The document discusses the advantages of replacing traditional lattice overhead transmission line structures with monopole structures, citing benefits such as reduced footprint, lower maintenance costs, and improved reliability. It compares the two types of structures, highlighting that monopoles have better wind-load capacity and flexibility in design. The document also mentions compliance with national and international standards and approval from relevant authorities.

1. POLE TYPE
STRUCTURE

2. Traditionally overhead transmission lines
are built on lattice type structures.
Significant ROW and aesthetics issues
have stalled construction of new
transmission line corridors.
2

3. Replacement of traditional lattice
structures with MONOPOLE structures is
a significant step in this direction.

4. MONOPOLE
ADVANTAGE
Significant Wind-
Loading Capacity
Smallest Footprint
of All tower types
Less Components,
Fast InstallationGood Appearance
Flexibility in
design
Higher Reliability
under Extreme
Condition

5. COMPARISON
5
POLE TYPE STRUCTURE LATTICE STRUCTURE
MAINTENANCE COST LESS MORE
INSTALLATION COST LESS MORE
DESIGN RISK AT JOINTS LESS MORE
LOGISTICS LESS MORE
ROW REQUIREMENT LESS MORE
FLEXIBILITY MORE LESS
TOWER COST MORE LESS

6. LATTICE TOWER – 5860 mm
MONOPOLE– 1190 mm
FOOTPRINT LENGTH
SMALLEST FOOTPRINT OF ALL
TOWER TYPES

7. 132 kV STRUCTURE COMPARISON
7
TYPE OF
STRUCTURE
LATTICE TOWER WITH
METALLIC CROSSARM
MONPOLE WITH
INSULATED
CROSSARM
Description “P" type “DA" type
Overall Height 26970 mm 16400 mm
Footprint 5860 mm 1190 mm
Design span 310 m 150 m

8. STEEL MONOPOLES ARE MORE
FLEXIBLE THAN LATTICE TOWERS
ROUND AND MULTI SIDE DESIGN
CAN REDUCE WIND LOAD

9. Professional Design Team specialized in Poles Designing
OUR DESIGN CAPABILITIES
Designs as per all National and International Standards
9

10. SLIP JOINTS FLANGE JOINTS

11. CONCRETE FOUNDATION WITH
ANCHOR BOLTS
DIRECT
EMBEDDED CAISSON FOUNDATION

12. SHEET CUTTING SHEET BENDING
PUNCHING WELDING GALVANIZING
MANUFACTURING FACILITY

13. MATERIAL TESTING
GALVANIZING TESTINGCRACK DETECTIONS (WELDING TEST)
TESTING

14. LOAD TESTS ARE MADE AT WELL
REPUTED TESTING FACILITIES:
CPRI (Central Power Research Institute)
SERC (Structural Engineering Research
Centre)

15. APPROVALS
POLE DRAWINGS APPROVED BY APTRANSCO

16. POLE DRAWINGS APPROVED BY APTRANSCO

17. DRAWINGS APPROVED BY ECG, GHANA