400kV double-circuit suspension pylons

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400kV double-circuit suspension pylons 400KV double circuit suspension pylon is widely used in oversea market, especially in Indian, Africa and other European countries market. Since 2008, we had design and supply every type of 400KV double-circuit suspension pylons for our oversea clients. A double-circuit suspension pylon has two circuits. For three-phase systems, each tower supports and insulates six conductors. 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 pylon 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 suspension pylons, 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 suspension pylons, 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: 10 tons 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

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Qingdao Megatro Mechanical and Electrical Equipmen

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