400KV double circuit transmission line steel tower is widely used in oversea market, especially in Indian, Arica and other countries market. Since 2008, we had design and supply every type of 400KV lattice steel transmission tower for our oversea clients.

A double-circuit transmission line has two circuits. For three-phase systems, each tower supports and insulates six conductors. Single phase AC-power lines as used for traction current have four conductors for two circuits. Usually both circuits operate at the same voltage. In HVDC systems typically two conductors are carried per line, but rarely only one pole of the system is carried on a set of towers.
Both tubular and lattice steel towers can be designed so as to support two circuits of electrical current. Double-circuit towers hold the different conductors stacked atop one another, while in single-circuit towers the conductors are lined up horizontally.

MEGATRO can optimized design and make tower less weight, high strength, proper span distance, good wind resistance, and economy in the use of materials. MEGATRO is equipped with sophisticated machinery and equipment for the manufacture of 400KV double circuit transmission line steel tower, and offers a variety of designs to meet client specific. Lattices of triangular cross-section are most common, and square lattices are also widely used. After fabrication all 400KV double circuit transmission line steel tower, are delivered to the galvanizing facility to be Hot DIP Galvanized. Towers are processed through the facility by Caustic Cleaning, Pickling, and then Fluxing. These strict procedures insure years of maintenance free towers.
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: 1ton
Port of Loading: Qingdao Port
Delivery Time: One month or based on the customer's needs
Performance Standard
Besides conform to the drawing and design, the materials and fabrication of tower components shall conform to the Chinese Standard or other standard which clients can accept.
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/T8220-1995: 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

                          COMPANY PROFILE

Qingdao Megatro Holding Company Limited is a Structure Steel, Power Transmission line steel tower, Telecom tower, related power materials, wind turbine, wind tower, power flange, fabrication& export& import company. MEGATRO headquarter are located in Qingdao city, Shandong province, CHINA.

MEGATRO fabrication plants are equipped with state of the art equipments and machineries manned by skilled and talented staff. MEGATRO adheres to the principles of “We provide goods every time, and we offer you good all the time! “, “Good Quality Management” and committed to “Heath, Safety and Environment” standard. These values had made our plants certified ISO 9001:2008; ISO 14001:2004 and OHSAS18000:2007 company.

To meet our clients requirements, we also design every type of steel towers & poles as per American Society of Mechanical Engineers(ASME) , American National Standards Institute（ANSI） and clients standard.   Major design engineers come from America, India, and Egypt in meeting the quality requirements for standard of power transmission steel tower, telecom tower and standard fro steel building structures. We have top rank design engineer from Venezuela, USA and India, they can use PLS, TOWER software to design every type of steel structure. Moreover, our Chinese engineer can design every types of tower by software DAO POWER and others.

MEGATRO capabilities combined with the diversified and rich experience of our design engineers distinguish it as a professional manufacturer & trader in the power transmission line steel tower, telecom tower, wind turbine, wind tower, power flange, and structural steel. We are delighted to be a one-stop steel structure solutions with power material and related products provider and aspire to build on these relationships with our clients promising them a future as solid as steel.

Licensed Products:

Design, fabrication, supply and Erection of Steel structures, Telecom Towers, Overhead Electrical Transmission Lind Towers, Power Substation, Power Materials, Wind tower, Wind Turbine, Galvanizing; provide Wind Power Flange, Cables, power fitting &hardware, steel pipe, Insulator , Lam post and related products as per client requirements; Import and Export Steel ore

Object:

We don't make a lot of products you know.
We only make a lot of products you know better.

Mission: COMMITMENT TO EXCELLENT!

Vision:

We are committed to a philosophy of integrity and quality in everything we do.

We support customer focus, continuous improvement and pursuit of excellence in our products, service and people.

We will strive to have a completely satisfied customer at the end of each transaction.