Dead end transmission pole
A dead end structure is typically used where transmission line conductors turn at a wide angle or end. Compared to tangent pole, a dead end pole is designed to be stronger and often is a large structure. Typically, insulators on a dead end pole are in series with the conductors (horizontal) to bring wind, weight, and line angle loads directly to the structure. A dead end ole is designed to resist the full unbalanced tension that would occur if all conductors were removed from one face of the poles.
MEGATRO provide many types of Dead end transmission poles for our clients, which is widely use for oversea clients, which including flange and slip types. Power voltage including 4.8KV, 22KV, 24KV, 24.5KV, 66KV, 69KV, 110KV, 115KV, 132KV, 220KV and others according to client. In shape and connection type, our dead end transmission pole have flange type, slip type, step and stagger pole types.
Our main design engineer from USA, can use PLS software to design every type steel tower beased 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.
Steel 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. After fabrication all towers 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.
Performance Standard: Chinese standard or other international 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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