Electricity pylon, is a tall structure, usually a steel lattice tower, used to support an overhead power line. They are used in high-voltage AC and DC systems, and come in a wide variety of shapes and sizes. Typical height ranges from 15 to 55 metres (49 to 180 ft), even higher as per client design. In addition to steel, other materials may be used, including concrete and wood. The term "pylon" comes from the basic shape of the structure, an obelisk-like structure which tapers toward the top, and is mostly used in the United Kingdom and parts of Europe in everyday colloquial speech.
There are four major categories of electricity pylon: Suspension, terminal, tension, and transposition. Some transmission towers combine these basic functions. Both tubular and lattice steel towers can be designed to be as electrical pylons. MEGATRO provide the electrical pylons for our esteemed clients. The Tower Line work involves Survey, check survey, and span calculations essential for tower extensions. Moreover, Tower designs and prototype approval is done.
MEGATRO provide many types of 33KV steel pylons for overhead power transmission for our clients, which is widely use for oversea clients, 33KV steel pylons for overhead power transmission is used for urban power grid. Till now, we had provided too many 33KV distribution and transmission steel pylons for African market these years.
MEGATRO is equipped with sophisticated machinery and equipment for the manufacture of monopole for 33KV power transmission line project, 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 monopole 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...
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: 1ton
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/T2334-2003 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/T339-1999: 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
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