Transmission Line Engineering.
Overhead lines from 66 kV to 765 kV: route, sag-tension and clearance design, lattice towers and poles, foundations, insulation coordination and earthing.
Project location, local requirements and any site support are confirmed for the agreed scope.
Explore Global DeliveryEngineering Scope.
The support is selected around your Asset, the decision ahead and the agreed Project Stage.
Line Design
- Route and terrain model from survey data
- Sag-tension calculations
- Stringing information
- Electrical clearances to ground, crossings and structures
- Plan-and-profile drawings
Structures
- Lattice steel towers
- Pole structures in steel, concrete, wood, laminated wood and fibre-reinforced polymer
- Tower and pole foundations
Studies
- Insulation coordination and switching transients
- Tower footing and earthing design
- Interference studies
- Electromagnetic field measurement
Existing Lines
- Retrofit and upgrade engineering
- Aerial visual and thermal inspection
- Thermography audits
Proof in Practice · Chemical · Detailed Engineering
Detailed Engineering of a Multi-Specialty Chemical Plant
Mechanical, electrical, instrumentation and thermal design delivered together for a multi-product chemical plant.
- Sector
- Industrial & Process Plants
- Year
- 2023
How We Work on It.
The method behind every engagement. The detail is set out in the proposal and the design basis.
Inputs and Deliverables.
A practical starting point and the Engineering outputs to agree for your Project.
What We Need from You
- Line voltage, circuit configuration and route endpoints
- Route corridor, topographic survey and crossing constraints where available
- Conductor, loading and weather criteria or the governing utility specification
- Geotechnical information for structure foundations where available
- Applicable standards, programme and current stage
Send what is available. We will identify missing information before confirming the scope and programme.
What You Receive.
- Line design basis
- Terrain model and plan-and-profile drawings
- Sag-tension calculations
- Structure loading and clearance checks
- Tower or pole design drawings within scope
- Foundation design from confirmed loads and geotechnical data
- Insulation coordination, earthing and interference reports where required
- Technical specifications for materials and structures
The exact deliverables are fixed in the agreed scope for each Project.
Standards and Compliance.
We engineer to the standards and regulations that govern your Project, fixed in the design basis.
Typical references for this Service: IEC 60826, IEC 60071, and the national overhead line code.
Applicable standards and editions are agreed and fixed in each Project's design basis.
How We Assure the Work
Questions Clients Ask.
Which voltages?
Overhead lines from 66 kV to 765 kV.
Do you design the structures too?
Yes. Lattice towers, poles in several materials, and their foundations, all taken from the same line loads.
Can you inspect existing lines?
Yes. We carry out aerial visual and thermal inspection and design retrofits and upgrades.
Where This Service Applies.
This Service appears in the scope of 6 Sectors. Select a Stage to see the full scope for that Sector.
This Service in Practice.
Selected engagements, described without confidential details.
