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INTRODUCTION
 Traditionally overhead transmission lines have
been built on lattice type structures.
 Significant ROW and aesthetics issues have
stalled construction of new transmission line
corridors.
 Solutions with narrow corridors and smaller
footprints became the crying need of the day for
completion of critical transmission corridors.
 Replacement of traditional structures with
monopole kind of structures is a significant step
in this direction.
 Less right-of-way
 Small foundations take less land and
hence reduce the foot-print.
 For Example a 132 kV Mono pole
can be erected within a foot print of
2 Mtrs.
 Efficiently erected along Highways
and Railway Lines
ADVANTAGES
ADVANTAGES
Monopole
Significant
Wind-Loading
Capacity
Smallest
Footprint of All
tower types
Less
Components,
Fast Installation
Good
Appearance
Flexibility in
design
Higher Reliability
under Extreme
Condition
 Steel monopoles are more flexible than
lattice towers
 In case of Broken wire more deflection of
steel pole can reduce the tension in the
intact span and bending moment at the base
 Round and Multi side design can reduce
wind load
 Steel Poles are more effective in case of
tornado or hurricanes
BETTER RELIABILITY UNDER
EXTREME CONDITION
Pole type Structure Lattice Structure
Tower Cost Itself More Less
Maintenance Cost Less More
Installation Cost Less More
Design Risk at Joints Less More
Flexibility More Less
Aesthetics Yes --
Land Occupation (ROW) Very Less High
Logistics Less More
Environment friendly Yes --
COMPARISON WITH LATTICE STRUCTURE
 Various structure configuration –
monopoles and frames.
 Different voltages and circuits on same
pole.
 Distribution under-built.
 Multiple circuits in different orientation.
 Consist of tapered steel tubes that fit over each other to form a
stable pole.
 May be guyed or self supported and be fitted with climbing
rungs where necessary.
 Sections should be made from hollow, heavy duty, thick steel
tubes, flanged steel tubes or low-alloy, high-strength steel.
 Shaft section should be a constant-tapered hollow steel section.
 Slip joints should be designed with suitable engineering
practices.
 Should be made from galvanized hollow steel pipes or high
strength steel
CHARACTERISTICS OF MONOPOLE
 Professional Design Team specializing in Transmission Poles
 Expertise of Designing as per all national and international Standards as
 Standards for Designing : Guide Line ASCE – 48 - 11
OUR DESIGN CAPABILITIES
MANUFACTURING PROCESS
Raw Material
Testing
Cutting
Molding and
Bending
Welding
Longitudinal
Dimension
Verification
Flange
Welding
Hole DrillingCalibration
Deburring Galvanization Package
MANUFACTURING FACILITY
Sheet Cutting Sheet Bending
Punching Welding Galvanizing
 Material :Hot rolled coil from Q235 to Q460, ASTM 573 GR65, GR50,
SS400, SS490, ST52-3
 Hot dip galvanized Following BS EN ISO 1461 -1999, ASTM A 123 or
any other standard by client required.
 Welding as per IS 813, AWS D 1.1
 Base Plate ASTM A 633 GRE
KEY SPECIFICATION
Steel Monopole sections are easily joined to each other to erect the tower.
STEEL POLE CONNECTION OPTIONS
Slip Joints Flange Joints
Erection of Steel Monopoles do not need much of foundation work.
We can erect the monopole by
STEEL POLE FOUNDATION OPTIONS
Concrete
foundation with
anchor bolts
Direct
Embedded
Caisson
Foundation
TESTING
Material Testing Dimension Testing
Galvanizing TestingCrack Detections (Welding Test)
Load testing can be arranged by the third parties :-
 CPRI (Central Power Research Institute)
 SERC (Structural Engineering Research Centre)
 Richardson & Cruddas
TESTING & VALIDATION
Pole Drawings Approved by APTRANSCO
APPROVALS
Drawings Approved by ECG, Ghana
APPROVALS
COMPARISON BETWEEN CONVENTIONAL LATTICE
TOWER WITH METALLIC CROSS ARM AND POLE
TYPE STRUCTURE WITH INSULATED CROSS ARM
VOLTAGE RATING 132 kV
No. of circuits 2
Wind Zone 5
Wind pressure 182 kg/m2
Conductor ACSR Panther
Earth wire 7/3.15
TYPE OF STRUCTURE : LATTICE TOWER MONOPOLE
Design span : 310 m 150 m
Description : “P" type “DA" type
Overall Height : 26970 mm 16400 mm
Footprint : 5860 mm 1190 mm
SUPREME & CO. PVT. LTD.
P-200, BENARAS ROAD, HOWRAH -711108, WEST BENGAL, INDIA
Phone : +91-033-26516701-05
Fax : +91-033-26516706
Email : sales@supreme.in & info@supreme.in
Website : www.supreme.in

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Pole type structures

  • 1.
  • 2. INTRODUCTION  Traditionally overhead transmission lines have been built on lattice type structures.  Significant ROW and aesthetics issues have stalled construction of new transmission line corridors.  Solutions with narrow corridors and smaller footprints became the crying need of the day for completion of critical transmission corridors.  Replacement of traditional structures with monopole kind of structures is a significant step in this direction.
  • 3.  Less right-of-way  Small foundations take less land and hence reduce the foot-print.  For Example a 132 kV Mono pole can be erected within a foot print of 2 Mtrs.  Efficiently erected along Highways and Railway Lines ADVANTAGES
  • 4. ADVANTAGES Monopole Significant Wind-Loading Capacity Smallest Footprint of All tower types Less Components, Fast Installation Good Appearance Flexibility in design Higher Reliability under Extreme Condition
  • 5.  Steel monopoles are more flexible than lattice towers  In case of Broken wire more deflection of steel pole can reduce the tension in the intact span and bending moment at the base  Round and Multi side design can reduce wind load  Steel Poles are more effective in case of tornado or hurricanes BETTER RELIABILITY UNDER EXTREME CONDITION
  • 6. Pole type Structure Lattice Structure Tower Cost Itself More Less Maintenance Cost Less More Installation Cost Less More Design Risk at Joints Less More Flexibility More Less Aesthetics Yes -- Land Occupation (ROW) Very Less High Logistics Less More Environment friendly Yes -- COMPARISON WITH LATTICE STRUCTURE
  • 7.  Various structure configuration – monopoles and frames.  Different voltages and circuits on same pole.  Distribution under-built.  Multiple circuits in different orientation.
  • 8.  Consist of tapered steel tubes that fit over each other to form a stable pole.  May be guyed or self supported and be fitted with climbing rungs where necessary.  Sections should be made from hollow, heavy duty, thick steel tubes, flanged steel tubes or low-alloy, high-strength steel.  Shaft section should be a constant-tapered hollow steel section.  Slip joints should be designed with suitable engineering practices.  Should be made from galvanized hollow steel pipes or high strength steel CHARACTERISTICS OF MONOPOLE
  • 9.  Professional Design Team specializing in Transmission Poles  Expertise of Designing as per all national and international Standards as  Standards for Designing : Guide Line ASCE – 48 - 11 OUR DESIGN CAPABILITIES
  • 10. MANUFACTURING PROCESS Raw Material Testing Cutting Molding and Bending Welding Longitudinal Dimension Verification Flange Welding Hole DrillingCalibration Deburring Galvanization Package
  • 11. MANUFACTURING FACILITY Sheet Cutting Sheet Bending Punching Welding Galvanizing
  • 12.  Material :Hot rolled coil from Q235 to Q460, ASTM 573 GR65, GR50, SS400, SS490, ST52-3  Hot dip galvanized Following BS EN ISO 1461 -1999, ASTM A 123 or any other standard by client required.  Welding as per IS 813, AWS D 1.1  Base Plate ASTM A 633 GRE KEY SPECIFICATION
  • 13. Steel Monopole sections are easily joined to each other to erect the tower. STEEL POLE CONNECTION OPTIONS Slip Joints Flange Joints
  • 14. Erection of Steel Monopoles do not need much of foundation work. We can erect the monopole by STEEL POLE FOUNDATION OPTIONS Concrete foundation with anchor bolts Direct Embedded Caisson Foundation
  • 15. TESTING Material Testing Dimension Testing Galvanizing TestingCrack Detections (Welding Test)
  • 16. Load testing can be arranged by the third parties :-  CPRI (Central Power Research Institute)  SERC (Structural Engineering Research Centre)  Richardson & Cruddas TESTING & VALIDATION
  • 17. Pole Drawings Approved by APTRANSCO APPROVALS
  • 18. Drawings Approved by ECG, Ghana APPROVALS
  • 19. COMPARISON BETWEEN CONVENTIONAL LATTICE TOWER WITH METALLIC CROSS ARM AND POLE TYPE STRUCTURE WITH INSULATED CROSS ARM VOLTAGE RATING 132 kV No. of circuits 2 Wind Zone 5 Wind pressure 182 kg/m2 Conductor ACSR Panther Earth wire 7/3.15 TYPE OF STRUCTURE : LATTICE TOWER MONOPOLE Design span : 310 m 150 m Description : “P" type “DA" type Overall Height : 26970 mm 16400 mm Footprint : 5860 mm 1190 mm
  • 20. SUPREME & CO. PVT. LTD. P-200, BENARAS ROAD, HOWRAH -711108, WEST BENGAL, INDIA Phone : +91-033-26516701-05 Fax : +91-033-26516706 Email : sales@supreme.in & info@supreme.in Website : www.supreme.in