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Utilities Power-Line Engineering and Corridor Mapping

PROMAP has been a contracted service provider to the South African electricity utility company (ESKOM) for the past 17 years.

We provide surveys to assist with the design, route selection, construction and maintenance of power transmission lines and corridor mapping:

  • Electrical and structural design
  • The accurate terrain measurements allow assessing the feasibility of construction in such places as, e.g. Valleys between mountains, hills and dunes
  • Most advanced data to select the route planning and construction with the lowest environmental and economical costs
  • Identification and calculation of slopes changes for templating and design
  • Capacity to predict actual and future areas prone to flooding
  • Ensures that the terrain’s morphology is good enough to meet the planning/construction requirements
  • The type of the terrain, i.e. rocky, heavily vegetated, existence of water bodies.
  • Better definition of the failure surfaces, deformation patterns, and morphologies required for understanding failure modes.
  • High-resolution data for evaluation of analytical and numerical models of terrain deformations
  • The accurate terrain measurements allow assessing the feasibility of construction in such places as, e.g. Valleys between mountains, hills and dunes
  • Identification and/or construction of access routes
  • Determine of 3D Co-ordinates on existing power-line features
  • Tower Pegging
  • Setting out of Self-supporting, Guyd Structures and Stubs
  • Pre-Commissioning inspections

Surveys are also undertaken to assist with power-line maintenance inspections:

  • Analyze the risks of transmission line sagging, tree interference, and clearance
  • Monitor vegetation growth and tree locations.
  • Tower Spotting
  • As-built surveys and GIS capturing
  • Power-line risk management assessment

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