Site Maintenance

Tower Preventive & Corrective Maintenance.

Tower Maintenance SOW

  • Bi-annual and annual tower structure and foundation preventive maintenance
  • Aircraft warning light maintenance
  • Lightning arrestor maintenance
  • Earth resistance and grounding measurement
  • Guy wire tension checking
  • Tower structure and foundation corrective maintenance when required
  • Tower structure and foundation emergency maintenance when required

Status of towers before

  • Bent members, missing members, rusted members
  • Missing bolts & nuts, loose bolts & nuts, rusted bolts & nuts, incorrect bolts & nuts
  • Grouting under tower base plate in bad condition, missing grouting under tower base plate, soil erosion around tower foundation
  • Cracks on tower foundation column, no water drainage in the grouting for tubular towers
  • Tower verticality deviation out of tolerance, rusted antenna brackets, incorrect antenna brackets
  • Tower paint in bad condition, loose guy cables

Status of towers After

  • Bent members – replaced, missing members – installed, rusted members – replaced
  • Missing bolts & nuts – installed, loose bolts & nuts – tightened, rusted bolts & nuts – replaced, incorrect bolts & nuts – replaced
  • Grouting under tower base plate in bad condition – removed and replaced, missing grouting under tower base plate – new grouting applied, soil erosion around tower foundation – restored
  • Cracks on tower foundation column – rectified, no water drainage into the grouting for tubular towers – new drainage installed
  • Tower verticality deviation out of tolerance – rectified, rusted antenna brackets – replaced, incorrect antenna brackets – replaced
  • Tower paint in bad condition – repainted, loose guy cables – tensioned.

Achievements

  • 2013 – 2015: Towers maintained 731
  • 2015 – 2018: Towers maintained 1094
  • 2018 – 2020: Towers maintained 1141
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