy Anchors
  • Tower Alignment

Field mapping of appurtenances includes:

  • Antenna Inventory (elevation, orientation, type, dimensions, mount details, feed lines)
  • Other Appurtenances (climbing ladders, waveguide ladders, platforms, lighting, ice shields, etc.)
  • Feed Line Inventory (type, orientation on tower, termination elevation)

Field mapping of structural components includes:

  • Configuration of Each Section (section height, face width, panel height, bracing configuration, etc.)
  • Structural Member Sizes (if pipe, wall thickness is measured with ultra sound device)
  • Base Type
  • Guy Anchor Locations
  • Guy Wire Information (elevations, types, sizes)
  • Connection Details