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% |