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500KV double circuit tower with surge arrester supports

500KV double circuit transmission line tower is widely used in global markets. Double-circuit transmission line have two circuits and hold the different conductors stacked atop one another, this photo refer to our 500KV double circuit tower with surge arrester supports at two sides.

MEGATRO can optimized design and make tower less weight, high strength, proper span distance, good wind resistance, and economy in the use of materials, especially in tower design, we can make final weight lower, with maximum utility of material and make total structure more strong and sturdy. MEGATRO is equipped with sophisticated machinery and equipment for the manufacture of 500KV double circuit tower, and offers a variety of designs to meet client specific.

Our main design engineer from USA, can use PLS &TOWER software to design every type steel tower based on structural calculations and geometrical frame drawings. To meet the expectation, we produce shop drawings, components list and full production documentation, and even complete 3D models that facilitate the elimination of all design and drawings errors generated on the drawings. Another advantage is our 3D design and loading & design report, and can optimized the design and save cost for our clients.
 

MEGATRO had professional QA &QC team to control quality and execute strict QC & QC plan as per client requirements. MEGATRO is one of the few manufactures who assemble a face of 500KV overhead transmission line steel tower.  After fabrication all 500KV 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.
MEGATRO is one of the few manufactures who assemble a face of every tower section. This attention to quality may not be the cheapest process but it does insure every tower meets our high standards of quality. And it helps to reduce on-site construction cost due to mismatched assemblies.

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
Fabrication standard: Chinese Standard or other standard which client accepted

Steel grades
tower legs: Chinese steel Q345B, which same to ASTM A572 GR50
Other webs, bracing and not stress plate and angle steel: Chinese Q235B, which same to ASTM A36
Plates: Chinese steel Q345B, which same to ASTM A572 GR50
Bolts: Chinese grade 6.8 and 8.8, which similar to ASTM A394
a) Dimension and tolerance for angle are according to GB/T1591-1994, similar to EN 10056-1/2
b) Hot dip galvanization in accordance with GB/T 13912-2002, which similar to ASTM A 123
c) The welding will be performance in accordance with AWS D1.1 or CWB standard

If any special requirement, we can design and discuss with client.

bon�\e ��M(�Od 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

SuspensionAngle Towers

• Suspension angle towers are built when it is necessary for the route of the electrical current to turn. These angle towers are usually designed so that the axis of the cross-arm bisects the angle of the conductors. This is the most efficient way to use the tower.

Read more: Types of Transmission Towers | eHow http://www.ehow.com/list_7372194_types-transmission-towers.html#ixzz2Ue1QulGO

Guyed-V tower
This tower is designed for voltages ranging from 230 to 735 kV. It's used mainly for power lines leaving the La Grande and Manic-Outardes hydroelectric complexes. The guyed-V tower is more economical than the double-circuit and waist-type towers.

�\iy`���N"sans-serif"'>Availability size: Based on the customer’s requirements.

Material: Chinese material or as per clients requirement

Package: both parties discuss before delivery

Terms of Payment: L/C, T/T

Minimum Order Quantity: 1ton

Portof Loading: Qingdao Port

Lead 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.

Ultra High Voltage DC transmission towers (UHVDC TOWER)
In the power transmission line project, ultra high voltage refer to voltage more than 1000KV, which including 1000KV or 1100KV power transmission line project, in these project the towers must be designed to carry three (or multiples of three) conductors. The towers are usually steel lattices or truss, in direct current power transmission project come the name of Ultra High voltage DC transmission towers.

MEGATRO is one of the few manufactures who assemble a face of every UHVDC TOWER. This attention to quality may not be the cheapest process but it does insure every tower meets our high standards of quality. And it helps to reduce on-site construction cost due to mismatched assemblies.

After fabrication all UHVDC 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.

MEGATRO' UHVDC TOWER systems can accommodate a variety of cross-arm. MEGATRO also offers a wide variety of accessories and mounts.

Availability size: Based on the customer's requirements.
Material: Chinese material or as per clients requirement
Package: Both parties discuss before delivery
Terms of Payment: L/C, T/T
Minimum Order Quantity: 1ton
Port of Loading: Qingdao Port
Lead 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.