66-kV double circuit line tower

Quick Detail

Package & Delivery Lead Time

Detailed Description

66KV DOUBLE CIRCUIT TRANSMISSION STEEL TOWER 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 provide 66KV double circuit and multi circuit transmission lines 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. 606KV double circuit transmission steel tower mainly supply to our foreign client, and we had supplied more than 600 tons to NGCP per year. MEGATRO is one of the few manufactures who assemble a face of double circuit transmission 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 double circuit transmission 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's 66KV double circuit transmission 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: 5 tons 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. 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

Basic Company Information

Qingdao Megatro Mechanical and Electrical Equipmen

Company Advantage

Detail Company Introduction