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230KV OHL STEEL TOWER
230KV OHL steel tower refer to a lattice steel structure used in
overhead electric power transmission and distribution to transmit
230KV circuit electrical energy along large distances. It consists
of one or more conductor (most often three or four) suspended by
towers or utility poles. Since most of the insulations is provided
by air, overhead power lines are generally the lowest-cost method
of power transmission for large quantities of electric energy.
Towers for support of the lines are made of wood (as-grown or
laminated), steel (either lattice structures or tubular poles),
concrete, aluminum, and occasionally reinforced plastics. MEGATRO
mainly produce, design and install galvanized steel tower, and
provide service on site for 230KV overhead transmission line.
230KV power transmission line belongs to high voltage grade, used
for sub-transmission and transmission of bulk quantities of
electric power and connection to very large consumers. Our 230KV
overhead transmission line steel tower including many types, such
as lattice angular tower, tubular tower, monopole, or guyed towers
and mast.
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 230KV
overhead transmission line steel 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 230KV overhead 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's 230KV overhead transmission line steel 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
Port of Loading: Qingdao Port
Lead Time: One month or based on the customer's needs
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/T8230-1995: 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