Description of Steel Lattice Tower Transmission:

1. Products

Guyed /Self-supporting Power Transmission Line Galvanized Lattice tower 

 

2. Standards

    Fabricated as per GB, EN or ASTM standard .

 

3. Technical Data

 

Design

1. Voltage grade

10KV~750KV

Structure Steel

 

High Tensile Steel

Mild Steel

2. Grade

Q345B,Q345C,Q3455D,Q420B

Q235B, Q235C,Q235D

EN10025:S355JR, S355J0, S355J2

EN10025:S235JR,S235J0,S235J2

ASTM A572 Gr50, Gr65

ASTM A36

3. Tension strength  (Mpa)

470~630 Mpa

360~510 Mpa

4.Yield strength (t≤16mm) (Mpa)

355 Mpa

235 Mpa

5. Elongation (%)

20

24

6. Sharpy V-notch Test

27J(20°C)

Q345B/S355JR

27(20°C)

Q235B/S235JR

27(0°C)

Q345C/S355J0/A572 Gr50

27(0°C)

Q235C/S235J0/A36

27(-20°C)

Q345D/S355J2

27(-20°C)

Q235D/S235J2

Bolts & Nuts

7. Grade

Grade 4.8, 6.8, 8.8

8. Standards for mechanical properties

8.1 Bolts

ISO 898-1

8.2 Nuts

ISO 898-2

8.3 Washers

ISO 6507-1

9. Standards for Dimensions

9.1 Bolts

DIN7990/DIN931/DIN933

9.2 Nuts

ISO4032/ISO4034

9.3 Washers

DIN7989/ DIN127B/ISO7091

 

 

Marking

10. Method of marking of the members

Hydraulic Press Stamping

Welding

11. Method

CO2 Shielded Arc Welding & Submerged Arc Welding(SAW)

12. Standard

AWS D1.1

Galvanizing

13. Galvanization standard of steel sections

ISO 1461 or ASTM A123

14. Galvanization standard of bolts and nuts

ISO 1461 or ASTM A153

Capacity

15. Maximum Production Capacity of Steel Tower per annum

72,000 Metric ton

16. Maximum Capacity of Galvanizing Plant per annum

1,446,000Metric ton

Test

17. Factory test

Tensile test, Elements analysis, Sharpy V-notch test(impact test), Cold Bending, chemical test, Hammer test, coating test,hardness test, prototype test, welding test 

18. Destructiontest


      

 

4. Quality control

100% inspection: Each member will be checked by our QC team to ensure all members are qualified prior to delivery.

 

5. Package

  Set-wisely packing or member-wisely packing as per client's requirements.

  Tower members: One steel tower is separated into several bundles.

  Bolts: Packing material is nylon bag or steel drum or wooden box.