Role & responsibilities:
He / She will be responsible for the end-to-end structural design, analysis and documentation of overhead transmission lines, including towers, gantries and associated structures, ensuring technical excellence, standards compliance and timely delivery of all design outputs for ETPL projects Using PLS CAD, PLS Tower, PLS Pole, Staad Software.
Required Capability
Route selection and survey utilisation
- Interpret and utilise topographical, LiDAR and conventional survey data for preliminary and detailed route selection, considering ROW, environmental, crossing and constructability constraints.
- Work with and validate plan & profile drawings as the primary basis for line design, tower positioning and clearance assessment.
Line modelling and optimisation (PLS-CADD)
- Develop accurate 3D line models in PLS-CADD, incorporating terrain, conductors, OPGW/earthwire and structure libraries.
- Perform tower spotting, span optimisation, statutory and electrical clearance checks, and sagtension calculations under governing weather and loading conditions.
Structural design and verification (PLS-TOWER / TOWER)
- Transfer and manage structural loads from PLS-CADD into PLS-TOWER/TOWER, carry out member force analysis, section selection and code checks for all normal and exceptional load cases.
- Design and verify various tower and gantry configurations (suspension, tension, angle, terminal, river-crossing, multi-circuit and special structures).
Construction documentation and technical support
- Produce complete and constructible design and construction documentation including calculations, drawings, schedules and reports in accordance with project requirements.
technical support to foundation, erection and site teams
Key Responsibilities:
- Undertake
independent structural design and analysis
of overhead transmission line towers, gantries and associated steel structures using PLS-TOWER / TOWER
, ensuring compliance with applicable standards and client specifications. - Develop, manage and update
PLS-CADD models
for assigned lines, including import of survey data, application of design criteria, tower spotting, sagtension calculations and clearance verification. - Apply loading and design requirements in accordance with
IS 802, IS 875 (wind), IEC 60826, ASCE 10
, and relevant utility/client technical specifications, and document the same in Design Basis Reports (DBR)
. - Prepare and review detailed
tower design calculations
, member utilisation reports, critical load case summaries and structural adequacy checks for all defined load cases. - Produce, coordinate and quality-check the following
design deliverables
for ETPL projects: - Engineering inputs to
Route Alignment / Route Survey Reports
. Plan & Profile drawings
with finalised tower locations, levels and clearances. Tower Schedule / Tower Spotting Data
indicating tower types, spans, coordinates, top levels and remarks. SagTension calculations and sheets
for conductors and OPGW/earthwire under governing conditions. Structure load data / reaction schedules
(axial, shear and moment) for foundation design. GA drawings, fabrication drawings, shop drawings and Bill of Materials (BoM)
for towers, gantries and extensions. Design Calculation Reports and Design Basis Reports
, fully aligned with contract requirements and ETPL QA procedures. - Liaise closely with:
Civil/foundation design teams
to provide complete and accurate structural loads and geometry for foundation design and optimisation. Electrical design teams
to ensure that phase configurations, insulator strings, clearances and insulation coordination are correctly reflected in the structural design. Project management and site teams
to address technical clarifications, non-conformances and value-engineering opportunities during execution. - Participate in
internal and client design reviews
, respond to comments constructively, and incorporate agreed changes in models, drawings and documents up to final approval. - Contribute to the development and maintenance of
ETPLs internal tower libraries, design templates, checklists and standard procedures
, supporting continuous improvement of design efficiency and quality.
Technical Skills:
Software proficiency
- Strong, demonstrable working experience in
PLS-CADD
for 3D line modelling, criteria application, tower spotting, sagtension analysis, clearance checks and generation of plans, profiles and reports. - Strong, demonstrable working experience in
PLS-TOWER / TOWER
for detailed analysis and design of lattice towers and gantries, including member design and code checks. - Working proficiency in
AutoCAD
for review and minor modification of plan & profile, GA and fabrication drawings. - Good command of
MS Excel and MS Office
for custom calculation tools, tabulation of results and preparation of formal reports. .
Standards and codes required working knowledge
IS 802 (Part 1/2/3):
Use of structural steel in overhead transmission line towers loading, design, fabrication and testing principles. IS 875 (relevant parts):
Wind loads on structures and their application to transmission line structures. IEC 60826:
Reliability-based loading and strength philosophy for overhead lines. ASCE 10:
Design guidelines for latticed steel transmission structures, particularly for multi-standard or international projects. - Familiarity with typical
Indian utility / transmission licensee technical specifications
will be considered an advantage.
Domain knowledge
- Sound understanding of
mechanical and environmental loading
on lines, including wind, self-weight, broken wire, longitudinal, erection, maintenance and special load cases. - Knowledge of
conductor and OPGW behaviour
(sagtension, creep, thermal effects) and their impact on clearances, tower heights and span arrangements.
structure–foundation interaction
