Principal Overhead Line (OHL) Engineer

Overview

Lead design and delivery of high‑voltage overhead transmission line projects (132‑765 kV).

Key Responsibilities

• pls‑cadd
• sag‑tension
• structural assessment
• design deliverables
• project coordination
• insulation study

Tasks

-Assess the structural adequacy of towers/poles for reconductoring, uprating, or retrofit purposes. -Coordinating with drafting, structural, civil, electrical, and geotechnical teams for integrated design outputs. -Coordination and technical leadership in the delivery of HV transmission line engineering and design projects/packages. -Preparing and reviewing design deliverables including plan/profile drawings, stringing charts, structure schedules, and loading reports. -Developing transmission line alignments, profiles, and structure spotting using PLS-CADD. -Contribute to constructability assessments including cranage, access, erection sequencing, and outage constraints. -Supporting delivery of construction-ready drawings and material schedules. -Perform insulation coordination studies, including BIL ratings, insulator string design, and strike/arcing distance assessments. -Prepare or review general arrangement drawings, connection details, fabrication drawings, and part lists. -Assessing tower and pole structure loading and coordinating foundation designs with geotechnical inputs. -Coordinate with project managers, clients and other stakeholders to ensure project requirements are met. -Performing sag-tension analysis and validating clearances in accordance with relevant standards (e.g. EN 50341, NG TS 2.04). -Uprating and clearance improvement studies -Support or lead foundation assessments and designs (pad, pile, raft, grillage) in collaboration with geotechnical engineers. -Providing guidance and mentoring to junior engineers and contributing to continuous improvement through lessons learned and design innovation. -Model towers or poles using PLS-TOWER or PLS-POLE, including strength, stability, and member capacity checks. -Prepare cost estimates, project budgets, and resource allocation plans. -Planning, scheduling, and execution of HV transmission line projects including:Prepare cost estimates, project budgets, and resource allocation plans.Coordinate with project managers, clients and other stakeholders to ensure project requirements are met.Coordination and technical leadership in the delivery of HV transmission line engineering and design projects/packages. -Contribute to EMF, induction, and line loss analysis using applicable software; coordinate termination and bonding interfaces with substation teams. -Leading and/or contributing to the following project types:New transmission line designs (greenfield)Reconductoring and sag-tension recalculationsUprating and clearance improvement studiesStructure/pole strength assessments and retrofitsFoundation strengthening (e.g., pile extensions, grillage upgrades)Line cut-ins, tee-offs, and route deviationsTower/pole replacements and asset renewalOPGW or earthwire replacement and shielding reviewsParticipating in design reviews, QA/verification processes, and constructability assessments.Supporting delivery of construction-ready drawings and material schedules.Coordinating with drafting, structural, civil, electrical, and geotechnical teams for integrated design outputs.Providing guidance and mentoring to junior engineers and contributing to continuous improvement through lessons learned and design innovation. -Conduct shielding angle analysis, critical span evaluations, and lightning protection adequacy assessments. -Participating in design reviews, QA/verification processes, and constructability assessments. -Select appropriate conductor types, earthwires, and OPGW based on system requirements and environmental factors. -Review electrical clearances and evaluate thermal ratings of line sections under different loading scenarios.

Requirements

• hv ohl
• reconductoring
• opgw
• foundation strengthening
• chartered engineer
• 8‑13 years

What You Bring

-Demonstrated experience delivering a range of HV OHL projects including new builds, reconductoring, uprating, and asset renewals. -Reconductoring and sag-tension recalculations -OPGW or earthwire replacement and shielding reviews -Structure/pole strength assessments and retrofits -Foundation strengthening (e.g., pile extensions, grillage upgrades) -Proven ability to coordinate across disciplines and review detailed technical outputs to a high standard. -Chartered or Professional Engineer status (or working towards it) is preferred. -A minimum of 8–13 years of relevant experience in HV (132kV+) overhead line transmission design and delivery. -Bachelor’s degree in Engineering (Civil, Structural, Mechanical, or Electrical Engineering) is essential.

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About Aecom

-Launched as a bold independent infrastructure consultancy from a merger of five legacy firms dating back over a century. -Handles everything from geotech to electro-mechanical systems, as seen in the award-winning Romaine Hydroelectric Complex in Canada. -Guides projects through every lifecycle stage in transportation, buildings, water systems, energy, and environmental sectors.

Sector Specialisms