Qingdao Megatro steel tower company (megatro2082) |
Power transmission Steel Utility pole
A utility pole is a wooden pole used to support overhead power lines and various other public utilities, such as telephone, cable, or telecommunication.
Utility poles are commonly used to carry two types of electric power lines: distribution lines and sub-transmission lines. Distribution lines carry power from local substations to customers. They generally carry voltages from 4.6 to 33 kV for distances up to thirty miles, and include transformers to step the voltage down from the primary voltage of the lines to the lower secondary voltage used by the customer.
Sub-transmission lines carry higher voltage power from regional substations to local substations. They usually carry 46 kV, 69 kV, or 115 kV for distances up to 60 miles. 230kV lines are often supported on H-shaped towers made with two or three poles. Transmission lines carrying voltages of above 230kV are usually not supported by poles, but by metal pylons (known as transmission towers in the United States).
MEGATRO is equipped with sophisticated machinery and equipment for
the manufacture of Power transmission Steel Utility pole, we have
skilled worker with certificated welders, and offers a variety of
monopole types to meet client specific. Tapered steel and flanged
steel poles feature designs that blend well into the environment
and require minimum space for installation. Flanged steel poles are
easy to handle and install. Slip type with precision fitted
connections allow quick assembly of sections and total poles seems
uniform and harmony with environment, especially accept by our
foreign clients. Pole sections are available with identical base
flange plates, allowing for simplified modifications of mounting
heights.
In material we often adopt mild steel (ASTM A36, Q235B), high
strength and lower alloy (ASTM A572 GR50, GR65, Q345B, Q345C, Q420,
Q460, S355J0, S355JR and equivalent materials). MEGATRO can
optimize design and adjust steel utility pole size to make it less
weight, solid strength and economic cost. For tower surface, we
adopt hot-dipped galvanization, or zinc coating on towers and
components to meet ASTM-A123 standards or client accept standard...
Other information
Place of Origin: Qingdao, Shandong, China.
Availability size: Based on the customer's requirements
Material: Chinese material or as per clients requirement
Fabrication: Based on the customer's drawings and technical
requirements
Package: Both parties discuss and agreed before delivery
Terms of Payment: L/C, T/T
Minimum Order Quantity: 1 ton
Port of Loading: Qingdao Port
Delivery Time: One month or based on the customer's needs
Besides conform to the drawing and design, the materials and
fabrication of tower components shall conform to the following
standards (Chinese Standard or other standard):
1. GB/T2694-2003 Transmission line tower - - Technical requirements
for manufacturing
2. JGJ81-2002: Technical specification for welding for steel
structure of building
3. GB9787-88: Measuring and allowable tolerance for hot-rolled
equal angle
4. GB709-88: Measuring and allowable tolerance for hot-rolled plate
and strip
5. GB/T699-1999: Quality Carbon Structural Steel
6. GB/T1591-1994: Low alloy high strength structural Steel
7. GB700-88: Carbon Structural Steel
8. GB222-84: Method of sampling steel for determination of chemical
composition and permissible variations
9. GB/T228-2002: Method for Tensile testing of metals
10 GB/T232-1999: Method for Bending test of metals
11 GB/T5117-1995: Carbon Welding Rod
12 GB/T5118-1995: Low Alloy Welding Rod
13 GB/T8110-1995: Welding wires for gas shielding arc welding of
carbon and low alloy steels
14 GB/T10045-2001: Carbon steel flux cored electrodes for arc
welding
15 JB/T7949-1999: Weld outer dimensions for steel construction
16 GB50205-2001: Test Standard for Acceptance of Steel Structure
17 GB/T470-1997: Zinc Ingot
18 GB3098.1-2000: Mechanical properties of fasteners-Part 1: Bolts,
screws and studs
19 GB3098.2-2000: Mechanical properties of fasteners-Part2: Nuts,
and thread
20 GB3098.3-2000: Mechanical properties of fasteners-Part3:
Fastening screw
21 GB/T5780-2000: Helical Bolts Grade C
22 GB/T41-2000: Helical Nuts Grade C
23 GB/T90-2002: Flat Washer Grade C
24 GB/T13912-2002: Metal Coating, Technical Requirement