Transmission & Distribution Line Engineering
OVERHEAD LINE DESIGN — 33KV TO 765KV
End-to-end overhead line engineering for transmission and distribution networks, including route alignment, tower design, conductor selection and construction drawings.
OHL Routes Designed
5000+ km
Max Voltage
765kV
Countries Active
10+
Get Expert Consultation
Our specialists respond within 24 hours with a detailed technical assessment.
Full Scope
WHAT'S INCLUDED IN OUR OverHead Line design SCOPE
Route Survey & Alignment
LiDAR and topographic survey, route corridor selection, desktop study, landowner liaison and environmental constraints mapping.
Conductor & Hardware Selection
ACSR, AAAC, HTLS and OPGW conductor selection, sag-tension analysis, hardware specification and vibration assessment.
Electrical Design & Clearances
Phase-to-phase and phase-to-earth clearance calculations, lightning protection design, insulator string selection and corona analysis.
Tower & Structure Design
Lattice tower, monopole and H-pole structural design including wind, weight and broken-wire load calculations to IEC/IS standards.
Foundation Design
Tower foundation design for pad-and-chimney, raft, pile and anchor foundations based on geotechnical investigation data.
Construction Drawing Package
Tower spotting plan, profile drawings, stringing charts, hardware assembly drawings and BOQ for complete line construction.
Our Process
FROM ROUTE SURVEY TO CONSTRUCTION PACKAGE
01
ROUTE SURVEY & FEASIBILITY
LiDAR data acquisition, aerial survey and desktop route study. Identify key constraints including crossings, environmental sensitivities and access requirements within 3 weeks.
02
ELECTRICAL & MECHANICAL DESIGN
Sag-tension analysis, conductor selection, insulator grading, clearance verification and tower schedule. Long-lead conductor and tower items identified for early procurement.
03
STRUCTURAL & FOUNDATION DESIGN
Produce tower structural models, load schedules and foundation designs for all tower types. Geotechnical data incorporated for site-specific foundation solutions.
04
CONSTRUCTION DRAWING ISSUE
Issue IFC tower spotting plans, profile drawings, foundation drawings, stringing charts and hardware schedules to enable contractor procurement and mobilisation.
05
CONSTRUCTION SUPPORT
Respond to RFIs, review contractor method statements, carry out tower inspection visits and compile as-built drawings and line parameters for client handover.
Capabilities
Technical Specifications
Voltage Range | 11kV, 33kV, 66kV, 110kV, 132kV, 220kV, 400kV, 765kV |
Tower Types | Lattice, monopole, guyed-V, H-pole, angle and tension towers |
Conductor Types | ACSR, AAAC, ACCC, HTLS, OPGW, AAC — all standard sections |
Foundation Types | Pad-and-chimney, raft, bored pile, rock anchor, screw pile |
Standards Followed | IEC 60826, IS 802, IS 5613, EN 50341, IEEE 524, CEA |
Software Used | PLS-CADD, TOWER, SAG10, AutoCAD, Civil 3D |
Deliverables | Route plans, profile drawings, tower schedules, BOQ, as-built |
Proof of Work
Overhead Line Projects We've Delivered
Electrical Engineering Consultant in UK