DO Transmission Tower

Transmission towers support high-voltage overhead lines for long-distance power transmission across regions.

Product Description

Product Description

Transmission line poles and towers

Transmission line poles and towers are tower structures used to support and raise overhead conductors, lightning rods and other accessories, so that conductors and conductors, poles and towers, conductors and lightning rods, and conductors on the ground or across objects to maintain a specified safe distance from the towering structure. According to the purposes are: tension tower, straight tower, corner tower, transposition tower (replacement of wire phase position tower), terminal tower and spanning tower.

 

Features:

1. Various towers are space frame structure. Bars are composed of single equilateral angle steel or combination of angle steel.
2. The materials are generally Q235,Q345and Q420. The connection between the bars is crude bolt.
3. Hot dip galvanized anti-corrosion. Very convenient for transportation and construction erection.
4. We set foot nails on one of main legs to facilitate the construction workers to climb onto the tower for operation.

 

Steel Grade:


1. High strength low alloy structural steel: Q420B which is equivalent with ASTM Gr60
 

2.High strength low alloy structural steel: Q355B which is equivalent with ASTM Gr50 or S355JR

3. Carbon Structural Steel: Q235B which is equivalent with ASTM A36 or S235JR

 

Product Parameters

Welding

Standard

Standard Title

Pole shafts&multi-sided tubular

AWS D1.1/D1.1M:2010

Structural Welding Code-Steel

 

Cross arms&all accessories

Welding wire

AWS D1.1/D1.1M:2010

Structural Welding Code-Steel

 

Steel

Yield Strength

(MPa)

standard

Standard Title

Metallic element

Content

main ingredient Q345

345 for Thickness<=16

GB/T 1591-2008

High strength low alloy structural steels

C

≤0.20

(ASTM A572/A572M-15, EN10025 S355N)

Mn

≤1.70

 

Si

≤0.50

Accessories Q235

235

GB/T 700-2006

Carbon structural steels

(ASTM A283 Gr.B ,EN10025 S235JR)

P

≤0.035

 

S

≤0.035