Grid Power Transmission Line Steel Tower

1. Design Criteria of Steel Tower
The standard design criteria for the steel latticed structures shall conform to ASCE 10-97 "Design of Latticed Steel Transmission Structures"
 
2. Fabrication
2.1 Prototype assembly of each new tower type should be done before mass production.
2.2 Hot-dip galvanization in accordance with ISO1461-2009 and ASTM A123.
 
3. Steel Material
3.1 Legs Steel will be high tensile steel like Q420/Q345 with yield strength is 420/345MPa.
3.2 Others Steel will be middle steel like Q235 with yield strength is 235MPa.
3.3 Bolts will be follow ISO 898 grade 6.8/8.8
 
4. Quality and Quantity
4.1 We have been providing world top class design, engineering and manufacturing for telecommunication tower and related infrastructure materials worldwide and gaining a very good reputation in this field during past decades. 
4.2 Our professional team have more than 80 years experience in this industry field. We are paying a lot of attention for quality and quantity issues during each procedures in order to avoid any possible mistakes which help our clients a lot.  

5. FACTOR OF SAFETY
Normal Condition = 1.65
Broken Wire Condition (Two wire at a time) = 1.15*
Stringing and Maintenance (One wire at a time) = 1.50*
* shall be 1.65 for cross arm