Transmission Line telecommunication Tubular 3 Legs Lattice Telecom Tower
Communication tower consists of tower body, platform, lightning rod, ladder, antenna support and
other steel components, and by hot galvanized anti-corrosion treatment, mainly for microwave,
ultrashort wave, wireless network signal transmission and transmission.
Welding | Standard | Standard Title |
Pole shafts&multi-sided tubular Cross arms&all accessories |
AWS D1.1/D1.1M:2010 | Structural Welding Code-Steel |
Welding wire | AWS D1.1/D1.1M:2010 | Structural Welding Code-Steel |
Hot dip galvanizing | Standard | Steel thickness/mm | Mean coating thickness/μm | Metallic element | Content |
Pole shafts,cross arms&bolted on accessories | ASTM A123/A123M-15 AS/NZS 4680 | >6 | 85 |
Mn
|
0.25%-0.40%
|
<3-6 | 70 | ||||
1.5-3 | 55 |
Cu
|
<0.15%
|
||
<1.5 | 55 | ||||
Bolts,nuts&washers |
GB/T 5267.3-2008 (ISO 10684-2004) |
_____ | ≥ 54 | P |
<0.025%
|
Foundation bolts | ASTM A153/A153M-09 | _____ | ≥ 54 |
S
|
<0.03% |